Magnitude: 8.6M
Time: 03-09-1957 T14:22:31
Country: USA

ALASKA

This earthquake was recorded at a focal depth of 33km below the ground in Usa on 03-09-1957 T14:22:31, where it released a sizeable amount of seismic energy and reached a magnitude of 8.6 on the richter scale. Considering this quake occurred 33km under the surface, it is best classified as a deep geologic event. An earthquake of this magnitude would likely be causing destruction to well-built wooden structures; most masonry and frame structures with foundations would be destroyed. Expect rails to be bent, bridges detroyed, and loss of life.
More events from USA




Surface Geology

Underlying geological composition for the surrounding area.

Alaska Peninsula and Aleutian Islands - porphyry copper
Tertiary felsic to intermediate composition intrusions of the Alaska Peninsula and Aleutian Islands
Pacific Margin - porphyry copper
Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia.

Surface Lithology

w - None
Water

Related USGS Publications

70159748 - 2016 - Unusually large tsunamis frequent a currently creeping part of the Aleutian megathrust
70143609 - 2015 - Geomorphic Consequences of Volcanic Eruptions in Alaska: A Review



Latest Earthquake Events

Recent Earthquake activity from around the globe.



Nearby Tsunamis
6.7
mag
GULFOFALASKA,AK
09-27-1949 T15:30:45
6
mag
GULFOFALASKA,AK
02-23-1925 T23:53:36
8.2
mag
CAPEYAKATAGA,AK
09-04-1899 T00:22:00
8.2
mag
YAKUTATBAY,AK
09-10-1899 T21:41:00
6.9
mag
PRINCEWILLIAMSOUND,AK
09-22-1911 T05:01:24
7.5
mag
SE.ALASKA,AK
02-28-1979 T21:27:8.1
6
mag
PRINCEWILLIAMSOUND,AK
02-14-1908 T11:25:00
9.2
mag
PRINCEWILLIAMSOUND,AK
03-28-1964 T03:36:14
7.8
mag
FOXISLANDS,ALEUTIANISLANDS,AK
03-07-1929 T01:34:37.9
7.1
mag
ANDREANOFISLANDS,AK
05-02-1971 T06:08:27.8




Earthquake Measurement
earthquake scale

Earthquake Stats
region_code 150
focal_depth 33
total_deaths 2
total_deaths_description 1
year 1957
eq_mag_ms 9.1
eq_mag_mw 8.6
id 4116
location_name ALASKA
total_damage_description 3
damage_description 1
eq_primary 8.6
state AK
time 03-09-1957 T14:22:31
latitude 51.292
total_injuries 1
total_injuries_description 1
longitude -175.629
country USA

Nearby Earthquakes
6.1
mag
HAWAIIANISLANDS:PUNADISTRICT
06-26-1989 T03:27:03
6.9
mag
HAWAIIANISLANDS:PUNADISTRICT
05-04-2018 T22:32:55
7.7
mag
HAWAII
11-29-1975 T14:47:40
6.7
mag
HAWAIIANISLANDS
10-15-2006 T17:07:49
6.5
mag
HAWAII:HILO
04-26-1973 T20:26:28
7.0
mag
HAWAIIANISLANDS
02-20-1871
6.8
mag
HAWAII
09-21-1908
7.9
mag
HAWAII:SEOF
04-03-1868
7.9
mag
ALASKA:ANDREANOFISLANDS
02-14-1905
8.6
mag
ALASKA
03-09-1957 T14:22:31