Flinn-Engdahl Regions

The globe is broken down into regions based on geographic and politcal boundaries.
Each region is assigned a unique number.

 
 Seismic Region   1
  Alaska - Aleutian Arc
  
   1  CENTRAL ALASKA
   2  SOUTHERN ALASKA
   3  BERING SEA
   4  KOMANDORSKY ISLANDS REGION
   5  NEAR ISLANDS, ALEUTIAN ISLANDS
   6  RAT ISLANDS, ALEUTIAN ISLANDS
   7  ANDREANOF ISLANDS, ALEUTIAN IS.
   8  PRIBILOF ISLANDS, ALASKA REGION
   9  FOX ISLANDS, ALEUTIAN ISLANDS
  10  UNIMAK ISLAND REGION, ALASKA
  11  BRISTOL BAY
  12  ALASKA PENINSULA
  13  KODIAK ISLAND REGION, ALASKA
  14  KENAI PENINSULA, ALASKA
  15  GULF OF ALASKA
  16  SOUTH OF ALEUTIAN ISLANDS
  17  SOUTH OF ALASKA
 
 Seismic Region   2
  Southeastern Alaska to Washington  
  
  18  SOUTHERN YUKON TERRITORY, CANADA
  19  SOUTHEASTERN ALASKA
  20  OFF COAST OF SOUTHEASTERN ALASKA
  21  WEST OF VANCOUVER ISLAND
  22  QUEEN CHARLOTTE ISLANDS REGION
  23  BRITISH COLUMBIA, CANADA
  24  ALBERTA, CANADA
  25  VANCOUVER ISLAND, CANADA REGION
  26  OFF COAST OF WASHINGTON
  27  NEAR COAST OF WASHINGTON
  28  WASHINGTON-OREGON BORDER REGION
  29  WASHINGTON
 
 Seismic Region   3
  Oregon, California and Nevada      
 
  30  OFF COAST OF OREGON
  31  NEAR COAST OF OREGON
  32  OREGON
  33  WESTERN IDAHO
  34  OFF COAST OF NORTHERN CALIFORNIA
  35  NEAR COAST OF NORTHERN CALIF.
  36  NORTHERN CALIFORNIA
  37  NEVADA
  38  OFF COAST OF CALIFORNIA
  39  CENTRAL CALIFORNIA
  40  CALIFORNIA-NEVADA BORDER REGION
  41  SOUTHERN NEVADA
  42  WESTERN ARIZONA
  43  SOUTHERN CALIFORNIA
  44  CALIFORNIA-ARIZONA BORDER REGION
  45  CALIF.-BAJA CALIF. BORDER REGION
  46  W. ARIZONA-SONORA BORDER REGION
 
 Seismic Region   4
  Baja California and Gulf of California                 
 
  47  OFF W. COAST OF BAJA CALIFORNIA
  48  BAJA CALIFORNIA, MEXICO
  49  GULF OF CALIFORNIA
  50  SONORA, MEXICO
  51  OFF COAST OF CENTRAL MEXICO
  52  NEAR COAST OF CENTRAL MEXICO
 
 Seismic Region   5
  Mexico - Guatemala Area            
 
  53  REVILLA GIGEDO ISLANDS REGION
  54  OFF COAST OF JALISCO, MEXICO
  55  NEAR COAST OF JALISCO, MEXICO
  56  NEAR COAST OF MICHOACAN, MEXICO
  57  MICHOACAN, MEXICO
  58  NEAR COAST OF GUERRERO, MEXICO
  59  GUERRERO, MEXICO
  60  OAXACA, MEXICO
  61  CHIAPAS, MEXICO
  62  MEXICO-GUATEMALA BORDER REGION
<  63  OFF COAST OF MEXICO
  64  OFF COAST OF MICHOACAN, MEXICO
  65  OFF COAST OF GUERRERO, MEXICO
  66  NEAR COAST OF OAXACA, MEXICO
  67  OFF COAST OF OAXACA, MEXICO
  68  OFF COAST OF CHIAPAS, MEXICO
  69  NEAR COAST OF CHIAPAS, MEXICO
  70  GUATEMALA
  71  NEAR COAST OF GUATEMALA
+ 730  NORTHERN EAST PACFIC RISE
 
 Seismic Region   6
  Central America                    
 
  72  HONDURAS
  73  EL SALVADOR
  74  NEAR COAST OF NICARAGUA
  75  NICARAGUA
  76  OFF COAST OF CENTRAL AMERICA
  77  OFF COAST OF COSTA RICA
  78  COSTA RICA
  79  NORTH OF PANAMA
  80  PANAMA-COSTA RICA BORDER REGION
  81  PANAMA
  82  PANAMA-COLOMBIA BORDER REGION
  83  SOUTH OF PANAMA
 
 Seismic Region   7
  Caribbean Loop                     
 
  84  YUCATAN PENINSULA, MEXICO
  85  CUBA REGION
  86  JAMAICA REGION
  87  HAITI REGION
  88  DOMINICAN REPUBLIC REGION
  89  MONA PASSAGE
  90  PUERTO RICO REGION
  91  VIRGIN ISLANDS
  92  LEEWARD ISLANDS
  93  BELIZE
<  94  CARIBBEAN SEA
  95  WINDWARD ISLANDS
  96  NEAR NORTH COAST OF COLOMBIA
  97  NEAR COAST OF VENEZUELA
  98  TRINIDAD
  99  NORTHERN COLOMBIA
 100  LAKE MARACAIBO, VENEZUELA
 101  VENEZUELA
+ 731  NORTH OF HONDURAS
 
 Seismic Region   8
  Andean South America               
 
 102  NEAR WEST COAST OF COLOMBIA
 103  COLOMBIA
 104  OFF COAST OF ECUADOR
 105  NEAR COAST OF ECUADOR
 106  COLOMBIA-ECUADOR BORDER REGION
 107  ECUADOR
 108  OFF COAST OF NORTHERN PERU
 109  NEAR COAST OF NORTHERN PERU
 110  PERU-ECUADOR BORDER REGION
 111  NORTHERN PERU
 112  PERU-BRAZIL BORDER REGION
 113  WESTERN BRAZIL
 114  OFF COAST OF PERU
 115  NEAR COAST OF PERU
 116  CENTRAL PERU
 117  SOUTHERN PERU
 118  PERU-BOLIVIA BORDER REGION
 119  NORTHERN BOLIVIA
 120  CENTRAL BOLIVIA
 121  OFF COAST OF NORTHERN CHILE
 122  NEAR COAST OF NORTHERN CHILE
 123  NORTHERN CHILE
 124  CHILE-BOLIVIA BORDER REGION
 125  SOUTHERN BOLIVIA
 126  PARAGUAY
 127  CHILE-ARGENTINA BORDER REGION
 128  JUJUY PROVINCE, ARGENTINA
 129  SALTA PROVINCE, ARGENTINA
 130  CATAMARCA PROVINCE, ARGENTINA
 131  TUCUMAN PROVINCE, ARGENTINA
 132  SANTIAGO DEL ESTERO PROV., ARG.
 133  NORTHEASTERN ARGENTINA
 134  OFF COAST OF CENTRAL CHILE
 135  NEAR COAST OF CENTRAL CHILE
 136  CENTRAL CHILE
 137  SAN JUAN PROVINCE, ARGENTINA
 138  LA RIOJA PROVINCE, ARGENTINA
 139  MENDOZA PROVINCE, ARGENTINA
 140  SAN LUIS PROVINCE, ARGENTINA
 141  CORDOBA PROVINCE, ARGENTINA
 142  URUGUAY
 
 Seismic Region   9
  Extreme South America       
 
 143  OFF COAST OF SOUTHERN CHILE
 144  SOUTHERN CHILE
 145  S. CHILE-ARGENTINA BORDER REGION
 146  SOUTHERN ARGENTINA
 
 Seismic Region  10
  Southern Antilles                  
 
 147  TIERRA DEL FUEGO
 148  FALKLAND ISLANDS REGION
 149  DRAKE PASSAGE
 150  SCOTIA SEA
 151  SOUTH GEORGIA ISLAND REGION
 152  SOUTH GEORGIA RISE
 153  SOUTH SANDWICH ISLANDS REGION
 154  SOUTH SHETLAND ISLANDS
 155  ANTARCTIC PENINSULA
< 156  SOUTHWESTERN ATLANTIC OCEAN
 157  WEDDELL SEA
+ 732  EAST OF SOUTH SANDWICH ISLANDS
 
 Seismic Region  11
  New Zealand Region                 
 
 158  OFF W. COAST OF N. ISLAND, N.Z.
 159  NORTH ISLAND, NEW ZEALAND
 160  OFF E. COAST OF N. ISLAND, N.Z.
 161  OFF W. COAST OF S. ISLAND, N.Z.
 162  SOUTH ISLAND, NEW ZEALAND
 163  COOK STRAIT, NEW ZEALAND
 164  OFF E. COAST OF S. ISLAND, N.Z.
 165  NORTH OF MACQUARIE ISLAND
 166  AUCKLAND ISLANDS, N.Z.  REGION
 167  MACQUARIE ISLAND REGION
 168  SOUTH OF NEW ZEALAND
 
 Seismic Region  12
  Kermadec - Tonga - Samoa Basin Area      
 
 169  SAMOA ISLANDS REGION
 170  SAMOA ISLANDS
 171  SOUTH OF FIJI ISLANDS
¬ 172  WEST OF TONGA ISLANDS
 173  TONGA ISLANDS
 174  TONGA ISLANDS REGION
 175  SOUTH OF TONGA ISLANDS
 176  NORTH OF NEW ZEALAND
 177  KERMADEC ISLANDS REGION
 178  KERMADEC ISLANDS, NEW ZEALAND
 179  SOUTH OF KERMADEC ISLANDS
 
 Seismic Region  13
  Fiji Islands Area                          
 
 180  NORTH OF FIJI ISLANDS
 181  FIJI ISLANDS REGION
 182  FIJI ISLANDS
 
 Seismic Region  14
  Vanuatu Islands          
 
 183  SANTA CRUZ ISLANDS REGION
 184  SANTA CRUZ ISLANDS
 185  VANUATU ISLANDS REGION
 186  VANUATU ISLANDS
 187  NEW CALEDONIA
 188  LOYALTY ISLANDS
 189  SOUTHEAST OF LOYALTY ISLANDS
 
 Seismic Region  15
  Bismarck and Solomon Islands       
 
 190  NEW IRELAND REGION, P.N.G.
 191  NORTH OF SOLOMON ISLANDS
 192  NEW BRITAIN REGION, P.N.G.
 193  SOLOMON ISLANDS
 194  D'ENTRECASTEAUX ISLANDS REGION
 195  SOUTH OF SOLOMON ISLANDS
 
 Seismic Region  16
  New Guinea                         
 
 196  IRIAN JAYA REGION, INDONESIA
 197  NEAR NORTH COAST OF IRIAN JAYA
 198  NINIGO ISLANDS REGION, P.N.G.
 199  ADMIRALTY ISLANDS REGION, P.N.G.
 200  NEAR N COAST OF NEW GUINEA, PNG.
 201  IRIAN JAYA, INDONESIA
 202  NEW GUINEA, PAPUA NEW GUINEA
 203  BISMARCK SEA
 204  ARU ISLANDS REGION, INDONESIA
 205  NEAR SOUTH COAST OF IRIAN JAYA
 206  NEAR S COAST OF NEW GUINEA, PNG.
 207  EASTERN NEW GUINEA REG., P.N.G.
 208  ARAFURA SEA
 
 Seismic Region  17
  Caroline Islands Area              
 
 209  W. CAROLINE ISLANDS, MICRONESIA
 210  SOUTH OF MARIANA ISLANDS
 
 Seismic Region  18
  Guam to Japan
 
 211  SOUTHEAST OF HONSHU, JAPAN
 212  BONIN ISLANDS, JAPAN REGION
 213  VOLCANO ISLANDS, JAPAN REGION
 214  WEST OF MARIANA ISLANDS
 215  MARIANA ISLANDS REGION
 216  MARIANA ISLANDS
 
 Seismic Region  19
  Japan - Kuril Islands - Kamchatka Peninsula         
 
 217  KAMCHATKA PENINSULA, RUSSIA
 218  NEAR EAST COAST OF KAMCHATKA
 219  OFF EAST COAST OF KAMCHATKA
 220  NORTHWEST OF KURIL ISLANDS
 221  KURIL ISLANDS
 222  EAST OF KURIL ISLANDS
 223  EASTERN SEA OF JAPAN
 224  HOKKAIDO, JAPAN  REGION
 225  OFF COAST OF HOKKAIDO, JAPAN
 226  NEAR WEST COAST OF HONSHU, JAPAN
 227  EASTERN HONSHU, JAPAN
 228  NEAR EAST COAST OF HONSHU, JAPAN
 229  OFF EAST COAST OF HONSHU, JAPAN
 230  NEAR S. COAST OF HONSHU, JAPAN
 
 Seismic Region  20
  Southwestern Japan and Ryukyu Islands   
 
 231  SOUTH KOREA
 232  WESTERN HONSHU, JAPAN
 233  NEAR S. COAST OF WESTERN HONSHU
 234  NORTHWEST OF RYUKYU ISLANDS
 235  KYUSHU, JAPAN
 236  SHIKOKU, JAPAN
 237  SOUTHEAST OF SHIKOKU, JAPAN
 238  RYUKYU ISLANDS, JAPAN
 239  SOUTHEAST OF RYUKYU ISLANDS
 240  WEST OF BONIN ISLANDS
 241  PHILIPPINE SEA
 
 Seismic Region  21
  Taiwan Area                        
 
 242  NEAR COAST OF SOUTHEASTERN CHINA
 243  TAIWAN REGION
 244  TAIWAN
 245  NORTHEAST OF TAIWAN
 246  SOUTHWESTERN RYUKYU ISL., JAPAN
 247  SOUTHEAST OF TAIWAN
 
 Seismic Region  22
  Philippine Islands                 
 
 248  PHILIPPINE ISLANDS REGION
 249  LUZON, PHILIPPINES
 250  MINDORO, PHILIPPINES
 251  SAMAR, PHILIPPINES
 252  PALAWAN, PHILIPPINES
 253  SULU SEA
 254  PANAY, PHILIPPINES
 255  CEBU, PHILIPPINES
 256  LEYTE, PHILIPPINES
 257  NEGROS, PHILIPPINES
 258  SULU ARCHIPELAGO, PHILIPPINES
 259  MINDANAO, PHILIPPINES
 260  EAST OF PHILIPPINE ISLANDS
 
 Seismic Region  23
  Bornea - Sulawesi
 
 261  BORNEO
 262  CELEBES SEA
 263  TALAUD ISLANDS, INDONESIA
 264  NORTH OF HALMAHERA, INDONESIA
 265  MINAHASSA PENINSULA, SULAWESI
 266  NORTHERN MOLUCCA SEA
 267  HALMAHERA, INDONESIA
 268  SULAWESI, INDONESIA
 269  SOUTHERN MOLUCCA SEA
 270  CERAM SEA
 271  BURU, INDONESIA
 272  SERAM, INDONESIA
 
 Seismic Region  24
  Sunda Arc                          
 
 273  SOUTHWEST OF SUMATERA, INDONESIA
 274  SOUTHERN SUMATERA, INDONESIA
 275  JAVA SEA
 276  SUNDA STRAIT, INDONESIA
 277  JAVA, INDONESIA
 278  BALI SEA
 279  FLORES SEA
 280  BANDA SEA
 281  TANIMBAR ISLANDS REG., INDONESIA
 282  SOUTH OF JAVA, INDONESIA
 283  BALI REGION, INDONESIA
 284  SOUTH OF BALI, INDONESIA
 285  SUMBAWA REGION, INDONESIA
 286  FLORES REGION, INDONESIA
 287  SUMBA REGION, INDONESIA
 288  SAVU SEA
 289  TIMOR REGION
 290  TIMOR SEA
 291  SOUTH OF SUMBAWA, INDONESIA
 292  SOUTH OF SUMBA, INDONESIA
 293  SOUTH OF TIMOR, INDONESIA
 
 Seismic Region  25
  Myanmar and Southeast Asia         
 
 294  MYANMAR-INDIA BORDER REGION
 295  MYANMAR-BANGLADESH BORDER REGION
 296  MYANMAR
 297  MYANMAR-CHINA BORDER REGION
 298  NEAR SOUTH COAST OF MYANMAR
¬ 299  SOUTHEAST ASIA
 300  HAINAN ISLAND, CHINA
 301  SOUTH CHINA SEA
+ 733  THAILAND
+ 734  LAOS
+ 735  CAMBODIA
+ 736  VIETNAM
+ 737  GULF OF TONGKING
 
 Seismic Region  26
  India - Xizand - Sichuan - Yunnan
 
 302  EASTERN KASHMIR
 303  KASHMIR-INDIA BORDER REGION
 304  KASHMIR-XIZANG BORDER REGION
 305  WESTERN XIZANG-INDIA BORDER REGION
 306  XIZANG
 307  SICHUAN, CHINA
 308  NORTHERN INDIA
 309  NEPAL-INDIA BORDER REGION
 310  NEPAL
 311  SIKKIM, INDIA
 312  BHUTAN
 313  EASTERN XIZANG-INDIA BORDER REG.
 314  SOUTHERN INDIA
 315  INDIA-BANGLADESH BORDER REGION
 316  BANGLADESH
 317  NORTHEASTERN INDIA
 318  YUNNAN, CHINA
 319  BAY OF BENGAL
 
 Seismic Region  27
  Southern Xinjiang to Gansu         
 
 320  KYRGYZSTAN-XINJIANG BORDER REG.
 321  SOUTHERN XINJIANG, CHINA
 322  GANSU, CHINA
 323  WESTERN NEI MONGOL, CHINA
 324  KASHMIR-XINJIANG BORDER REGION
 325  QINGHAI, CHINA
 
 Seismic Region  28
  Lake Issyk-Kul to Lake Baykal           
 
 326  SOUTHWESTERN SIBERIA, RUSSIA
 327  LAKE BAYKAL REGION, RUSSIA
 328  EAST OF LAKE BAYKAL, RUSSIA
 329  EASTERN KAZAKHSTAN
 330  LAKE ISSYK-KUL REGION
 331  KAZAKHSTAN-XINJIANG BORDER REG.
 332  NORTHERN XINJIANG, CHINA
 333  RUSSIA-MONGOLIA BORDER REGION
 334  MONGOLIA
 
 Seismic Region  29
  Western Asia                      
 
 335  URAL MOUNTAINS REGION, RUSSIA
 336  WESTERN KAZAKHSTAN
 337  EASTERN CAUCASUS
 338  CASPIAN SEA
 339  NORTHWESTERN UZBEKISTAN
 340  TURKMENISTAN
 341  TURKMENISTAN-IRAN BORDER REGION
 342  TURKMENISTAN-AFGHANISTAN BRD REG
 343  TURKEY-IRAN BORDER REGION
 344  ARMENIA-AZERBAIJAN-IRAN BORD REG
 345  NORTHWESTERN IRAN
 346  IRAN-IRAQ BORDER REGION
 347  WESTERN IRAN
 348  NORTHERN AND CENTRAL IRAN
 349  NORTHWESTERN AFGHANISTAN
 350  SOUTHWESTERN AFGHANISTAN
 351  EASTERN ARABIAN PENINSULA
 352  PERSIAN GULF
 353  SOUTHERN IRAN
 354  SOUTHWESTERN PAKISTAN
 355  GULF OF OMAN
 356  OFF COAST OF PAKISTAN
 
 Seismic Region  30
  Middle East - Crimea - Eastern Balkans    
 
 357  UKRAINE-MOLDOVA-SW RUSSIA REGION
 358  ROMANIA
 359  BULGARIA
 360  BLACK SEA
 361  CRIMEA REGION, UKRAINE
 362  WESTERN CAUCASUS
 363  GREECE-BULGARIA BORDER REGION
 364  GREECE
 365  AEGEAN SEA
 366  TURKEY
 367  GEORGIA-ARMENIA-TURKEY BORD REG.
 368  SOUTHERN GREECE
 369  DODECANESE ISLANDS, GREECE
 370  CRETE, GREECE
 371  EASTERN MEDITERRANEAN SEA
 372  CYPRUS REGION
 373  DEAD SEA REGION
 374  JORDAN - SYRIA REGION
 375  IRAQ
 
 Seismic Region  31
  Western Mediterranean Area         
 
 376  PORTUGAL
 377  SPAIN
 378  PYRENEES
 379  NEAR SOUTH COAST OF FRANCE
 380  CORSICA, FRANCE
 381  CENTRAL ITALY
 382  ADRIATIC SEA
 383  NORTHWESTERN BALKAN REGION
 384  WEST OF GIBRALTAR
 385  STRAIT OF GIBRALTAR
 386  BALEARIC ISLANDS, SPAIN
 387  WESTERN MEDITERRANEAN SEA
 388  SARDINIA, ITALY
 389  TYRRHENIAN SEA
 390  SOUTHERN ITALY
 391  ALBANIA
 392  GREECE-ALBANIA BORDER REGION
 393  MADEIRA ISLANDS, PORTUGAL REGION
 394  CANARY ISLANDS, SPAIN REGION
 395  MOROCCO
 396  NORTHERN ALGERIA
 397  TUNISIA
 398  SICILY, ITALY
 399  IONIAN SEA
 400  CENTRAL MEDITERRANEAN SEA
 401  NEAR COAST OF LIBYA
 
 Seismic Region  32
  Atlantic Ocean                     
 
< 402  NORTH ATLANTIC OCEAN
 403  NORTHERN MID-ATLANTIC RIDGE
 404  AZORES ISLANDS REGION
 405  AZORES ISLANDS, PORTUGAL
 406  CENTRAL MID-ATLANTIC RIDGE
 407  NORTH OF ASCENSION ISLAND
 408  ASCENSION ISLAND REGION
 409  SOUTH ATLANTIC OCEAN
 410  SOUTHERN MID-ATLANTIC RIDGE
 411  TRISTAN DA CUNHA REGION
 412  BOUVET ISLAND REGION
 413  SOUTHWEST OF AFRICA
 414  SOUTHEASTERN ATLANTIC OCEAN
+ 738  REYKJANES RIDGE
+ 739  AZORES-CAPE ST. VINCENT RIDGE
 
 Seismic Region  33
  Indian Ocean                       
 
 415  EASTERN GULF OF ADEN
 416  SOCOTRA REGION
< 417  ARABIAN SEA
 418  LAKSHADWEEP REGION, INDIA
 419  NORTHEASTERN SOMALIA
 420  NORTH INDIAN OCEAN
 421  CARLSBERG RIDGE
 422  MALDIVE ISLANDS REGION
 423  LACCADIVE SEA
 424  SRI LANKA
< 425  SOUTH INDIAN OCEAN
 426  CHAGOS ARCHIPELAGO REGION
 427  MAURITIUS - REUNION REGION
 428  SOUTHWEST INDIAN RIDGE
 429  MID-INDIAN RIDGE
 430  SOUTH OF AFRICA
 431  PRINCE EDWARD ISLANDS REGION
 432  CROZET ISLANDS REGION
 433  KERGUELEN ISLANDS REGION
 434  BROKEN RIDGE
 435  SOUTHEAST INDIAN RIDGE
 436  SOUTHERN KERGUELEN PLATEAU
< 437  SOUTH OF AUSTRALIA
+ 740  OWEN FRACTURE ZONE REGION
+ 741  INDIAN OCEAN TRIPLE JUNCTION
+ 742  WESTERN INDIAN-ANTARCTIC RIDGE
 
 Seismic Region  34
  Eastern North America              
 
 438  SASKATCHEWAN, CANADA
 439  MANITOBA, CANADA
 440  HUDSON BAY
 441  ONTARIO, CANADA
 442  HUDSON STRAIT REGION, CANADA
 443  NORTHERN QUEBEC, CANADA
 444  DAVIS STRAIT
 445  LABRADOR, CANADA
 446  LABRADOR SEA
 447  SOUTHERN QUEBEC, CANADA
 448  GASPE PENINSULA, CANADA
 449  EASTERN QUEBEC, CANADA
 450  ANTICOSTI ISLAND, CANADA
 451  NEW BRUNSWICK, CANADA
 452  NOVA SCOTIA, CANADA
 453  PRINCE EDWARD ISLAND, CANADA
 454  GULF OF ST. LAWRENCE
 455  NEWFOUNDLAND, CANADA
 456  MONTANA
 457  EASTERN IDAHO
 458  HEBGEN LAKE REGION
 459  YELLOWSTONE REGION, WYOMING
 460  WYOMING
 461  NORTH DAKOTA
 462  SOUTH DAKOTA
 463  NEBRASKA
 464  MINNESOTA
 465  IOWA
 466  WISCONSIN
 467  ILLINOIS
 468  MICHIGAN
 469  INDIANA
 470  SOUTHERN ONTARIO, CANADA
 471  OHIO
 472  NEW YORK
 473  PENNSYLVANIA
 474  VERMONT - NEW HAMPSHIRE REGION
 475  MAINE
 476  SOUTHERN NEW ENGLAND
 477  GULF OF MAINE
 478  UTAH
 479  COLORADO
 480  KANSAS
 481  IOWA-MISSOURI BORDER REGION
 482  MISSOURI-KANSAS BORDER REGION
 483  MISSOURI
 484  MISSOURI-ARKANSAS BORDER REGION
 485  EASTERN MISSOURI
 486  NEW MADRID, MISSOURI  REGION
 487  CAPE GIRARDEAU, MISSOURI  REGION
 488  SOUTHERN ILLINOIS
 489  SOUTHERN INDIANA
 490  KENTUCKY
 491  WEST VIRGINIA
 492  VIRGINIA
 493  CHESAPEAKE BAY REGION
 494  NEW JERSEY
 495  EASTERN ARIZONA
 496  NEW MEXICO
 497  TEXAS PANHANDLE REGION
 498  WESTERN TEXAS
 499  OKLAHOMA
 500  CENTRAL TEXAS
 501  ARKANSAS-OKLAHOMA BORDER REGION
 502  ARKANSAS
 503  LOUISIANA-TEXAS BORDER REGION
 504  LOUISIANA
 505  MISSISSIPPI
 506  TENNESSEE
 507  ALABAMA
 508  WESTERN FLORIDA
 509  GEORGIA, USA
 510  FLORIDA-GEORGIA BORDER REGION
 511  SOUTH CAROLINA
 512  NORTH CAROLINA
 513  OFF EAST COAST OF UNITED STATES
 514  FLORIDA PENINSULA
 515  BAHAMA ISLANDS
 516  E. ARIZONA-SONORA BORDER REGION
 517  NEW MEXICO-CHIHUAHUA BORDER REG.
 518  TEXAS-MEXICO BORDER REGION
 519  SOUTHERN TEXAS
 520  NEAR COAST OF TEXAS
 521  CHIHUAHUA, MEXICO
 522  NORTHERN MEXICO
 523  CENTRAL MEXICO
 524  JALISCO, MEXICO
 525  VERACRUZ, MEXICO
 526  GULF OF MEXICO
 527  BAY OF CAMPECHE
 
 Seismic Region  35
  Eastern South America              
 
 528  BRAZIL
 529  GUYANA
 530  SURINAME
 531  FRENCH GUIANA
 
 Seismic Region  36
  Northwestern Europe                
 
 532  IRELAND
 533  UNITED KINGDOM
 534  NORTH SEA
 535  SOUTHERN NORWAY
 536  SWEDEN
 537  BALTIC SEA
 538  FRANCE
 539  BAY OF BISCAY
 540  THE NETHERLANDS
 541  BELGIUM
 542  DENMARK
 543  GERMANY
 544  SWITZERLAND
 545  NORTHERN ITALY
 546  AUSTRIA
 547  CZECH AND SLOVAK REPUBLICS
 548  POLAND
 549  HUNGARY
 
 Seismic Region  37
  Africa                             
 
¬ 550  NORTHWEST AFRICA
 551  SOUTHERN ALGERIA
 552  LIBYA
 553  EGYPT
 554  RED SEA
 555  WESTERN ARABIAN PENINSULA
 556  CHAD REGION
 557  SUDAN
 558  ETHIOPIA
 559  WESTERN GULF OF ADEN
 560  NORTHWESTERN SOMALIA
 561  OFF S. COAST OF NORTHWEST AFRICA
 562  CAMEROON
 563  EQUATORIAL GUINEA
 564  CENTRAL AFRICAN REPUBLIC
 565  GABON
 566  REPUBLIC OF CONGO
 567  DEMOCRATIC REPUBLIC OF CONGO
 568  UGANDA
 569  LAKE VICTORIA REGION
 570  KENYA
 571  SOUTHERN SOMALIA
 572  LAKE TANGANYIKA REGION
 573  TANZANIA
 574  NORTHWEST OF MADAGASCAR
 575  ANGOLA
 576  ZAMBIA
 577  MALAWI
 578  NAMIBIA
 579  BOTSWANA
 580  ZIMBABWE
 581  MOZAMBIQUE
 582  MOZAMBIQUE CHANNEL
 583  MADAGASCAR
 584  SOUTH AFRICA
 585  LESOTHO
 586  SWAZILAND
 587  OFF COAST OF SOUTH AFRICA
+ 743  WESTERN SAHARA
+ 744  MAURITANIA
+ 745  MALI
+ 746  SENEGAL - GAMBIA REGION
+ 747  GUINEA REGION
+ 748  SIERRA LEONE
+ 749  LIBERIA REGION
+ 750  COTE D'IVOIRE
+ 751  BURKINA FASO
+ 752  GHANA
+ 753  BENIN - TOGO REGION
+ 754  NIGER
+ 755  NIGERIA
 
 Seismic Region  38
  Australia                          
 
 588  NORTHWEST OF AUSTRALIA
 589  WEST OF AUSTRALIA
 590  WESTERN AUSTRALIA
 591  NORTHERN TERRITORY, AUSTRALIA
 592  SOUTH AUSTRALIA
 593  GULF OF CARPENTARIA
 594  QUEENSLAND, AUSTRALIA
 595  CORAL SEA
 596  NORTHWEST OF NEW CALEDONIA
 597  SOUTHWEST OF NEW CALEDONIA
 598  SOUTHWEST OF AUSTRALIA
 599  OFF SOUTH COAST OF AUSTRALIA
 600  NEAR COAST OF SOUTH AUSTRALIA
 601  NEW SOUTH WALES, AUSTRALIA
 602  VICTORIA, AUSTRALIA
 603  NEAR S.E. COAST OF AUSTRALIA
 604  NEAR EAST COAST OF AUSTRALIA
 605  EAST OF AUSTRALIA
 606  NORFOLK ISLAND REGION
 607  NORTHWEST OF NEW ZEALAND
 608  BASS STRAIT
 609  TASMANIA REGION, AUSTRALIA REGION
 610  SOUTHEAST OF AUSTRALIA
 
 Seismic Region  39
  Pacific Basin                      
 
 611  NORTH PACIFIC OCEAN
 612  HAWAIIAN ISLANDS REGION
 613  HAWAII
 614  E. CAROLINE ISLANDS, MICRONESIA
 615  MARSHALL ISLANDS REGION
 616  ENEWETAK ATOLL REG, MARSHALL IS.
 617  BIKINI ATOLL REG., MARSHALL IS.
 618  GILBERT ISLANDS, KIRIBATI REGION
 619  JOHNSTON ISLAND REGION
 620  LINE ISLANDS REGION, KIRIBATI
 621  PALMYRA ISLAND REGION, KIRIBATI
 622  KIRITIMATI REGION, KIRIBATI
 623  TUVALU REGION
 624  PHOENIX ISLANDS, KIRIBATI REGION
 625  TOKELAU ISLANDS REGION
 626  NORTHERN COOK ISLANDS
 627  COOK ISLANDS REGION
 628  SOCIETY ISLANDS REGION
 629  TUBUAI ISLANDS REGION
 630  MARQUESAS ISLANDS REGION
 631  TUAMOTU ARCHIPELAGO REGION
 632  SOUTH PACIFIC OCEAN
 
 Seismic Region  40
  Arctic Zone                        
 
 633  LOMONOSOV RIDGE
 634  ARCTIC OCEAN
 635  NEAR NORTH COAST OF GREENLAND
 636  EASTERN GREENLAND
 637  ICELAND REGION
 638  ICELAND
 639  JAN MAYEN ISLAND REGION
 640  GREENLAND SEA
 641  NORTH OF SVALBARD
 642  NORWEGIAN SEA
 643  SVALBARD REGION
 644  NORTH OF FRANZ JOSEF LAND
 645  FRANZ JOSEF LAND, RUSSIA
 646  NORTHERN NORWAY
 647  BARENTS SEA
 648  NOVAYA ZEMLYA, RUSSIA
 649  KARA SEA
 650  NEAR COAST OF W. SIBERIA, RUSSIA
 651  NORTH OF SEVERNAYA ZEMLYA
 652  SEVERNAYA ZEMLYA, RUSSIA
 653  NEAR COAST OF C. SIBERIA, RUSSIA
 654  EAST OF SEVERNAYA ZEMLYA, RUSSIA
 655  LAPTEV SEA
 
 Seismic Region  41
  Eastern Asia
 
 656  SOUTHEASTERN SIBERIA, RUSSIA
 657  E. RUSSIA-N.E. CHINA BORDER REG.
 658  NORTHEASTERN CHINA
 659  NORTH KOREA
 660  SEA OF JAPAN
 661  PRIMOR'YE, RUSSIA
 662  SAKHALIN, RUSSIA
 663  SEA OF OKHOTSK
 664  SOUTHEASTERN CHINA
 665  YELLOW SEA
 666  OFF EASY COAST OF EASTERN CHINA
 
 Seismic Region  42
  Northeasterb Asia, Northern Alaska to Greeland   
 
 667  NORTH OF NEW SIBERIAN ISLANDS
 668  NEW SIBERIAN ISLANDS, RUSSIA
 669  EAST SIBERIAN SEA
 670  NEAR N. COAST OF EASTERN SIBERIA
 671  EASTERN SIBERIA, RUSSIA
 672  CHUKCHI SEA
 673  BERING STRAIT
 674  ST. LAWRENCE ISLAND, ALASKA REG.
 675  BEAUFORT SEA
 676  NORTHERN ALASKA
 677  NORTHERN YUKON TERRITORY, CANADA
 678  QUEEN ELIZABETH ISLANDS, CANADA
 679  NW TERRITORIES - NUNAVUT, CANADA
 680  WESTERN GREENLAND
 681  BAFFIN BAY
 682  BAFFIN ISLAND REGION, CANADA
 
 Seismic Region  43
  Southeastern & Antarctic Pacific Ocean  
 
 683  SOUTHEAST CENTRAL PACIFIC OCEAN
 684  SOUTHERN EAST PACIFIC RISE
 685  EASTER ISLAND REGION
 686  WEST CHILE RISE
 687  JUAN FERNANDEZ ISLANDS REGION
 688  EAST OF NORTH ISLAND, N.Z.
 689  CHATHAM ISLANDS, N.Z. REGION
 690  SOUTH OF CHATHAM ISLANDS
 691  PACIFIC-ANTARCTIC RIDGE
< 692  SOUTHERN PACIFIC OCEAN
+ 756  SOUTHEAST OF EASTER ISLAND
 
 Seismic Region  44
  Galapagos Islands Area             
 
< 693  EAST CENTRAL PACIFIC OCEAN
 694  CENTRAL EAST PACIFIC RISE
 695  WEST OF GALAPAGOS ISLANDS
 696  GALAPAGOS ISLANDS REGION
 697  GALAPAGOS ISLANDS, ECUADOR
 698  SOUTHWEST OF GALAPAGOS ISLANDS
 699  SOUTHEAST OF GALAPAGOS ISLANDS
+ 757  GALAPAGOS TRIPLE JUNGTION REGION
 
 Seismic Region  45
  Macquarie Loop                     
 
 700  SOUTH OF TASMANIA
 701  WEST OF MACQUARIE ISLAND
 702  BALLENY ISLANDS REGION
 
 Seismic Region  46
  Andaman Islands to Sumatera        
 
 703  ANDAMAN ISLANDS, INDIA REGION
 704  NICOBAR ISLANDS, INDIA REGION
 705  OFF W COAST OF NORTHERN SUMATERA
 706  NORTHERN SUMATERA, INDONESIA
 707  MALAY PENINSULA
 708  GULF OF THAILAND
 
 Seismic Region  47
  Baluchistan           
 
 709  SOUTHEASTERN AFGHANISTAN
 710  PAKISTAN
 711  SOUTHWESTERN KASHMIR
 712  INDIA-PAKISTAN BORDER REGION
 
 Seismic Region  48
  Hindu Kush and Pamir Area          
 
 713  CENTRAL KAZAKHSTAN
 714  SOUTHEASTERN UZBEKISTAN
 715  TAJIKISTAN
 716  KYRGYZSTAN
 717  AFGHANISTAN-TAJIKISTAN BORD REG.
 718  HINDU KUSH REGION, AFGHANISTAN
 719  TAJIKISTAN-XINJIANG BORDER REG.
 720  NORTHWESTERN KASHMIR
 
 Seismic Region  49
  Northern Eurasia                   
 
 721  FINLAND
 722  NORWAY-RUSSIA BORDER REGION
 723  FINLAND-RUSSIA BORDER REGION
 724  BALTIC-BELARUS-NW RUSSIA REG.
 725  NORTHWESTERN SIBERIA, RUSSIA
 726  NORTHCENTRAL SIBERIA, RUSSIA
 
 Seismic Region  50
  Antarctica                         
 
 727  VICTORIA LAND, ANTARCTICA
 728  ROSS SEA
 729  ANTARCTICA
 

Key

+ New Geographical Region
< Geographical Region Reduced in Size
¬ Geographical Region No Longer in Use