Anatahan Volcano Update
Anatahan Volcano Update for April 12, 2004
Submitted Tuesday, April 13, 2004 at 0430 local Anatahan time
For the past day, Anatahan volcanic seismicity has been quite high,
though not quite as high as during its peak on April 6-7, the highest
level since the eruptions of May-June 2003. The presence of a new lava
dome within a crescent-shaped crater lake has now been confirmed. Fresh
ejecta within the lowest reaches of the crater has also been confirmed.
Steam and (or) ash emissions are likely occurring to altitudes of less
than 3,000 ft (1,000 m) but could increase in height relatively abruptly
without much 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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