Magnitude: 8.7M
Time: 02-04-1965 T05:01:21
Country: USA

ALASKA:ALEUTIANISLANDS:RATISLANDS

This earthquake was recorded at a focal depth of 36km below the ground in Usa on 02-04-1965 T05:01:21, where it released a sizeable amount of seismic energy and reached a magnitude of 8.7 on the richter scale. Considering this quake occurred 36km under the surface, it is best classified as a deep geologic event. Earthquake intensity was also measured using the Mercalli intensity scale which quantifies the severity of shaking felt by the quake. On a scale of 1 (barely sensed) to 12 (completely devastating), this quake had an intensity of 6. 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.

Related USGS Publications

70159748 - 2016 - Unusually large tsunamis frequent a currently creeping part of the Aleutian megathrust
70142817 - 2015 - Basement and regional structure along strike of the Queen Charlotte Fault in the context of modern and historical earthquake ruptures
sir20155110 - 2015 - 2013 volcanic activity in Alaska: summary of events and response of the Alaska Volcano Observatory
70143609 - 2015 - Geomorphic Consequences of Volcanic Eruptions in Alaska: A Review



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Earthquake Measurement
earthquake scale

Earthquake Stats
region_code 150
eq_mag_mb 7.7
focal_depth 36
intensity 6
year 1965
eq_mag_ms 7.8
eq_mag_mw 8.7
id 4337
location_name ALASKA:ALEUTIANISLANDS:RATISLANDS
total_damage_description 1
damage_description 1
eq_primary 8.7
state AK
time 02-04-1965 T05:01:21
latitude 51.290
total_damage_millions_dollars .010
longitude 178.550
country USA

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