Northern Mariana Islands Recent Status Report, Updates, and Information Releases
Report prepared by the U.S. Geological Survey.
Short bursts of low-level tremor were observed this week, but overall, seismicity has remained low. Nothing unusual was observed in satellite images obtained throughout the week. No reports of eruptive activity or other unusual volcanic phenomena at Anatahan were received this week.
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.
Report prepared by the U.S. Geological Survey.
Short bursts of low-level tremor were observed earlier this week, but since then seismicity has remained at background levels. Nothing unusual was observed in satellite images obtained throughout the week. No reports of eruptive activity or other unusual volcanic phenomena at Anatahan were received this week.
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.
Report prepared by the U.S. Geological Survey.
Several short bursts of tremor were observed over the past several days. Nothing unusual was observed in satellite images and no reports of eruptive activity of Anatahan were received this week.
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.
Report prepared by the U.S. Geological Survey.
There have been no reports of eruptive activity of Anatahan this week.
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.
Monday, October 6, 2008 05:56 MPT (Sunday, October 5, 2008 19:56 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 Oct. 1 the aviation color code at Anatahan volcano was lowered from Yellow to Green and the alert level lowered from Advisory to Normal. There have been no reports of eruptive activity.
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
Wednesday, October 1, 2008 08:31 MPT (Tuesday, September 30, 2008 22:31 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 at Anatahan volcano is lowered from Yellow to Green and the alert level lowered from Advisory to Normal. Seismicity has remained low for awhile and there have been no recent reports of significant plumes.
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, September 19, 2008 12:24 MPT (Friday, September 19, 2008 02:24 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.
Seismicity remains low with periodic low-amplitude tremor bursts lasting 30 seconds to 90 minutes occurring this week. No plumes have been reported.
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, September 5, 2008 08:04 MPT (Thursday, September 4, 2008 22:04 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.
Seismicity remains low with periodic low-amplitude tremor bursts lasting 30 seconds to 30 minutes occurring this week. No plumes have been reported.
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, August 29, 2008 10:07 MPT (Friday, August 29, 2008 00:07 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.
Seismicity remains low with periodic low-amplitude tremor bursts lasting 30 seconds to 60 minutes occurring this week. No plumes have been reported.
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, August 22, 2008 09:08 MPT (Thursday, August 21, 2008 23:08 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.
Seismicity remains low though occasional low-amplitude tremor bursts lasting minutes occasionally occur. No plumes have been reported.
On Aug. 20 there were a few low-amplitude tremor bursts lasting ~2 minutes.
On Aug. 21 there were two episodes of volcanic tremor - ~5 minutes of tremor starting at 16:15 UTC and ~50 minutes of tremor starting at 16:50 UTC. Subsequent seismicity returned to background levels.
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
Sunday, August 17, 2008 04:53 MPT (Saturday, August 16, 2008 18:53 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.
On Aug. 12, the Aviation color code was lowered from Orange to Yellow and the Alert level from Watch to Advisory at Anatahan volcano. Seismicity remains low though occasional low-amplitude tremor bursts lasting minutes occasionally occur. No plumes have been reported.
On Aug. 13, the CNMI Emergency Management Office released a statement concerning haze in the area. The haze, however, was not a result of Anatahan activity.
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, August 12, 2008 09:43 MPT (Monday, August 11, 2008 23:43 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 is being lowered from Orange to Yellow and the Alert level from Watch to Advisory at Anatahan volcano. Seismicity remains low. Photographs from a visit to the volcano Aug. 8 show a low-level (6,000-7,000 ft above sea level) relatively passive steam plume rising above the island. Occasional SO2 plumes have been seen over the past few weeks by satellite, but no ash has been identified.
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
Monday, August 11, 2008 08:08 MPT (Sunday, August 10, 2008 22:08 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: WATCH
Aviation Color Code: ORANGE
Report prepared by the U.S. Geological Survey.
Seismicity at Anatahan Volcano continues at low levels similar to the past few days. A burst of tremor lasting 30 minutes occurred at ~12:00 UTC. No plume was observed in clear satellite views this morning.
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
Sunday, August 10, 2008 08:11 MPT (Saturday, August 9, 2008 22:11 UTC)
ANATAHAN VOLCANO (CAVW#0804-20=)
16.35°N 145.67°E, Summit Elevation 2592 ft (790 m)
Volcano Alert Level: WATCH
Aviation Color Code: ORANGE
Report prepared by the U.S. Geological Survey.
Seismicity at Anatahan Volcano continues at low levels similar to the past two days. No plumes have been observed in satellite views today. Low-level steam and minor ash emissions observed yesterday, are likely occurring.
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
