19 JUL 2007 (200)
ot = 21:07:19.49 +/- 0.85 TANZANIA
lat = -2.817 +/- 19.9
lon = 36.172 +/- 29.2 MAGNITUDE 4.0 (GS)
dep = 10.0 (geophysicist)
85 km (50 miles) NW of Arusha, Tanzania (pop 102,000)
185 km (115 miles) SSW of NAIROBI, Kenya
280 km (175 miles) S of Nakuru, Kenya
565 km (350 miles) NW of DAR ES SALAAM, Tanzania
Felt at Nairobi.
nph = 6 of 8 se = 0.86 FE=573 C
error ellipse = (122.7, 0.0, 45.5;212.7, 0.0, 11.8; 0.0, 0.0, 0.0)
mb = 4.0 ( 3) ML = 4.5 ( 1) mblg = 4.5 ( 2) md = 4.8 ( 1) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
KMBO ePn 21:07:53.30 -0.2 2.0 33 d:2.9+2 4.8 L:7.8+0 .45 4.5 KMBO
eSn 21:08:17.64 S res = -1.1X g:2.7+0 .70 4.6
LSZ ePn 21:10:46.48 -0.9 14.7 212 g:1.4-1 .95 4.4 LSZ
eSn 21:13:20.72 S res = -9.5X
TSUM eP 21:12:37.85 -0.6 24.4 227 b:2.8+0 .94 3.9 TSUM
LBTB eP 21:12:38.03 0.6 24.3 204 b:3.5+0 .86 4.0 LBTB
BOSA eP 21:13:08.57 0.6 27.7 201 b:3.0+0 .73 4.1 BOSA
SHEL qP 21:15:22.27 0.6 43.3 250 b:8.6+1 .90 5.5X SHEL
Generated 2007 JUL 25 at 15:09 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
