U.S. Geological Survey identifier

Commonwealth of the Norther Mariana Islands identifier

Emergency Management Office, Commonwealth of the Northern Mariana Islands

Northern Mariana Islands Volcanic Activity

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Anatahan Volcano Update for April 22, 2004
Submitted Friday, April 23, 2004 at 0930 local Anatahan time

Seismicity during the past day was relatively high but steady, unchanged from the 4 days before. The seismicity suggests continuing quiet, effusive eruption of a relatively small volume of new lava onto the crater floor. Any steam and ash emissions associated with today's activity are not likely to exceed 3,000 ft (1,000 m). Eruptions to higher altitudes, however, could occur with little or no warning.

Contact persons:
Juan Takai Camacho, Geophysical Seismic Technician, EMO Saipan; tel: (670) 322-9528, fax: (670) 322-7743, email: juantcamacho@hotmail.com
Ramon Chong, Geophysical Instrument Specialist, EMO Saipan; tel: (670) 322-9528, fax: (670) 322-7743, email: rcchongemo@hotmail.com
Frank Trusdell, Geologist, USGS; tel: (808) 967-8812, fax: (808) 967-8890, email: trusdell@usgs.gov

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Last modification: Thursday, 22-Apr-2004 20:07:22 EDT (DAS)