Anatahan Volcano Update
Anatahan Volcano Update for April 4, 2004
Submitted Monday, April 5, 2004 at 1000 local Anatahan time
For the past day, Anatahan volcanic seismicity has
been the highest since the eruption of May-June 2003,
with events as large as M ~2.5 usually followed by tremor-like signals
that we believe indicate steam
and/or ash emissions. This activity peaked between 0200 and 0317
UT with events as often as every 2
minutes, then abruptly dropped to very low levels and
has remained very low to the time of this report.
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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