Volcano profile

United States

Alamagan.

Volcano profile for Alamagan in United States, including its current status, catalog data, nearby earthquakes and live map layers.

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Current status
No current eruption report
Volcano type
Stratovolcano
Elevation
744 m
Last documented eruption
870
Coordinates
17.6°, 145.83°
GVP number
284180

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Live map around Alamagan

Satellites & ash clouds

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No current eruption report

United States

Alamagan

Stratovolcano

Elevation
744 m
Last documented eruption
870
No current eruption report

No current report does not mean extinct or safe. Source coverage varies between volcanoes.

Geography & tectonics
Coordinates
17.6°, 145.83°
Volcanic region (GVP)
Mariana Volcanic Arc
Tectonic setting
Subduction zone / Crustal thickness unknown
GVP
284180
Documented eruptions · Nearby earthquakes ↓

Source: Smithsonian Global Volcanism Program

This display is not an official warning. Follow information from the responsible authorities when making local decisions.

Profile

Alamagan · United States

Documented eruptions

Latest catalogue records. Historical records are incomplete; missing values are unknown. VEI describes eruption explosivity.

StartEndVEIReport status
29 Nov 1887Not available—Uncertain eruption
16 Jan 1864Not available—Uncertain eruption
870Uncertain datingNot available4Confirmed eruption
540Uncertain datingNot available—Confirmed eruption

Source: Smithsonian GVP · Dataset date: 2026-09-21

Nearby earthquakes

Last 7 days · 100 km · up to 10 events. Proximity does not establish a volcanic cause.

  • No recorded events in this selection.
Nearby earthquakes ↗

QuakeMap24

Volcano at a glance

Map view with the current report status and volcano elevation.

Alamagan · No current eruption report · 744 m

Active volcanoes

Active volcanoes

Other volcanoes with a current eruption report.

Eruption reportedAiraJapanCaldera · 1,117 mEruption reportedDukonoIndonesiaVolcanic complex · 1,273 mEruption reportedGreat SitkinUnited StatesStratovolcano · 1,740 mEruption reportedIbuIndonesiaStratovolcano · 1,357 mEruption reportedKanlaonPhilippinesStratovolcano · 2,422 mEruption reportedKarangetangIndonesiaStratovolcano · 1,797 mEruption reportedKlyuchevskoyRussiaStratovolcano · 4,754 mEruption reportedKrakatauIndonesiaCaldera · 285 m

QuakeMap24

Sources & data dates

Core data comes from the Smithsonian Global Volcanism Program and USGS. Map layers and live aircraft are loaded from the sources identified on the page.

This display is not an official warning. Follow information from the responsible authorities when making local decisions.

VAAC / NOAA NWS

Satellite layers · Last successful retrieval: Sep 21, 2026, 2:08 PM UTC