OMI Volcanic Image and Data Archive

OMI Volcanic Image 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 (0^o 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
Or select a volcano:

		SO₂

Volcano	Date	Daily images	Composites	KMZ	Ash/Aerosols	Notes/Links
	↓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 - 15	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

OMI launched on board AURA July 15, 2004