火山名称	警报级别	所属地域	火山状态
Amukta	UNASSIGNED	Aleutians
Fisher	NORMAL	Aleutians
Fourpeaked	UNASSIGNED	Alaska Peninsula	The Alaska Volcano Observatory (AVO) has experienced failures of all monitoring instruments and stations at Fourpeaked Volcano and can no longer seismically monitor unrest at this volcano. As a result AVO is unable to (1) assess whether this ...
Frosty	UNASSIGNED	Alaska Peninsula	On Saturday November 12, 2016, AVO received reports from local residents of an avalanche feature on the northeast flank of Frosty Volcano, located 8 mi (13 km) southwest of Cold Bay. Analysis of photographs received by AVO show that a small portion ...
Gareloi	NORMAL	Aleutians	The magnitude 6.0 earthquake that occurred this morning at 09:00 AKDT (17:00 UTC) near Gareloi volcano was part of an ongoing swarm of shallow earthquakes that has been active between Gareloi and Tanaga Islands since April 30. At this time, the ...
Gordon	UNASSIGNED	Wrangell Volcanic Field
Great Sitkin	NORMAL	Aleutians	Earlier this week, AVO released an Information Statement describing an increase in seismic activity at Great Sitkin Volcano in the central Aleutian Islands, possibly starting as early as 30 July 2016. Along with the year-long increase in shallow ...
Griggs	NORMAL	Alaska Peninsula
Hayes	UNASSIGNED	Cook Inlet-South Central
Herbert	UNASSIGNED	Aleutians
Iliamna	NORMAL	Cook Inlet-South Central	Just before midnight on Saturday May 21, AVO detected seismic and pressure sensor signals associated with a large non-volcanic avalanche on the north flank of Iliamna Volcano. Avalanche events are somewhat common at this volcano. The seismic ...
Imuruk Lake	UNASSIGNED	Seward Peninsula
Ingakslugwat Hills	UNASSIGNED	Southwest Alaska
Isanotski	NORMAL	Aleutians
Aniakchak	NORMAL	Alaska Peninsula	The Alaska Volcano Observatory (AVO) has re-established five of the six seismic monitoring instruments at Aniakchak Volcano and can now confidently monitor seismic unrest at the volcano. The maintenance work was completed this summer. With ...
Kagamil	UNASSIGNED	Aleutians
Kaguyak	UNASSIGNED	Alaska Peninsula
Kanaga	NORMAL	Aleutians	The level of unrest at Kanaga Volcano has declined to background levels and AVO is reducing the Aviation Color Code and Volcano Alert Level to Green/Advisory. A brief period of elevated seismicity and an associated minor ash emission were ...
Kasatochi	UNASSIGNED	Aleutians	Yesterday, AVO reduced the Aviation Color Code to UNASSIGNED and Volcanic Alert Level to UNASSIGNED following two months of declining regional seismicity and no sign of continuing volcanic unrest.
Katmai	NORMAL	Alaska Peninsula	Strong northwest winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and carried it to the southeast today. As seen in a satellite image from this ...
Kialagvik	UNASSIGNED	Alaska Peninsula
Kiska	UNASSIGNED	Aleutians
Koniuji	UNASSIGNED	Aleutians
Kookooligit Mountains	UNASSIGNED	Bering Sea
Korovin	NORMAL	Aleutians
Kukak	UNASSIGNED	Alaska Peninsula
Kupreanof	UNASSIGNED	Alaska Peninsula
Little Sitkin	UNASSIGNED	Aleutians	AVO can no longer seismically monitor the following volcanoes because of seismic station outages. As a result, AVO is unable to (1) assess whether these volcanoes may be building towards an eruption and (2) quickly confirm or dismiss reports of ...
Mageik	NORMAL	Alaska Peninsula
Makushin	NORMAL	Aleutians
Martin	NORMAL	Alaska Peninsula
Moffett	UNASSIGNED	Aleutians
Augustine	NORMAL	Cook Inlet-South Central	The M7.1 earthquake that occurred this morning at 1:30 AM AKDT between Augustine and Iliamna volcanoes was a result of tectonic plate motions and was not directly related to the volcanoes. According to the Alaska Earthquake Center (AEC), it was ...
Novarupta	NORMAL	Alaska Peninsula
Nunivak Island	UNASSIGNED	Southwest Alaska
Okmok	NORMAL	Aleutians	AVO reduced the Aviation Color Code to GREEN and the Volcanic Alert Level to NORMAL for Okmok volcano earlier today. Seismic activity at Okmok has been at low to near background levels and satellite views show no activity over the past two weeks. ...
Pavlof	ADVISORY	Alaska Peninsula	No activity was observed in partly cloudy satellite data. Pavlof was obscured by cloudy weather in web camera images from the past day. No significant activity has been detected in seismic and infrasound data over the past day. The level of ...
Pavlof Sister	UNASSIGNED	Alaska Peninsula
Behm Canal-Rudyerd Bay	UNASSIGNED	Southeast Alaska
Recheshnoi	UNASSIGNED	Aleutians
Redoubt	NORMAL	Cook Inlet-South Central	AVO detected a series of small repetitive earthquakes near the summit of Redoubt volcano on April 17 - 20 of this week. This swarm was similar in character to those occurring on April 5 - 6, 2010 and in December 2009. As the lava dome and magma in ...
Roundtop	UNASSIGNED	Aleutians
Sanford	UNASSIGNED	Wrangell Volcanic Field	For the past several days, residents of the Copper River Basin have observed and reported a persistent, white cloud streaming from the summit of Mt. Sanford and extending for up to several tens of miles to the south. The cloud was easily visible in ...
Seguam	UNASSIGNED	Aleutians
Segula	UNASSIGNED	Aleutians
Semisopochnoi	UNASSIGNED	Aleutians	A decline in seismicity over the last few months and no sign of activity in daily satellite images prompts AVO to downgrade Semisopochnoi volcano from Aviation Color Code YELLOW and Volcanic Alert Level ADVISORY to UNASSIGNED. Following a brief ...
Sergief	UNASSIGNED	Aleutians
Black Peak	UNASSIGNED	Alaska Peninsula
Shishaldin	NORMAL	Aleutians	The status of Shishaldin Volcano was lowered to aviation color code GREEN and volcano alert level NORMAL this week following a steady decrease in detected thermal and seismic activity over the past several months. Low-amplitude seismic tremor ...
Snowy	NORMAL	Alaska Peninsula
Spurr	NORMAL	Cook Inlet-South Central	A possible outburst of water from beneath a glacier on the lower south flank of Mount Spurr was detected beginning about 11:20 AKST on September 11. The flow appears to have been a single event lasting about 20 minutes. Similar and larger duration ...
St. Michael	UNASSIGNED	Southwest Alaska
Steller	UNASSIGNED	Alaska Peninsula
Table Top Mtn	UNASSIGNED	Aleutians
Takawangha	NORMAL	Aleutians	The energetic earthquake swarm on Tanaga Island that began on January 23, 2017, declined significantly this week and seismicity is near background levels. As a result, AVO lowered the Aviation Color Code to GREEN and Alert Level to NORMAL for ...
Bobrof	UNASSIGNED	Aleutians
Tanaga	NORMAL	Aleutians
Tlevak Strait-Suemez Island	UNASSIGNED	Southeast Alaska
Trident	NORMAL	Alaska Peninsula
Bogoslof	WATCH	Aleutians	A sequence of seismic events at Bogolsof began to be observed beginning at about 8:00 UTC on August 5 (MIdnight AKDT) and are continuing. Similar sequences have preceded eruptive activity at Bogoslof. In other cases, such activity died down with ...
Ugashik-Peulik	NORMAL	Alaska Peninsula	Over the past several weeks seismic instruments at UGASHIK-PEULIK volcano have slowly returned to operation. These instruments are solar powered and have likely returned to operation as a result of increased solar input with the changing season. AVO ...
Ukinrek Maars	NORMAL	Alaska Peninsula	Over the past several weeks seismic instruments at Ukinrek volcano have slowly returned to operation. These instruments are solar powered and have likely returned to operation as a result of increased solar input with the changing season. AVO is now ...
Uliaga	UNASSIGNED	Aleutians
Unnamed (near Ukinrek Maars)	UNASSIGNED	Alaska Peninsula
Adagdak	UNASSIGNED	Aleutians
Veniaminof	NORMAL	Alaska Peninsula	AVO downgraded the status of Veniaminof from aviation color code YELLOW to GREEN and from volcano alert level ADVISORY to NORMAL today. Seismic activity, indicative of unrest, at Veniaminof had decreased to background levels during the past two ...
Stepovak Bay 2	UNASSIGNED	Alaska Peninsula
Vsevidof	UNASSIGNED	Aleutians
Westdahl	NORMAL	Aleutians
Wrangell	UNASSIGNED	Wrangell Volcanic Field	AVO can no longer seismically monitor Wrangell volcano because of seismic station outages. As a result, AVO is unable to assess seismic activity at this volcano. As at other volcanoes without real-time seismic networks, AVO will continue to use ...
Yantarni	UNASSIGNED	Alaska Peninsula
Yunaska	UNASSIGNED	Aleutians
Bona-Churchill	UNASSIGNED	Alaska
Buldir	UNASSIGNED	Aleutians
Buzzard Creek	UNASSIGNED	Interior Alaska
Carlisle	UNASSIGNED	Aleutians
Chagulak	UNASSIGNED	Aleutians
Chiginagak	UNASSIGNED	Alaska Peninsula
Cleveland	WATCH	Aleutians	Unrest continues at Cleveland Volcano. Elevated surface temperatures were observed in satellite data from this morning. The summit of Cleveland is obscured by cloudy weather in web camera images. No significant activity observed in seismic ...
Akutan	NORMAL	Aleutians
Dana	UNASSIGNED	Alaska Peninsula
Davidof	UNASSIGNED	Aleutians
Denison	UNASSIGNED	Alaska Peninsula
Amak	UNASSIGNED	Alaska Peninsula
Douglas	UNASSIGNED	Alaska Peninsula
Duncan Canal	UNASSIGNED	Southeast Alaska
Dutton	NORMAL	Alaska Peninsula
Edgecumbe	UNASSIGNED	Southeast Alaska
Emmons Lake Volcanic Center	UNASSIGNED	Alaska Peninsula
Espenberg	UNASSIGNED	Seward Peninsula
Alaskan Volcanoes	NORMAL	Alaska	No eruptive activity or unrest has been detected at volcanoes in Alaska this week.
San Francisco Peaks volcanic field	UNASSIGNED	Arizona
Uinkaret volcanic field	UNASSIGNED	Arizona
Lavic Lake	UNASSIGNED	California
Long Valley Volcanic Center	NORMAL	California	Fifteen earthquakes with magnitudes between M=1.0 and M=1.8 occurred in the Mammoth Lakes-Long Valley region in the last seven days. The events were located in the Sierra Nevada, with the exception of three earthquakes in the caldera east of the ...
Mammoth Mountain	NORMAL	California
Medicine Lake Volcano	NORMAL	California
Mono Lake Volcanic Field	NORMAL	California
Mount Shasta	NORMAL	California
Tumble Buttes	UNASSIGNED	California
Twin Buttes	UNASSIGNED	California
Ubehebe Craters	NORMAL	California
Big Cave	UNASSIGNED	California
Salton Buttes	NORMAL	California
Brushy Butte	UNASSIGNED	California
Clear Lake	NORMAL	California
Coso Volcanic Field	NORMAL	California
Eagle Lake Field	UNASSIGNED	California
Golden Trout Creek	UNASSIGNED	California
Inyo Craters	NORMAL	California
Lassen Volcanic Center	NORMAL	California	Information Statement for the November 2-16, 2009, Lassen Peak swarm activity A series of small earthquake swarms beneath the southwest flank of Lassen Peak in Lassen Volcanic National Park that began in the late evening on November 2 continued ...
Cascade Range	NORMAL	Cascade Range	Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal background levels of activity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; and Mount Hood, ...
Dotsero	UNASSIGNED	Colorado
Haleakala	NORMAL	Hawaii	No significant changes were detected at Haleakalā during the month of July. One earthquake occurred in the vicinity of the volcano and HVO’s single, continuously recording Global Positioning System (GPS) instrument atop Haleakalā volcano ...
Hualalai	NORMAL	Hawaii	No significant changes were detected at Hualālai during the month of July. One earthquake greater than 13 km (8 mi) depth and 2 earthquakes shallower than 13 km (8 mi) depth were recorded in the vicinity of the volcano. A continuously recording ...
Kilauea	WATCH	Hawaii	Activity Summary: Kīlauea Volcano continues to erupt at its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the ...
Lo`ihi	UNASSIGNED	Hawaii	Earthquake activity remained elevated at Lō‘ihi during July with HVO recording 27 earthquakes in the vicinity of the volcano. This is a 75% drop in the total number of Lō‘ihi earthquakes compared to June. Most earthquakes occurred around 12 ...
Mauna Kea	NORMAL	Hawaii	No significant deformation or seismicity occurred during the month of July. HVO recorded 10 earthquakes deeper than 13 km (8 mi) and 8 shallow earthquakes beneath the volcano in July. A single, continuously recording Global Positioning System (GPS) ...
Mauna Loa	ADVISORY	Hawaii	Activity Summary: Mauna Loa Volcano is not erupting. Rates of deformation and seismicity have not changed significantly in the past week, and continue to be above long-term background levels. Observations: Small-magnitude earthquakes continue ...
Craters of the Moon volcanic field	UNASSIGNED	Idaho
Hells Half Acre volcanic field	UNASSIGNED	Idaho
Black Butte Crater Volcanic Field	UNASSIGNED	Idaho
Wapi Lava Field	UNASSIGNED	Idaho
Carrizozo	UNASSIGNED	New Mexico
Valles Caldera	UNASSIGNED	New Mexico
Zuni-Bandera volcanic field	UNASSIGNED	New Mexico
Agrigan	UNASSIGNED	Northern Mariana Islands	In a satellite image from January 22, NOAA's Washington Volcanic Ash Advisory Center spotted a possible volcanic plume from Agrigan. Neither USGS nor NOAA have received confirmation of a volcanic source for this anomaly and it is likely the cloud ...
Pagan	UNASSIGNED	Northern Mariana Islands	Satellite data and ground-based observations from a field crew and local residents indicate that steam and gas emissions from Mount Pagan Volcano have significantly decreased since March 2015. Based on the decrease in visible emissions and the ...
Ruby	UNASSIGNED	Northern Mariana Islands
Sarigan	UNASSIGNED	Northern Mariana Islands	Equipment failure on 29 December resulted in the loss of seismic data from Sarigan, so we are no longer monitoring the volcano with local data. Repair of monitoring systems will be attempted in late January. No unusual seismicity was observed before ...
Supply Reef	UNASSIGNED	Northern Mariana Islands
Ahyi	UNASSIGNED	Northern Mariana Islands	Seismic activity indicative of submarine eruptions near Ahyi seamount has ended. The last signal from the Ahyi area received on distant seismometers was recorded on May 17. NOAA scientists working in the vicinity of Ahyi on the research vessel ...
Alamagan	UNASSIGNED	Northern Mariana Islands
Anatahan	NORMAL	Northern Mariana Islands	Equipment failure on 29 December resulted in the loss of seismic data from Anatahan, so we are no longer monitoring the volcano with local data. Repair of monitoring systems will be attempted in late January. No unusual seismicity was observed ...
Asuncion	UNASSIGNED	Northern Mariana Islands
Esmeralda Bank	UNASSIGNED	Northern Mariana Islands
Farallon de Pajaros	UNASSIGNED	Northern Mariana Islands
Guguan	UNASSIGNED	Northern Mariana Islands
Maug Islands	UNASSIGNED	Northern Mariana Islands
Soda Lakes	UNASSIGNED	Nevada
Belknap Shield Volcano	UNASSIGNED	Oregon
Jordan Craters	UNASSIGNED	Oregon
Mount Bachelor	UNASSIGNED	Oregon
Mount Hood	NORMAL	Oregon
Mount Jefferson	NORMAL	Oregon
Newberry	NORMAL	Oregon	RECENTLY INSTALLED MONITORING NETWORK AT NEWBERRY VOLCANO, OREGON, NOW FULLY OPERATIONAL During August 2011, scientists and volunteers from the USGS Cascades Volcano Observatory (CVO) installed eight new real-time seismic and deformation (GPS) ...
Sand Mountain Field	UNASSIGNED	Oregon
South Sister	NORMAL	Oregon
Lava Mountain	UNASSIGNED	Oregon
Blue Lake Crater	UNASSIGNED	Oregon
Cinnamon Butte	UNASSIGNED	Oregon
Crater Lake	NORMAL	Oregon
Davis Lake	UNASSIGNED	Oregon
Devils Garden	UNASSIGNED	Oregon
Diamond Craters	UNASSIGNED	Oregon
Four Craters Lava Field	UNASSIGNED	Oregon
Bald Knoll volcanic field	UNASSIGNED	Utah
Black Rock Desert volcanic field	UNASSIGNED	Utah
Markagunt Plateau volcanic field	UNASSIGNED	Utah
Santa Clara volcanic field	UNASSIGNED	Utah
Mount Adams	NORMAL	Washington
Mount Baker	NORMAL	Washington
Glacier Peak	NORMAL	Washington
Mount St. Helens	NORMAL	Washington	Posted via the USGS Volcano Notification Service (VNS) http://volcanoes.usgs.gov/vns/ Analysis of current behavior at Mount St. Helens indicates that the volcano remains active and is showing signs of long-term uplift and earthquake activity, ...
Indian Heaven	UNASSIGNED	Washington
Mount Rainier	NORMAL	Washington
West Crater	UNASSIGNED	Washington
Yellowstone	NORMAL	Wyoming	Seismicity During July 2017, the University of Utah Seismograph Stations, responsible for the operation and analysis of the Yellowstone Seismic Network, reports 528 earthquakes were located in the Yellowstone National Park (YNP) region. The ...
Folsoms Bluff	UNASSIGNED	Alaska
Amchixtam Chaxsxii	UNASSIGNED	Aleutians
Gas Rocks, the	UNASSIGNED	Alaska Peninsula
Gilbert	UNASSIGNED	Aleutians
Andrew Bay volcano	UNASSIGNED	Aleutians
Ingrisarak Mtn	UNASSIGNED	Southwest Alaska
Iron Trig cone	UNASSIGNED	Alaska
Iskut-Unuk River cones	UNASSIGNED	Southeast Alaska
Jarvis	UNASSIGNED	Wrangell Volcanic Field
Jumbo Dome	UNASSIGNED	Interior Alaska
Kejulik	UNASSIGNED	Alaska Peninsula
Klawasi Group	UNASSIGNED	Wrangell Volcanic Field
Knob 1000	UNASSIGNED	Alaska
Kochilagok Hill	UNASSIGNED	Southwest Alaska
Atka	UNASSIGNED	Aleutians
Koyuk-Buckland volcanics	UNASSIGNED	Seward Peninsula
Lost Jim Cone	UNASSIGNED	Seward Peninsula
Morzhovoi	UNASSIGNED	Alaska Peninsula
Nelson Island	UNASSIGNED	Southwest Alaska
Nushkolik Mountain volcanic field	UNASSIGNED	Southwest Alaska
Basalt of Gertrude Creek	UNASSIGNED	Alaska
Prindle Volcano	UNASSIGNED	Interior Alaska
Rainbow River cone	UNASSIGNED	Alaska
Skookum Creek	UNASSIGNED	Wrangell Volcanic Field
St. George volcanic field	UNASSIGNED	Bering Sea
St. Paul Island	UNASSIGNED	Bering Sea
Blue Mtn	UNASSIGNED	Alaska Peninsula
Suemez Island	UNASSIGNED	Southeast Alaska
Tana	UNASSIGNED	Aleutians
Tanada Peak	UNASSIGNED	Wrangell Volcanic Field
Togiak volcanics	UNASSIGNED	Southwest Alaska
Trader Mtn	UNASSIGNED	Alaska Peninsula
Ungulungwak Hill-Ingrichuak Hill	UNASSIGNED	Southwest Alaska
Stepovak Bay 1	UNASSIGNED	Alaska Peninsula
Stepovak Bay 3	UNASSIGNED	Alaska Peninsula
Stepovak Bay 4	UNASSIGNED	Alaska Peninsula
Wide Bay cone	UNASSIGNED	Aleutians
Lone basalt	UNASSIGNED	Alaska Peninsula
Unimak 5270	UNASSIGNED	Aleutians
Monogenetic QT vents of WWVF	UNASSIGNED	Wrangell Volcanic Field
Ingenstrem Depression Volcanic Field	UNASSIGNED	Alaska
Western Cones	UNASSIGNED	Aleutians
Capital	UNASSIGNED	Wrangell Volcanic Field
Churchill, Mt	UNASSIGNED	Wrangell Volcanic Field
Cone 3110	UNASSIGNED	Alaska
Cone 3601	UNASSIGNED	Alaska
Alagogshak	UNASSIGNED	Alaska Peninsula
Devils Desk	UNASSIGNED	Alaska Peninsula
Double Glacier	UNASSIGNED	Cook Inlet-South Central
Drum	UNASSIGNED	Wrangell Volcanic Field