Magnitude 4.4 SOUTH SANDWICH ISLANDS REGION
Sunday, April 12, 2009 at 12:40:42 UTC
Preliminary Earthquake Report
Magnitude | 4.4 |
---|---|
Date-Time |
Time of Earthquake in other Time Zones |
Location | 60.54S 28.12W |
Depth | 38 kilometers |
Region | SOUTH SANDWICH ISLANDS REGION |
Distances |
195 km (120 miles) SSW of Bristol Island, South Sandwich Islands 430 km (265 miles) S of Visokoi Island, South Sandwich Islands 855 km (530 miles) SSE of Grytviken, South Georgia 3300 km (2050 miles) N of South Pole, Antarctica |
Location Uncertainty | Error estimate: horizontal +/- 22.9 km; depth +/- 39.4 km |
Parameters | Nst=14, Nph=14, Dmin=1663.5 km, Rmss=0.96 sec, Erho=22.9 km, Erzz=39.4 km, Gp=141.9 degrees |
Source | USGS NEIC (WDCS-D) |
Event ID | usfiea |
Location Maps
Did You Feel It?
Theoretical P-Wave Travel Times
Alaska Earthquake Information Center
Earthquakes: Frequently Asked Questions
|
|
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