Northern Mariana Islands Recent Status Report, Updates, and Information Releases
Friday, July 4, 2008 07:57 MPT (Thursday, July 3, 2008 21:57 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
Report prepared by the U.S. Geological Survey.
USGS has received no reports of ash emissions, gas plumes, or other activity at Anatahan over the past week. USGS continues to monitor the volcano using seismic and satellite information.
It remains possible that some gas emission and steaming may occur intermittently and that during times of northerly winds, the Anatahan plume, if present, could be directed towards the CNMI and Guam. If this happens, residents may notice hazy air conditions and smell sulfur. The Emergency Management Office (EMO) of the CNMI government will issue volcanic haze and sulfur advisories if appropriate.
Access to the island may be restricted by the CNMI government. Contact the EMO to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Tuesday, July 1, 2008 11:01 MPT (Tuesday, July 1, 2008 01:01 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
Report prepared by the U.S. Geological Survey.
USGS has received no reports of ash emissions, gas plumes, or other activity at Anatahan over the past week. USGS continues to monitor the volcano using seismic and satellite information.
It remains possible that some gas emission and steaming may occur intermittently and that during times of northerly winds, the Anatahan plume, if present, could be directed towards the CNMI and Guam. If this happens, residents may notice hazy air conditions and smell sulfur. The Emergency Management Office (EMO) of the CNMI government will issue volcanic haze and sulfur advisories if appropriate.
Access to the island may be restricted by the CNMI government. Contact the EMO to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Friday, June 13, 2008 07:54 MPT (Thursday, June 12, 2008 21:54 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
Report prepared by the U.S. Geological Survey.
Low level seismic activity characteristic of what is considered background seismicity continues at Anatahan. USGS has received no recent reports of ash emissions, gas plumes, or other activity over the past week. It is not known if the present quiet period represents merely a lull in the eruptive activity that began in 2003 or the cessation of eruptive activity and the end of the most recent eruptive cycle. USGS continues to monitor the volcano using seismic and satellite information.
It remains possible that some gas emission and steaming may occur intermittently and that during times of northerly winds, the Anatahan plume, if present, could be directed towards the CNMI and Guam. If this happens, residents may notice hazy air conditions and smell sulfur. The Emergency Management Office (EMO) of the CNMI government will issue volcanic haze and sulfur advisories if appropriate.
Access to the island may be restricted by the CNMI government. Contact the EMO to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Saturday, June 7, 2008 03:09 MPT (Friday, June 6, 2008 17:09 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
Report prepared by the U.S. Geological Survey.
Low level seismic activity characteristic of what is considered background seismicity continues at Anatahan. USGS has received no recent reports of ash emissions, gas plumes, or other activity over the past week. It is not known if the present quiet period represents merely a lull in the eruptive activity that began in 2003 or the cessation of eruptive activity and the end of the most recent eruptive cycle. USGS continues to monitor the volcano using seismic and satellite information.
It remains possible that some gas emission and steaming may occur intermittently and that during times of northerly winds, the Anatahan plume, if present, could be directed towards the CNMI and Guam. If this happens, residents may notice hazy air conditions and smell sulfur. The Emergency Management Office (EMO) of the CNMI government will issue volcanic haze and sulfur advisories if appropriate.
Access to the island may be restricted by the CNMI government. Contact the EMO to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Friday, May 23, 2008 11:11 MPT (Friday, May 23, 2008 01:11 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
Report prepared by the U.S. Geological Survey.
On Tuesday May 20, the Aviation Color Code and Alert Level for Anatahan were lowered to Green and Normal based on continued low levels of seismic activity and no recent reports of ash or gas plumes. Whether this quiet represents merely a lull in the eruptive activity that began in 2003 or the cessation of this eruption is unknown. We continue to monitor the volcano.
Some gas emission and steaming may still occur. During more northerly winds, the Anatahan plume will be blown towards CNMI and Guam and may be experienced as a sulfur-scented haze. The Emergency Management Office (EMO) of the CNMI government will issue a volcanic haze and sulfur advisory when appropriate.
Access to the island may be restricted by the CNMI government. Contact the EMO to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Tuesday, May 20, 2008 09:57 MPT (Monday, May 19, 2008 23:57 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
Report prepared by the U.S. Geological Survey.
The Aviation Color Code and Alert Level for Anatahan are lowered to Green and Normal. Seismicity has been relatively quiet since last month and there have been no reports of ash or gas plumes. Whether this quiet represents merely a lull in the eruptive activity that began in 2003 or the cessation of this eruption is unknown. If it is a lull, activity could with little warning resume.
Some gas emission and steaming may still occur. During more northerly winds, the Anatahan plume will be blown towards CNMI and Guam and may be experienced as a sulfur-scented haze. The Emergency Management Office (EMO) of the CNMI government will issue a volcanic haze and sulfur advisory when appropriate.
Access to the island may be restricted by the CNMI government. Contact the EMO to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Sunday, May 11, 2008 04:21 MPT (Saturday, May 10, 2008 18:21 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
Seismic activity at Anatahan has remained low over the past week and consists primarily of low-amplitude tremor. USGS has received no new reports or observations of ash or gas emissions from the volcano. The volcano appears to have entered a quiescent period but it is still possible for more vigorous activity, including gas and ash emissions, to resume with little warning. USGS continues to monitor the volcano closely.
Although the level of unrest has remained low for several weeks, access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office for the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Friday, April 25, 2008 09:24 MPT (Thursday, April 24, 2008 23:24 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
Seismic activity at Anatahan has remained low over the past week and consists primarily of low-amplitude tremor. USGS has received no new reports or observations of ash or gas emissions from the volcano. The volcano appears to have entered a quiescent period but it is still possible for more vigorous activity, including gas and ash emissions, to resume with little warning. USGS continues to monitor the volcano closely.
Although the level of unrest has remained low for several weeks, access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office for the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Friday, April 18, 2008 10:46 MPT (Friday, April 18, 2008 00:46 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
Seismic activity at Anatahan has remained low over the past week and consists primarily of low-amplitude tremor. USGS has received no new reports or observations of ash or gas emissions from the volcano. The volcano appears to have entered a quiescent period but it is still possible for more vigorous activity, including gas and ash emissions, to resume with little warning. USGS continues to monitor the volcano closely.
Although the level of unrest has remained low for several weeks, access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office for the latest information.
A number of large earthquakes have occurred 70 to 110 km (43 to 68 miles) WSW of Anatahan Volcano over the past week. Calculated magnitudes for these events have ranged from 4.0 to 5.5. These earthquakes are unrelated to Anatahan Volcano. Further information on these earthquakes is available at http://earthquake.usgs.gov/eqcenter/
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Friday, April 11, 2008 10:58 MPT (Friday, April 11, 2008 00:58 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
Seismic activity at Anatahan has remained low over the past week and consists primarily of low-amplitude tremor. USGS has received no new reports or observations of ash or gas emissions from the volcano. The volcano appears to have entered a quiescent period but it is still possible for more vigorous activity, including gas and ash emissions, to resume with little warning. USGS continues to monitor the volcano closely.
Although the level of unrest has remained low for several weeks, access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office for the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Saturday, April 5, 2008 07:08 MPT (Friday, April 4, 2008 21:08 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
Seismic activity at Anatahan has remained at a low level over the past week and consists primarily of low-amplitude tremor. There have been no reports or indications of ash or gas emissions from the volcano. Although unrest continues, eruptive activity appears to have ceased. It is still possible for more vigorous activity, including gas and ash emissions, to resume with little warning.
Although the level of unrest has declined, access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office for the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Wednesday, April 2, 2008 10:48 MPT (Wednesday, April 2, 2008 00:48 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
Seismic activity has remained at a low level over the past 24 hours and there have been no reports or indications of ash or gas venting from the volcano. Eruptive activity appears to have ceased, although it is possible for unrest to resume with little warning.
Because volcanic activity has declined and there have been no reports of gas or ash emissions, USGS will cease its daily reporting of activity at Anatahan. USGS will continue to monitor the volcano closely and will resume daily status reporting if conditions change and require us to increase the alert level and color code. USGS will issue a weekly update, Friday of each week, that summarizes information about volcanic unrest obtained throughout the week.
Although volcanic activity has declined, access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office for the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Tuesday, April 1, 2008 10:40 MPT (Tuesday, April 1, 2008 00:40 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
Seismic activity has remained low over the past 24 hours and there have been no reports or indications of ash or gas venting from the volcano. Eruptive activity at the volcano has likely ceased or is in a lull, but could resume with little warning.
Access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
Monday, March 31, 2008 05:45 MPT (Sunday, March 30, 2008 19:45 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: ADVISORY
Aviation Color Code: YELLOW
Report prepared by the U.S. Geological Survey.
The Aviation Color Code for Anatahan is lowered from Orange to Yellow and the Volcano Alert level is lowered from Watch to Advisory.
Seismic activity has remained low for several days and there have been no reports or indications of ash or gas venting from the volcano. Eruptive activity at the volcano has likely ceased or is in a lull. Activity, however, could resume with little warning.
Access to the island may be restricted by the CNMI government. Please contact the Emergency Management Office to get the latest information.
USGS contact information: duty scientist (808) 967-8815 http://volcano.wr.usgs.gov/cnmistatus.php
