OMI Volcanic SO2Image Archive

This archive is not an exhaustive list of all volcanic emissions detected by OMI. Particularly large or otherwise interesting events will be posted here as time permits. This website under development by NOAA is providing near real-time OMI SO2 images of volcanic events.

Images presented in the SO2 column will typically display retrievals from the current operational SO2 algorithm. In some cases, offline experimental algorithms may be implemented. Units are milli-atm-cm, also known as Dobson Units (DU), where 1 milli-atm-cm = 1 DU = 2.68x1016 molecules cm-2 at STP (0o degs C, 1013.25 hPa). Images in the Ash/Aerosols column show the OMI Aerosol Index (AI), which is positive for UV-absorbing aerosols such as volcanic ash, and can be negative for non-UV absorbing aerosols such as sulfate. Note that the scale used varies between plots. For further information please contact us.

For some events we are also providing KMZ files for use with Google Earth.

Choose a year:
2004 | 2005 | 2006 | 2007 | 2008 | 2009

Or select a volcano:

Volcano

Date

Daily images

Composites

KMZ

Ash/Aerosols

Notes/Links

   ↓2009 ↓          
Sarychev, Kuril Islands, Russia June 12, 2009
Jun 12 - 27
movie
 
 
The eruption started on June 12st sending ash plumes in 2 directions.
Redoubt, Alaska March 23, 2009
Mar 23 - 25
Mar 23
 
Mar 23 - 24
The eruption started on March 22nd, around 2238 local (0638 GMT). The composite is a composite of Calispo and OMI data.
   ↓2008 ↓          
Kasatochi, Aleutian Islands, Alaska August 8, 2008
Aug 08 - 13
 
 
 
The eruption started on August 7th.
Okmok, Aleutian Islands, Alaska July 12, 2008
Jul 12 - 20
Jul 12-20 movie
 
 
The eruption started on July 12th.
Cerro Azul, Galápagos Islands May 30, 2008
May 30 - Jun 10
 
 
 
The eruption started on May 29th.
Chaitén, Chile May 2, 2008
May 03 - 09
May 2nd
 
May 2, May 3, May 6 (1746 UT), May 6 (1924 UT), May 9
The eruption started on May 2nd.
Llaima, Chile Jan 1, 2008
 
Jan 02 - 04
 
 
Llaima erupted on the evening of Jan 1. According to the Buenos Aires VAAC, the resulting ash cloud reached an altitude of 12.5 km (41,000 ft). On Jan 4, the volcanic SO2 cloud drifted over Tristan da Cunha in the South Atlantic.
   ↓2007 ↓          
Jebel al-Tair, Yemen Sep 30, 2007
Oct 1 - 11
 
 
 
The first eruption of this Red Sea volcano since 1883. The images show the long-range transport of the SO2 cloud by the subtropical jet stream.
Manda Hararo, Afar, Ethiopia Aug 12, 2007
Aug 13 - 14
 
Aug 13, Aug 14
 
An eruption close to Manda Hararo volcano in western Afar.
Piton de la Fournaise, Réunion Apr 03, 2007
Apr 03 - 09
 
 
 
The eruption of Piton de la Fournaise.
Sheveluch (Shiveluch), Kamchatka, Russia Mar 29, 2007
Mar 29th
 
 
AI - Mar 29th
See SO2 and ash from Sheveluch and SO2 from 2 other volcanoes further south in spite of looking through 500 DU of ozone.
Popocatépetl, Mexico Mar 24, 2007
Mar 24 - 26
 
 
Not available presently
Plumes with < 1000 tons of SO2. No emissions from Colima.
Reventador, Ecuador Mar 21, 2007
Mar 21 - 29
 
 
Not available presently
Tonnages range from 300 to about 1200. Note that not all color ranges are the same.
Tungurahua, Ecuador Mar 02, 2007
Mar 02 - 13
 
 
Not available presently
Continued and steady emissions from Tungurahua.
   ↓2006 ↓    
 
   
Nyamuragira, DR Congo Nov 27, 2006
Nov 28 - Dec 06
Nov 28 - Dec 04
 
Not available presently
Erupted around 1000 on November 27th. The image is a composite from Nov 28 to Dec 4. QT movie (3 Mb)
Rabaul, Papua New Guinea Oct 7, 2006
Oct 07 - 18
Oct 07 - 09
 
Not available presently
The eruption shook windows and rained heavy ash and small stones on the city of Rabaul. QT movie (1.9 Mb)
Fourpeaked, Alaska Sept 17, 2006
Sep 17 - 18
 
 
Not available presently
First historical activity at Fourpeaked.
Tungurahua, Ecuador Aug 02, 2006
Aug 02 - 10
 
 
Not available presently
Typical emissions from Tungurahua on the 2nd, pulsed emissions on the 4th, reduced emissions afterwards.
Tungurahua, Ecuador Jul 27, 2006
Jul 27 - 30
 
 
Not available presently
Possible cloud interference is hiding some of the plume in these images.
Tungurahua, Ecuador Jul 13, 2006
Jul 13 - 15
 
 
AI - Jul 15th
refl - Jul 15th
No new SO2 from Galeras on the 13th. Tungurahua emitting 7-10x more SO2 than usual.
Galeras, Colombia Jul 08, 2006
Jul 08 - 10
 
 
Not available presently
First large burst of SO2 over the last two months.
Tungurahua, Ecuador Jul 03, 2006
Jul 03 - 10
 
 
Not available presently
Looks like wind reversal on the 7th. Galeras burst on the 8th.
Tungurahua, Ecuador Jun 21, 2006
Jun 21
 
 
Not available presently
Tungurahua continuing to put out SO2.
Soufriere Hills, Montserrat, West Indies May 20, 2006
May 20 - Jun 11
 
 
Not available presently
The dome collapsed sending a volcanic plume to 20km that suspended air traffic temporarily. QT movie (3.2 Mb)
Tungurahua, Ecuador May 11, 2006
May 11 - 18
 
 
Not available presently
Tungurahua continuing to put out SO2. Some images near edge of swath.
   ↓2005 ↓          
Sierra Negra, Galápagos Islands Oct 22, 2005
Oct 23 - Nov 01
Oct 23 - Nov 01
 
Not available presently
QT movie (2 Mb) showing eruptions of Fernandina (May 2005) and Sierra Negra.
Anatahan, Mariana Islands Apr 5, 2005
Apr 06 - 10
 
 
Not available presently
A QT movie (34 Mb) (note large file size) shows degassing from Anatahan prior to the April 5 eruption, and several months of SO2 emissions (and typhoons) following it.
Manam, Papua New Guinea Jan 27, 2005
Jan 28 - 31
Jan 28 - 31
 
Not available presently
 
   ↓2004 ↓          
Manam, Papua New Guinea Oct 31, 2004
Oct 31 - Nov 01
 
 
Not available presently
 
Manam, Papua New Guinea Oct 24, 2004
Oct 24 - 25
Oct 24 - 25
 
Not available presently
 

OMI launched on board AURA July 15, 2004