Volcanoes of the Northern Mariana Islands
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Agrigan
- Current Update: An earthquake was reported felt on Agrigan island at 3:49 pm July 16 local time. About 3 seconds of shaking was reported by a local resident. Seismometers on Sarigan and Anatahan recorded the earthquake and allowed estimation the magnitude at approximately 3.3. No sulfur smell or any other signs of volcanic activity were reported on July 16 or in a followup call on July 17.
Volcanic History Overview: The highest of the Marianas arc volcanoes, Agrigan contains a 500-m-deep, flat-floored caldera and sits on top of a massive 4000-m-high submarine volcano, the second largest in the Marianas Islands.Location: Mariana Islands, Mariana Islands
Latitude: 18.77
Longitude: 145.67
Elevation: 965 m
Recent Eruption: 1917- Hazard Assessments:
- Link to monitoring data:
Volcanic Alert Level: UNASSIGNED Aviation Color Code: UNASSIGNED
