Weekly Seismicity Report For November 20, 2017 to November 26, 2017

During the week of November 20, 2017, the Alaska Earthquake Center reported 603 earthquakes within the state. The largest earthquake was magnitude 4.4 that occurred on November 22 at 17:38:20.277 UTC (November 22, 08:38:20.277 AKST), 23 miles S of Akutan. One event was felt.

Notable Events in Descending Order of Magnitude


November 22 at 17:38:20.277 UTC (November 22, 08:38:20.277 AKST), Ml 4.4, 53.81N -165.68W, depth=62.2 km:
A light earthquake was located in FOX ISLANDS, ALEUTIAN ISLANDS.
This event was felt in Unalaska.
This earthquake was:
23 miles ( 37 km) S of Akutan
35 miles ( 56 km) E of Dutch Harbor
35 miles ( 57 km) E of Unalaska
116 miles (187 km) SW of False Pass

November 21 at 21:02:11.658 UTC (November 21, 12:02:11.658 AKST), Ml 4.3, 55.10N -157.83W, depth=38.6 km:
A light earthquake was located in ALASKA PENINSULA.
This earthquake was:
76 miles (122 km) SE of Perryville
85 miles (137 km) SSE of Chignik
90 miles (145 km) SSE of Chignik Lagoon
106 miles (171 km) E of Sand Point

November 22 at 06:48:58.769 UTC (November 21, 21:48:58.769 AKST), Ml 4.2, 52.69N -168.32W, depth=44.1 km:
A light earthquake was located in FOX ISLANDS, ALEUTIAN ISLANDS.
This earthquake was:
28 miles ( 46 km) SE of Nikolski
110 miles (177 km) SW of Unalaska
111 miles (179 km) SW of Dutch Harbor
145 miles (233 km) SW of Akutan

November 26 at 06:07:27.633 UTC (November 25, 21:07:27.633 AKST), Ml 4.1, 51.90N -170.46W, depth=1.9 km:
A light earthquake was located in FOX ISLANDS, ALEUTIAN ISLANDS.
This earthquake was:
73 miles (117 km) ESE of Amukta Pass
98 miles (158 km) SW of Nikolski
160 miles (258 km) E of Atka
213 miles (342 km) SW of Unalaska

November 24 at 03:40:03.431 UTC (November 23, 18:40:03.431 AKST), Ml 3.5, 56.15N -161.74W, depth=224.8 km:
A minor earthquake was located in ALASKA PENINSULA.
This earthquake was:
23 miles ( 37 km) WNW of Nelson Lagoon
74 miles (120 km) NW of Sand Point
77 miles (124 km) NNE of Cold Bay
79 miles (127 km) NNE of King Cove

November 25 at 00:52:58.983 UTC (November 24, 15:52:58.983 AKST), Ml 3.5, 52.30N -178.50W, depth=281.6 km:
A minor earthquake was located in ANDREANOF ISLANDS, ALEUTIAN IS..
This earthquake was:
84 miles (135 km) WNW of Adak
119 miles (192 km) ENE of Amchitka
182 miles (293 km) W of Atka
235 miles (379 km) E of Buldir Is

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 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 damages resulting from its authorized or unauthorized use.

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