Magnitude: VEI-6
Time: -1645 B.C.
Country: UNITEDSTATES

ALASKAPENINSULA

This volcano erupted on -1645 B.C. in UnitedStates where it released a signifant amount of explosivity , reaching a Volcanic Explosivity Index of 6 (VEI: 6). The VEI scale was developed by the USGS and is open-ended with the largest volcanoes in history given a magnitude 8. A value of 0 is given for non-explosive eruptions . This particular volcano, named Aniakchak is classified as a historical caldera and is perched at an elevation of 1341ft.


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

g - Unconsolidated
Glaciers

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



Latest Volcano Events

Recent Volcano activity from around the globe.



Nearby Tsunamis
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
8.6
mag
ANDREANOFISLANDS,AK
03-09-1957 T14:22:31.9
7.1
mag
FOXISLANDS,ALEUTIANISLANDS,AK
12-31-1901 T09:02:30




Volcano Measurement
volcano scale

Volcano Stats
year -1645
id 13
location AlaskaPeninsula
time -1645 B.C.
latitude 56.88
type Caldera
vei 6
status Historical
elevation 1341
name Aniakchak
longitude -158.17
country UnitedStates

Nearby Earthquakes
4.2
mag
CALIFORNIA:MONTCLAIR
07-20-2007 T11:42:22
7.9
mag
CALIFORNIA:SANFRANCISCO
04-18-1906 T13:12:21
5.5
mag
CALIFORNIA:NORTHERN
02-15-1856
6.3
mag
CALIFORNIA:SANTACRUZ
10-08-1865
6.1
mag
CALIFORNIA:CENTRAL:MORGANHILL
04-24-1984 T21:15:19
5.6
mag
CALIFORNIA:SANJOSE
10-31-2007 T03:04:54
6.9
mag
CALIFORNIA:LOMAPRIETA
10-18-1989 T00:04:15
5.9
mag
CALIFORNIA:LIVERMORE
01-24-1980 T19:00:09
8.2
mag
ALASKA:CAPEYAKATAGA
09-04-1899
7.8
mag
ALASKA:CAPEYAKATAGA
09-10-1899