Magnitude 5.7 SAMOA ISLANDS REGION
Friday, July 06, 2007 at 17:40:48 UTC
Preliminary Earthquake Report
| Magnitude | 5.7 |
|---|---|
| Date-Time |
Time of Earthquake in other Time Zones |
| Location | 16.38S 172.69W |
| Depth | 6.4 kilometers |
| Region | SAMOA ISLANDS REGION |
| Distances |
125 km (75 miles) ESE of Hihifo, Tonga 285 km (180 miles) NNE of Neiafu, Tonga 590 km (365 miles) NNE of NUKU'ALOFA, Tonga 2580 km (1600 miles) NNE of Auckland, New Zealand |
| Location Uncertainty | Error estimate: horizontal +/- 10.5 km; depth +/- 57.1 km |
| Parameters | Nst=175, Nph=175, Dmin=2634.7 km, Rmss=1.06 sec, Erho=10.5 km, Erzz=57.1 km, Gp=46.4 degrees |
| Source | USGS NEIC (WDCS-D) |
| Event ID | usela4 |
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Earthquakes: Frequently Asked Questions
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The earthquake locations and magnitudes cited in these bulletins are very preliminary, and may disagree with the more accurate USGS locations and magnitudes computed using more extensive data sets.
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NB:
The official magnitude for this earthquake is indicated at the top of this page.
This was the best available estimate of the earthquake's size,
at the time that this page was created. Other magnitudes associated
with web pages linked from here are those determined at various times
following the earthquake with different types of seismic data.
Although, given the data used, they are legitimate estimates of magnitude
they are not considered the official magnitude.
The region name is an automatically generated name
from the Flinn-Engdahl (F-E) seismic and geographical regionalization scheme.
The boundaries of
these regions are defined at one-degree intervals and therefore differ from
irregular political boundaries.
More->
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
