Weekly Seismicity Report For
March 13, 2017 to March 19, 2017

During the week of March 13, 2017, the Alaska Earthquake Center reported 707 earthquakes within the state. The largest earthquake was magnitude 5.3 that occurred on March 15 at 22:19:40.693 UTC (March 15, 14:19:40.693 AKDT), 32 miles S of Amchitka. Two events were felt.

Notable Events in Descending Order of Magnitude

 March 15 at 22:19:40.693 UTC (March 15, 14:19:40.693 AKDT), Ml 5.3, 51.07N 179.07W, depth=18.0 km:

   A moderate earthquake was located in RAT ISLANDS, ALEUTIAN ISLANDS.

    This earthquake was:

   32 miles ( 51 km)   S of Amchitka

  161 miles (259 km) ESE of Buldir Is

  192 miles (309 km) WSW of Adak

  239 miles (385 km) ESE of Shemya

 

 March 14 at 21:01:09.374 UTC (March 14, 13:01:09.374 AKDT), Ml 4.9, 52.10N -170.41W, depth=24.1 km:

   A light earthquake was located in FOX ISLANDS, ALEUTIAN ISLANDS.

    This earthquake was:

   69 miles (112 km) ESE of Amukta Pass

   87 miles (140 km)  SW of Nikolski

  161 miles (259 km)   E of Atka

  202 miles (326 km)  SW of Unalaska

 

 March 15 at 21:47:13.918 UTC (March 15, 13:47:13.918 AKDT), Ml 4.8, 51.07N 179.04W, depth=19.4 km:

   A light earthquake was located in RAT ISLANDS, ALEUTIAN ISLANDS.

    This earthquake was:

   32 miles ( 51 km)   S of Amchitka

  160 miles (257 km) ESE of Buldir Is

  193 miles (311 km) WSW of Adak

  239 miles (384 km) ESE of Shemya

 

 March 16 at 07:55:45.160 UTC (March 15, 23:55:45.160 AKDT), Ml 4.4, 57.02N -154.17W, depth=43.2 km:

   A light earthquake was located in KODIAK ISLAND REGION, ALASKA.

    This earthquake was:

    5 miles (  9 km)   N of Akhiok

   35 miles ( 56 km) WSW of Old Harbor

   37 miles ( 59 km) SSW of Larsen Bay

   40 miles ( 64 km) SSE of Karluk

 

 March 16 at 03:41:04.661 UTC (March 15, 19:41:04.661 AKDT), Ml 4.1, 52.48N 172.82W, depth=37.0 km:

   A light earthquake was located in NEAR ISLANDS, ALEUTIAN ISLANDS.

    This earthquake was:

   36 miles ( 58 km) SSW of Attu

   57 miles ( 92 km) WSW of Shemya

  131 miles (211 km)   W of Buldir Is

  271 miles (436 km) WNW of Amchitka

 

 March 18 at 09:01:26.694 UTC (March 18, 01:01:26.694 AKDT), Ml 4.1, 56.69N -157.99W, depth=87.4 km:

   A light earthquake was located in ALASKA PENINSULA.

    This earthquake was:

   31 miles ( 49 km)  NE of Chignik Lagoon

   31 miles ( 49 km) ESE of Port Heiden

   32 miles ( 51 km) NNE of Chignik

   62 miles (100 km) SSW of Pilot Point

 

 March 14 at 11:27:19.331 UTC (March 14, 03:27:19.331 AKDT), Ml 3.9, 50.29N 176.98W, depth=10.6 km:

   A minor earthquake was located in RAT ISLANDS, ALEUTIAN ISLANDS.

    This earthquake was:

  123 miles (198 km)  SW of Amchitka

  150 miles (241 km) SSE of Buldir Is

  208 miles (334 km)  SE of Shemya

  244 miles (392 km)  SE of Attu

 

 March 17 at 07:47:31.160 UTC (March 16, 23:47:31.160 AKDT), Ml 3.7, 61.94N -149.24W, depth=3.3 km:

   A minor earthquake was located in SOUTHERN ALASKA.

   This event was felt in Anchorage and Mat-Su Valley.

    This earthquake was:

   12 miles ( 19 km)   N of Hatcher Pass

   20 miles ( 32 km)  NW of Sutton

   24 miles ( 39 km)   N of Palmer

   26 miles ( 42 km) NNE of Wasilla

 

 March 15 at 17:20:21.539 UTC (March 15, 09:20:21.539 AKDT), Ml 3.7, 53.19N -161.29W, depth=8.6 km:

   A minor earthquake was located in SOUTH OF ALASKA.

    This earthquake was:

  135 miles (218 km) SSE of King Cove

  143 miles (231 km)  SE of False Pass

  149 miles (240 km) SSE of Cold Bay

  152 miles (244 km) SSW of Sand Point

 

 March 17 at 15:02:03.071 UTC (March 17, 07:02:03.071 AKDT), Ml 3.7, 67.90N -166.55W, depth=11.2 km:

   A minor earthquake was located in BERING STRAIT.

    This earthquake was:

   31 miles ( 51 km) SSE of Point Hope

   54 miles ( 87 km) WNW of Kivalina

   97 miles (156 km) WNW of Noatak

   97 miles (156 km)   W of Red Dog Mine site

 

 March 17 at 04:11:46.289 UTC (March 16, 20:11:46.289 AKDT), Ml 3.5, 54.87N -160.31W, depth=6.0 km:

   A minor earthquake was located in ALASKA PENINSULA.

    This earthquake was:

   33 miles ( 53 km) SSE of Sand Point

   80 miles (129 km)   E of King Cove

   85 miles (137 km) SSW of Perryville

   86 miles (138 km) SSE of Nelson Lagoon

 

 March 18 at 16:19:10 UTC (March 18, 08:19 AM AKDT), Ml 3.3, 61.5N -148.05W, depth=15.0 km:

   A minor earthquake was located in the Prince William Sound region of Alaska.

   This event was felt in Anchorage.

    This earthquake was:

   28 miles ( 45 km) ESE of Sutton

   34 miles ( 54 km)   E of Palmer

   43 miles ( 68 km) ESE of Hatcher Pass

   45 miles ( 72 km)   E of Wasilla

 

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.