AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
Image Search | Recent Images | Popular Images | Browse Images 
You are here: Home > Images > Browse Images

AVO IMAGE DATABASE
First  < Previous  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  ... Next >  Last  
ImageDetailsVolcanoesKeywords
thumbnail
Caption:Steaming from the summit of Shishaldin volcano, February 27, 2015. Photo taken 45 miles NNW of the volcano from a ship in the Bering Sea.
Date:February 27, 2015 6:31 PM
Photographer:Musselwhite, Levi
ShishaldinSteam
thumbnail
Caption:Looking closely at the intracaldera cone (visible just to the left of the tower in this image), a low-level degassing plume is visible at Veniaminof. Photo from the FAA Perryville webcam, February 25, 2015.
Date:February 25, 2015 2:09 AM
Photographer:FAA Perryville NW webcam
VeniaminofSteam
thumbnail
Caption:Here's a helpful picture for thinking about the size of earthquakes. We usually talk about the amount of energy released in an earthquake as the "earthquake magnitude (M)". But, earthquake magnitude is on a logarithmic scale. That means a M2 earthquake releases as much energy as about 32 M1 earthquakes. Likewise, about 32 M2 earthquakes release the energy of one M3 earthquake. Now consider that a M3 earthquake releases about 1000 times the energy of a M1. As you go up the magnitude scale the numbers get gigantic - one billion M1 earthquakes release the energy of a M7 earthquake! Volcanic earthquakes tend to be really small, usually less than M3. But remember, if a volcano usually has only M1 earthquakes, and then has a M2 - this volcano has released about 32 times more energy than usual. This is why AVO seismologists closely watch even the smallest earthquakes to look for changes at a volcano.
Date:February 25, 2015 12:00 AM
Photographer:Buurman, Helena
ArrayVolcano
thumbnail
Caption:Happy Valentine's Day from seismic stations MTBL, MNAT, MREP, MCIR, MGOD, and MSW on Makushin Volcano, Alaska.
Date:February 14, 2015 12:00 AM
Photographer:Anonymous
MakushinVolcano
thumbnail
Caption:This is a long-period horizontal seismometer, likely built for the World Wide Standard Seismological Network (WWSSN) in the early 1960s. The WWSSN was designed to detect underground nuclear tests. Further information about this type of instrument can be found at the Smithsonian's National Museum of American History (http://americanhistory.si.edu/collections/search/object/nmah_1445876 ).
Date:February 11, 2015 1:43 PM
Photographer:Cameron, Cheryl
ArrayJust for fun
thumbnail
Caption:Here’s an example from Monday, February 9, 2015, of what “elevated seismicity” or tremor can look like at Shishaldin. In this spectrogram, warmer colors mean stronger signal. Shishaldin sometimes produces small puffs of ash, that can be seen in the seismic record as an increase in tremor. Other times the tremor will increase without any eruptive activity. Satellite and camera images help verify whether any ash was erupted. Figure courtesy of Helena Buurman, UAFGI.
Date:February 10, 2015 12:00 AM
Photographer:Buurman, Helena
ShishaldinVolcano
thumbnail
Caption:Small, low-level ash emission from the summit of Shishaldin Volcano, February 2, 2015.
Date:February 2, 2015 10:31 AM
Photographer:USGS Shishaldin webcam
ArrayTephra
thumbnail
Caption:Worldview satellite image overlain over topography showing Semisopochnoi on January 30, 2015. The three prominent craters in the center belong to Mount Cerberus (named for the three-headed dog in Greek and Roman mythology); the peak behind and to the right of Cerberus is Anvil Peak. Sugarloaf Peak is in the foreground, just left of center. View is from the southeast.
Date:January 30, 2015 12:00 AM
Photographer:Schneider, Dave
SemisopochnoiVolcano
thumbnail
Caption:Cleveland volcano remains active. In this perspective Landsat-8 satellite image view, shortwave-infrared data is overlain on visible wavelength data. Colors show the location of elevated surface temperatures in the summit crater due to the presence of a small lava dome or plug.
Date:January 5, 2015 12:00 AM
Photographer:Schneider, Dave
ClevelandDome, Volcano
thumbnail
Caption:Evidence of a visitor to CLCO on Chuginadak Island: fox tracks in the fresh snow.
Date:December 27, 2014 2:03 PM
Photographer:Cleveland, Concord
ClevelandJust for fun
thumbnail
Caption:Akutan volcano's caldera and intracaldera cone, as seen from the air, looking to the southeast. The Alaska community of Akutan lies about 9 miles northeast, and is not visible in this photograph.
Date:December 5, 2014 5:28 PM
Photographer:MacPherson, Amy
AkutanCaldera/crater, Volcano
thumbnail
Caption:Pavlof volcano steaming, as viewed from Nelson Lagoon, December 5, 2014. Photo courtesy of Merle Brandell.
Date:December 5, 2014 12:00 AM
Photographer:Brandell, Merle
PavlofFumarolic activity, Lava flow
thumbnail
Caption:Pavlof volcano with steam rising from the 2014 vent region, as viewed from Nelson Lagoon, December 5, 2014. Pavlof Sister is the lower peak in front of Pavlof. Photo courtesy of Merle Brandell.
Date:December 5, 2014 12:00 AM
Photographer:Brandell, Merle
PavlofFumarolic activity, Lava flow
thumbnail
Caption:Pavlof Volcano, December 5, 2014. Photo courtesy of Royce Snapp.
Date:December 5, 2014 12:00 AM
Photographer:Snapp, Royce
PavlofFumarolic activity, Lava flow
thumbnail
Caption:Pavlof volcano steaming, as viewed from Nelson Lagoon, December 5, 2014. Photo courtesy of Merle Brandell.
Date:December 5, 2014 12:00 AM
Photographer:Brandell, Merle
PavlofFumarolic activity, Lava flow
thumbnail
Caption:Pavlof volcano steaming, as viewed from Nelson Lagoon, December 5, 2014. Photo courtesy of Merle Brandell.
Date:December 5, 2014 12:00 AM
Photographer:Brandell, Merle
PavlofFumarolic activity, Lava flow
thumbnail
Caption:Pavlof volcano, earthshadow, and almost-full moon, December 4, 2014. Photo courtesy of Royce Snapp.
Date:December 4, 2014 12:00 AM
Photographer:Snapp, Royce
PavlofStratovolcano, Volcano
thumbnail
Caption:Steam rises from the summit of Shishaldin volcano on the evening of December 3, 2014. View is to the south. Photo taken by Levi Musselwhite, aboard a boat in the Bering Sea, approximately 75 miles north of Shishaldin.
Date:December 3, 2014 6:47 PM
Photographer:Musselwhite, Levi
ShishaldinEruption cloud/ plume/ column
thumbnail
Caption:Curious steam cloud over Shishaldin volcano (right). Isanotski volcano on left. Photo by Levi Musselwhite.
Date:December 3, 2014 6:45 PM
Photographer:Musselwhite, Levi
Isanotski, ShishaldinEruption cloud/ plume/ column
thumbnail
Caption:Sunrise over Amak on December 3, 2014. Picture taken by Levi Musselwhite, 33 miles Northwest of Amak.
Date:December 3, 2014 11:13 AM
Photographer:Musselwhite, Levi
Amak
thumbnail
Caption:Pavlof volcano emits a tiny puff of ash and steam on November 29, 2014. Photo taken and shared by Royce Snapp.
Date:November 29, 2014 4:30 PM
Photographer:Snapp, Royce
PavlofEruption cloud/ plume/ column, Glacier, Steam, Stratovolcano, Volcano
thumbnail
Caption:Lava flows and lahar deposits on the northwest flank of Pavlof volcano. Photo taken approximately 50 miles WNW of Pavlof aboard a fishing vessel on the afternoon of November 26, 2014. Photo courtesy of Levi Musselwhite.
Date:November 26, 2014 2:08 PM
Photographer:Musselwhite, Levi
PavlofDebris flow/mudflow/landslide/lahar, Lava flow
thumbnail
Caption:Annotated Terra-MODIS satellite image from November 25, 2014, showing both the new lava flow at Pavlof and a steam plume at Shishaldin.
Date:November 25, 2014 12:50 PM
Photographer:Waythomas, Chris
Pavlof, ShishaldinLava flow, Steam
thumbnail
Caption:View from King Salmon, November 24, 2014, looking southeast, of a vigorous fumarolic plumes from Mount Martin. Martin has a long-lived, active fumarole field that often produces impressive steam plumes under optimal atmospheric conditions. Photo courtesy of Richard Russell.
Date:November 24, 2014 3:21 PM
Photographer:Russell, Richard
MartinFumarolic activity
thumbnail
Caption:View from King Salmon, November 24, 2014, looking southeast, of a vigorous fumarolic plumes from Mount Martin. Martin has a long-lived, active fumarole field that often produces impressive steam plumes under optimal atmospheric conditions. Photo courtesy of Richard Russell.
Date:November 24, 2014 2:16 PM
Photographer:Russell, Richard
MartinFumarolic activity
First  < Previous  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  ... Next >  Last  
Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/images/browse.php
Page modified: May 14, 2014 14:08
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS