ALASKA EARTHQUAKE INFORMATION CENTER
MONTHLY SEISMICITY REPORT
SEPTEMBER 2008
During September 2008, the Alaska Earthquake Information Center located 2072
earthquakes within the state. Of these, one was larger than or equal to magnitude
5.0 and seven were larger than or equal to magnitude 4.0. Eight events were felt.
The largest earthquake located in Alaska this month was a moderate earthquake of
magnitude 5.2 that occurred on Sunday, September 14 at 09:41 p.m. AKDT, 89
miles SW of Adak.
The following is a list of significant earthquakes during the time period: September 01 to September 30, 2008:
September 15 at 05:41:44.090 UTC (September 14, 21:41:44.090 AKDT), Ml 5.2, 51.01N -178.20W, depth=26.2 km:
A moderate earthquake was located in ANDREANOF ISLANDS, ALEUTIAN IS..
This earthquake was:
89 miles (144 km) SW of Adak
126 miles (203 km) ESE of Amchitka
190 miles (306 km) WSW of Atka
September 26 at 10:23:41.281 UTC (September 26, 02:23:41.281 AKDT), Ml 4.7, 51.65N -175.19W, depth=32.7 km:
A light earthquake was located in ANDREANOF ISLANDS, ALEUTIAN IS..
This earthquake was:
56 miles ( 91 km) SW of Atka
65 miles (104 km) ESE of Adak
144 miles (232 km) WSW of Amukta Pass
September 18 at 19:43:53.069 UTC (September 18, 11:43:53.069 AKDT), Ml 4.7, 59.50N -152.79W, depth=90.2 km:
A light earthquake was located in SOUTHERN ALASKA. It was felt in the Cook Inlet
region of Alaska. No reports of damage were received.
This earthquake was:
32 miles ( 52 km) WNW of Nanwalek
32 miles ( 52 km) WNW of English Bay
36 miles ( 57 km) WNW of Port Graham
September 6 at 20:22:28.405 UTC (September 6, 12:22:28.405 AKDT), Ml 4.6, 51.10N -178.93W, depth=26.1 km:
A light earthquake was located in ANDREANOF ISLANDS, ALEUTIAN IS..
This earthquake was:
94 miles (151 km) ESE of Amchitka
112 miles (180 km) WSW of Adak
217 miles (348 km) WSW of Atka
September 5 at 18:48:44.621 UTC (September 5, 10:48:44.621 AKDT), Ml 4.5, 53.02N 172.28W, depth=17.3 km:
A light earthquake was located in NEAR ISLANDS, ALEUTIAN ISLANDS.
This earthquake was:
40 miles ( 65 km) W of Attu
80 miles (129 km) WNW of Shemya
160 miles (257 km) WNW of Buldir Is
September 24 at 12:19:52.928 UTC (September 24, 04:19:52.928 AKDT), Ml 4.3, 63.44N -150.06W, depth=6.6 km:
A light earthquake was located in CENTRAL ALASKA. It was felt in Fairbanks and Healy.
No reports of damage were received.
This earthquake was:
28 miles ( 45 km) ESE of Kantishna
35 miles ( 56 km) W of Cantwell
37 miles ( 59 km) WSW of Denali Park
September 4 at 17:55:53.617 UTC (September 4, 09:55:53.617 AKDT), Ml 4.3, 53.05N -166.72W, depth=25.2 km:
A light earthquake was located in FOX ISLANDS, ALEUTIAN ISLANDS.
This earthquake was:
57 miles ( 92 km) S of Unalaska
59 miles ( 94 km) S of Dutch Harbor
84 miles (136 km) SSW of Akutan
September 25 at 19:34:09.042 UTC (September 25, 11:34:09.042 AKDT), Ml 4.1, 63.86N -148.80W, depth=10.0 km:
A light earthquake was located in CENTRAL ALASKA. It was felt in Healy, Denali Park,
Cantwell, Nenana and Fairbanks. No reports of damame were received.
This earthquake was:
5 miles ( 8 km) E of Healy
21 miles ( 35 km) N of Denali Park
33 miles ( 53 km) N of Cantwell
This report was compiled by N.Kozyreva.
The data in this report are preliminary and subject to revision. Most of the earthquake parameters have been
determined by AEIC, with supplemental data provided by the U.S.G.S. National Earthquake Information
Center, Box 25046, Denver Federal Center MS 967, Denver, CO 80225. The data are released on the
condition that none of the cooperating agencies may be held liable for any damages resulting from its
authorized or unauthorized use.
For more information on earthquakes and seismology, contact the AEIC at (907)-474-7320.