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 3-4, 2004
Submitted Saturday, April 4, 2004 at 1100 local Anatahan time

The moderately intense seismic swarm that began on March 31 continues.  Most events are followed by long tremor-like signals that we believe indicate small steam and (or) ash emissions to altitudes much much less than 3,000 ft (1,000 m), though we have no visual confirmation of such emissions at this time.   

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: Saturday, 03-Apr-2004 20:52:06 EST (DAS)