Griggs

Country: United States
Volcanic Region Group: North America Volcanic Regions
Volcanic Region: Alaska Peninsula Volcanic Arc
Volcano Landform: Composite
Primary Volcano Type: Stratovolcano
Activity Evidence: Eruption Dated
Last Known Eruption: 1790 BCE
Latitude: 58.354
Longitude: -155.092
Elevation (meters): 2317
Tectonic Setting: Subduction zone / Continental crust (>25 km)
Dominant Rock Type: Andesite / Basaltic Andesite
Last Updated: 2022-03-18 23:33:23

Current Ash Alerts

Title: No Ash Alerts
Description: No Ash Alerts
Link: #
Guid: #
No general news available

Current Alert Status

Alert Level: NORMAL
Color Code: GREEN
Cap Certainty: NULL
Cap Severity: NULL
Cap Urgency: NULL
Is Elevated Cap:
Prev Elevated Cap:
Notice Identifier: DOI-USGS-AVO-2022-03-17T21:43:51-08:00
Pub Date: 2022-03-18 23:33:23
Sent Date Cap: 2022-03-18 23:33:23
Cap Expires: 2022-03-18 23:33:23
Mail Subject: Alaska Volcano Observatory: Griggs
Author: Alaska Volcano Observatory
Synopsis: Archived
Guid: https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-AVO-2022-03-17T21:43:51-08:00
Prev Guid: NULL
Msg Type: Archived
Notice Type Cd: IS
Notice URL: https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-AVO-2022-03-17T21:43:51-08:00
Prev Notice URL: NULL
Notice Data: https://volcanoes.usgs.gov/hans-public/api/notice/getNotice/DOI-USGS-AVO-2022-03-17T21:43:51-08:00
Highest Alert Level: NORMAL
Highest Color Code: GREEN
Volcano Cds CSV: ak112,ak147,ak187,ak189,ak203,ak257,ak288

Notice Sections:

lat: N/A
lng: N/A
vUrl:
vnum: N/A
vName: N/A
region: N/A
vImage:
summary:
A regional telecommunication link in King Salmon was repaired on Thursday and data from seismic networks that monitor seven volcanoes in the Katmai region are now available. The Alaska Volcano Observatory (AVO) can now confidently monitor seismic unrest at these volcanoes. With renewed seismic monitoring, these volcanoes are being moved from UNASSIGNED to a volcano alert level of NORMAL and an aviation color code of GREEN. Telemetry for the the network that monitors Ugashik-Peulik and Ukinrek Maars, on the Alaska Peninsula, has also been restored. However, only three seismic stations in the network are currently returning data, likely due to heavy snow cover at other stations. This smaller network inhibits AVO's ability to detect precursory unrest that may lead to an eruption; therefore, these volcanoes remain at UNASSIGNED for the time being. As at other Alaska volcanoes, AVO will continue to monitor seismic, satellite, infrasound, and lightning data, and reports from pilots and ground observers to detect signs of eruptive activity.
synopsis: AVO - Aviation color code and volcano alert level changed to GREEN/NORMAL at seven volcanoes due to recovery of instrumental monitoring data.
colorCode: UNASSIGNED
sectionId: DOI-USGS-AVO-2022-03-17T21:44:00-08:00
alertLevel: UNASSIGNED
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


A regional telecommunication link in King Salmon was repaired on Thursday and data from seismic networks that monitor seven volcanoes in the Katmai region are now available. The Alaska Volcano Observatory (AVO) can now confidently monitor seismic unrest at these volcanoes. With renewed seismic monitoring, these volcanoes are being moved from UNASSIGNED to a volcano alert level of NORMAL and an aviation color code of GREEN.

Telemetry for the the network that monitors Ugashik-Peulik and Ukinrek Maars, on the Alaska Peninsula, has also been restored. However, only three seismic stations in the network are currently returning data, likely due to heavy snow cover at other stations. This smaller network inhibits AVO's ability to detect precursory unrest that may lead to an eruption; therefore, these volcanoes remain at UNASSIGNED for the time being.

As at other Alaska volcanoes, AVO will continue to monitor seismic, satellite, infrasound, and lightning data, and reports from pilots and ground observers to detect signs of eruptive activity.


This notice contains additional volcanoes not displayed: Griggs (NORMAL/GREEN), Katmai (NORMAL/GREEN), Mageik (NORMAL/GREEN), Martin (NORMAL/GREEN), Novarupta (NORMAL/GREEN), Snowy Mountain (NORMAL/GREEN), Trident (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
lat: 58.3572
lng: -155.1037
vnum: 312190
vName: Griggs
region: Alaska Peninsula
vImage:
summary:
Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
synopsis: AVO Griggs GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2022-03-17T21:43:51-08:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


GRIGGS VOLCANO(VNUM #312190)
58°21'26" N 155°6'13" W, Summit Elevation 7602 ft (2317 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.


This notice contains additional volcanoes not displayed: (UNASSIGNED/UNASSIGNED), Katmai (NORMAL/GREEN), Mageik (NORMAL/GREEN), Martin (NORMAL/GREEN), Novarupta (NORMAL/GREEN), Snowy Mountain (NORMAL/GREEN), Trident (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
lat: 58.279
lng: -154.9533
vnum: 312170
vName: Katmai
region: Alaska Peninsula
vImage:
summary:
Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
synopsis: AVO Katmai GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2022-03-17T21:43:52-08:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


KATMAI VOLCANO(VNUM #312170)
58°16'44" N 154°57'12" W, Summit Elevation 6716 ft (2047 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.


This notice contains additional volcanoes not displayed: (UNASSIGNED/UNASSIGNED), Griggs (NORMAL/GREEN), Mageik (NORMAL/GREEN), Martin (NORMAL/GREEN), Novarupta (NORMAL/GREEN), Snowy Mountain (NORMAL/GREEN), Trident (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
lat: 58.1946
lng: -155.2544
vnum: 312150
vName: Mageik
region: Alaska Peninsula
vImage:
summary:
Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
synopsis: AVO Mageik GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2022-03-17T21:43:53-08:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


MAGEIK VOLCANO(VNUM #312150)
58°11'41" N 155°15'16" W, Summit Elevation 7103 ft (2165 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.


This notice contains additional volcanoes not displayed: (UNASSIGNED/UNASSIGNED), Griggs (NORMAL/GREEN), Katmai (NORMAL/GREEN), Martin (NORMAL/GREEN), Novarupta (NORMAL/GREEN), Snowy Mountain (NORMAL/GREEN), Trident (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
lat: 58.1692
lng: -155.3566
vnum: 312140
vName: Martin
region: Alaska Peninsula
vImage:
summary:
Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
synopsis: AVO Martin GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2022-03-17T21:43:54-08:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


MARTIN VOLCANO(VNUM #312140)
58°10'9" N 155°21'24" W, Summit Elevation 6102 ft (1860 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.


This notice contains additional volcanoes not displayed: (UNASSIGNED/UNASSIGNED), Griggs (NORMAL/GREEN), Katmai (NORMAL/GREEN), Mageik (NORMAL/GREEN), Novarupta (NORMAL/GREEN), Snowy Mountain (NORMAL/GREEN), Trident (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
lat: 58.2654
lng: -155.1591
vnum: 312180
vName: Novarupta
region: Alaska Peninsula
vImage:
summary:
Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
synopsis: AVO Novarupta GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2022-03-17T21:43:55-08:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


NOVARUPTA VOLCANO(VNUM #312180)
58°15'55" N 155°9'33" W, Summit Elevation 2759 ft (841 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.


This notice contains additional volcanoes not displayed: (UNASSIGNED/UNASSIGNED), Griggs (NORMAL/GREEN), Katmai (NORMAL/GREEN), Mageik (NORMAL/GREEN), Martin (NORMAL/GREEN), Snowy Mountain (NORMAL/GREEN), Trident (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
lat: 58.3336
lng: -154.6859
vnum: 312200
vName: Snowy Mountain
region: Alaska Peninsula
vImage:
summary:
Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
synopsis: AVO Snowy Mountain GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2022-03-17T21:43:56-08:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


SNOWY MOUNTAIN VOLCANO(VNUM #312200)
58°20'1" N 154°41'9" W, Summit Elevation 7090 ft (2161 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.


This notice contains additional volcanoes not displayed: (UNASSIGNED/UNASSIGNED), Griggs (NORMAL/GREEN), Katmai (NORMAL/GREEN), Mageik (NORMAL/GREEN), Martin (NORMAL/GREEN), Novarupta (NORMAL/GREEN), Trident (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
lat: 58.2343
lng: -155.1026
vnum: 312160
vName: Trident
region: Alaska Peninsula
vImage:
summary:
Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
synopsis: AVO Trident GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2022-03-17T21:43:57-08:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Friday, March 18, 2022, 3:33 PM AKDT (Friday, March 18, 2022, 23:33 UTC)


TRIDENT VOLCANO(VNUM #312160)
58°14'3" N 155°6'9" W, Summit Elevation 3599 ft (1097 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Aviation color code and alert level changed to GREEN/NORMAL due to reestabilished communication links to instrumental monitoring data.


This notice contains additional volcanoes not displayed: (UNASSIGNED/UNASSIGNED), Griggs (NORMAL/GREEN), Katmai (NORMAL/GREEN), Mageik (NORMAL/GREEN), Martin (NORMAL/GREEN), Novarupta (NORMAL/GREEN), Snowy Mountain (NORMAL/GREEN).

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo

FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo

CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS, [email protected], (907) 786-7497

David Fee, Coordinating Scientist, UAFGI, [email protected], (907) 322-4085

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
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