Magnitude 4.6 ALABAMA
2003 April 29 08:59:39 UTC
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
Magnitude | 4.6 | ||
Date-Time |
Tuesday, April 29, 2003 at 08:59:39 (UTC) - Coordinated Universal Time Tuesday, April 29, 2003 at 03:59:39 AM local time at epicenter Tuesday, April 29, 2003 at 05:59:39 AM (ADT) - Atlantic Daylight Tuesday, April 29, 2003 at 04:59:39 AM (EDT) - Eastern Daylight Tuesday, April 29, 2003 at 04:59:39 AM (AST) - Atlantic Standard Tuesday, April 29, 2003 at 03:59:39 AM (CDT) - Central Daylight Tuesday, April 29, 2003 at 03:59:39 AM (EST) - Eastern Standard Tuesday, April 29, 2003 at 02:59:39 AM (MDT) - Mountain Daylight Tuesday, April 29, 2003 at 02:59:39 AM (CST) - Central Standard Tuesday, April 29, 2003 at 01:59:39 AM (PDT) - Pacific Daylight Tuesday, April 29, 2003 at 01:59:39 AM (MST) - Mountain Standard Tuesday, April 29, 2003 at 12:59:39 AM (AKDT) - Alaska Daylight Monday, April 28, 2003 at 11:59:39 PM (AHDT) - Aleutian Daylight Monday, April 28, 2003 at 10:59:39 PM (HST) - Hawaii |
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Location | 34.494N 85.629W | ||
Depth | 20.0 kilometers | ||
Region | ALABAMA | ||
Reference |
25 km (15 miles) ENE of Fort Payne, Alabama 45 km (30 miles) NW of Rome, Georgia 50 km (30 miles) ESE of Scottsboro, Alabama 255 km (155 miles) NNE of MONTGOMERY, Alabama |
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Location Quality | Error estimate: horizontal +/- 10.3 km; depth fixed by location program | ||
Location Quality Parameters |
Nst=86, Nph=86, Dmin=83.3 km, Rmss=1.71 sec, Erho=10.3 km, Erzz=0 km, Gp=69.4 degrees | ||
Source | USGS NEIC | ||
Remarks | Slight damage (VI) at Fort Payne, Gaylesville and Valley Head. Felt (V) at Bryant, Cedar Bluff, Collinsville, Flat Rock, Fyffe, Geraldine, Henagar, Higdon, Ider, Leesburg, Mentone, Rainsville and Sylvania. Felt in parts of Alabama, Florida, Georgia, Illinois, Indiana, Kentucky, Mississippi, Missouri, North Carolina, Ohio, South Carolina, Tennessee and Virginia. |
TECTONIC SETTING AND SEISMICITY CONTEXT: EASTERN TENNESSEE SEISMIC ZONE
EARTHQUAKES
Earthquakes in the central and eastern U.S., although less frequent, are typically felt over a much broader region than the western U.S. East of the Rockies, an earthquake can be felt in an area as much as ten times greater than a similar magnitude earthquake on the west coast. For example, a magnitude 4.0 eastern U.S. earthquake typically can be felt at many locations as far as 100 km (60 mi) from where it occurred, and it might or might not cause damage near its source. A magnitude 5.5 eastern US earthquake usually can be felt as far as 500 km (300 mi) in most directions and can cause damage out to 40 km (25 mi).
FAULTS
PAST EARTHQUAKES IN ALABAMA
SEISMIC MONITORING IN ALABAMA
IMPACT OF THE QUAKE
PUBLIC RESPONSE TO THE TREMOR
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Did You Feel It?
Theoretical P-Wave Travel Times Earthquake Information for ALABAMA Earthquakes: Frequently Asked Questions
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NB:
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.
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