Weekly Seismicity Report For October 15, 2018 to October 21, 2018

During the week of October 15, 2018, the Alaska Earthquake Center reported 857 earthquakes within the state. The largest earthquake was magnitude 4.5 that occurred on October 14 at 21:19:12 AKST (October 15, 05:19:12 UTC), in Southern Alaska 21 miles WNW of Anchorage.  There is ongoing seismic activity in the Eastern and Western Brooks Range, Kaktovik and  Kodiak offshore aftershocks areas.  Four events were felt. Two of them of M3.4 located in Kenai Peninsula on October 19 were felt in Kenai communities and  as far as greater Anchorage area. 

Notable Events in Descending Order of Magnitude

Magnitude 4.3, 28 miles N of Valdez
Magnitude 4.2, 41 miles SE of Amchitka
Magnitude 4.1, 51 miles SW of Kaktovik
Magnitude 4.1, 62 miles SE of Pump Station #2
Magnitude 4.0, 64 miles N of Arctic Village
Magnitude 3.9, 63 miles SE of Pump Station #2
Magnitude 3.9, 46 miles S of Kaktovik
Magnitude 3.8, 164 miles SE of Kodiak
Magnitude 3.7, 36 miles W of Buldir Island

This report was compiled by N.Kozyreva

The data in this report are preliminary and subject to revision. The earthquake parameters have been determined by the AEC, with supplemental data provided by the USGS National Earthquake Information Center. The data are released on the condition that none of the cooperating agencies may be held liable for any damaged resulting from its authroized or unauthorized use.

For more information on earthquakes and seismology, contact the AEC at (907)-474-7320.