Magnitude 4.8 NORTHERN MID-ATLANTIC RIDGE
Thursday, September 04, 2008 at 18:47:55 UTC
Preliminary Earthquake Report
| Magnitude | 4.8 |
|---|---|
| Date-Time |
Time of Earthquake in other Time Zones |
| Location | 30.18N 42.57W |
| Depth | 10 kilometers |
| Region | NORTHERN MID-ATLANTIC RIDGE |
| Distances |
1470 km (910 miles) SW of Santa Cruz das Flores, Azores, Portugal 1575 km (980 miles) WSW of Horta, Azores, Portugal 2880 km (1790 miles) ESE of BOSTON, Massachusetts 3195 km (1980 miles) W of LISBON, Portugal |
| Location Uncertainty | Error estimate: horizontal +/- 20.4 km; depth fixed by location program |
| Parameters | Nst=53, Nph=53, Dmin=3745.9 km, Rmss=1.15 sec, Erho=20.4 km, Erzz=0 km, Gp=147.7 degrees |
| Source | USGS NEIC (WDCS-D) |
| Event ID | uswnb1 |
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Earthquakes: Frequently Asked Questions
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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
