El Chichón (México)
Large explosions; voluminous ashfalls; many deaths; first eruption in historic time
Colima (western México)
Lava extrusion continues
St. Helens (Washington, USA)
First large explosion since October 1980; two new lobes added to lava domes
Galunggung (Java,Indonesia)
Heavy ashfall; mudflows; eight killed
Marapi (Sumatra, Indonesia)
30-minute ash ejection
Ushkovsky (Kamchatka Peninsula, Russia)
Glacier surge
Alaid (Kurile Islands, Russia)
Plume on satellite imagery
Kilauea (Hawaii, USA)
Small intrusions into E and SW rifts
Erebus (Antarctica)
Lava lake level lower
Manam (Bismarck Sea, Papua New Guinea)
Strong explosions; pyroclastic flow; seismicity
Langila (New Britain Island, Papua New Guinea)
Incandescent tephra; increased seismicity
Akan (Hokkaido, Japan)
Sudden increase in local seismicity
Sakura-jima (Kyushu, Japan)
Frequent explosions; B-type earthquakes
Usu (Hokkaido, Japan)
Cryptodome growth slows; local seismicity continues
Ruapehu (North Island, New Zealand)
Explosions from crater lake; seismicity summarized
Pacaya (Guatemala)
Flank lava effusion continues
Descabezado Grande (Chile)
New fumarole in main crater
Mehetia (French Polynesia, Pacific Ocean)
Seismic activity stops
Telica (Nicaragua)
Last confirmed eruption on 2 March
Concepcion (Nicaragua)
Small steam and ash eruptions
Momotombo (Nicaragua)
High temperatures at crater fumaroles
Sán Cristóbal (Nicaragua)
Small white plume almost all water vapor
Masaya (Nicaragua)
Bright yellow incandescence seen at night
Mombacho (Nicaragua)
Four hot-springs located
Cerro Negro (Nicaragua)
Small gas plume from crater fumaroles
Atmospheric Effects
Volcanic cloud remains in stratosphere; source still uncertain
El Chichón (México)
4 April stratospheric cloud circles the globe; minor explosive and seismic activity continues
St. Helens (Washington, USA)
Lava extrusion adds new lobe to composite dome
Teahitia (Society Islands, French Polynesia)
Seismicity suggests first historical eruption
Kilauea (Hawaii, USA)
Small fissure eruption in summit caldera
Galunggung (Java, Indonesia)
Explosions and pyroclastic flows
Asama (Honshu, Japan)
Explosions; small pyroclastic flow; ash falls on Tokyo
Sakura-jima (Kyushu, Japan)
Explosion rate declines; gas damages crops
Ruapehu (North Island, New Zealand)
Explosive activity declines
Manam (Bismarck Sea, Papua New Guinea)
Smaller explosions; earthquakes and harmonic tremor
Langila (New Britain Island, Papua New Guinea)
Incandescent tephra; ashfalls; seismicity
Krafla (Iceland)
Slow inflation continues; previous activity summarized
El Chichón (México)
Fatal flood after natural pyroclastic dam fails; stratospheric cloud effects; eruption summary
St. Helens (Washington, USA)
Frequent gas and ash emission; more on May lobe
Long Valley (California, USA)
Seismic swarms; new fumaroles; uplift
Arenal (Costa Rica)
New lava flow moves down SW flank in January
Poás (Costa Rica)
Continued high temperatures and incandescence at the cone
Irazú (Costa Rica)
Fumarolic activity on the NW flank
Turrialba (Costa Rica)
Fumarole temperature measurements
Langila (New Britain Island, Papua New Guinea)
Explosive activity, lava flow and ashfalls
Manam (Bismarck Sea, Papua New Guinea)
Ash emission; slight inflation
Sakura-jima (Kyushu, Japan)
Incandescent tephra, ashfall
Asama (Honshu, Japan)
No further eruptions; vapor emission remains high
Etna (Sicily, Italy)
Small central crater explosions follow earthquakes and higher ground temperatures
Krafla (Iceland)
Ground level high but no eruption
El Chichón (México)
No new explosions; dense stratospheric cloud over N hemisphere
Nyiragongo (DR Congo)
Fountaining feeds new lava lake
Galunggung (Java, Indonesia)
Explosions continue; most of 1918 dome destroyed; 40,000 evacuated
Long Valley (California, USA)
Minor earthquake swarm; additional uplift of resurgent dome since 1980
Kilauea (Hawaii, USA)
Intrusion into the SW rift
St. Helens (Washington, USA)
Gas and tephra plumes; deformation
Guagua Pichincha (Ecuador)
Phreatic explosions; new fumaroles; seismicity
Esmeralda Bank (Mariana Islands, central Pacific Ocean)
Submarine sulfur emission
White Island (New Zealand)
Localized inflation; no eruptive activity
Ruapehu (North Island, New Zealand)
Lake temperature and level drop; no new explosions
Sakura-jima (Kyushu, Japan)
Frequent explosions; tephra cause minor damage
Krafla (Iceland)
Inflation stops without eruption
Atmospheric Effects
Lidar from Hawaii, Japan, and southeastern US; unusual sunrises and sunsets
El Chichón (Mexico)
Stratospheric cloud continues N dispersal
Nyiragongo (DR Congo)
New details on eruption; lava lake rise slows
Galunggung (Java, Indonesia)
Frequent eruptions continue
Raung (Java, Indonesia)
Eruption cloud on 18 July
St. Helens (Washington, USA)
Dome growth begins 17 August
Etna (Sicily, Italy)
Eruption cloud; lava in main crater
Langila (New Britain Island, Papua New Guinea)
Activity declines to occasional Vulcanian explosions
Manam (Bismarck Sea, Papua New Guinea)
Ash emission; weak seismicity; minor deflation
White Island (New Zealand)
Eruption column and seismicity; new crater
Ruapehu (North Island, New Zealand)
No new explosions; lake temperature lower
Long Valley (California, USA)
No new activity
Atmospheric Effects
Cloud movement; lidar measurements; observations from the southwest Pacific area
El Chichón (México)
Bulk of stratospheric cloud remains at low N latitudes
Wolf (Galapagos Islands, Ecuador)
Lava fountaining and flows in caldera and on SE flank
Soputan (Sulawesi, Indonesia)
Explosions eject large plumes
Galunggung (Java, Indonesia)
Frequent explosions continue
St. Helens (Washington, USA)
New lobe extruded onto composite lava dome
Long Valley (California, USA)
Minor seismicity; deformation data summarized
San Cristóbal (Nicaragua)
Continuous gas column; incandescent areas
Telica (Nicaragua)
Ash eruptions also eject scoria and large incandescent blocks
Cerro Negro (Nicaragua)
Minor fumarolic activity
Momotombo (Nicaragua)
Small vapor plume and incandescence in summit crater
Masaya (Nicaragua)
Strong, continuous gas emission; lava lake glow
Rabaul (New Britain Island, Papua New Guinea)
Uplift, shallow seismicity continue 10-year increase
Langila (New Britain Island, Papua New Guinea)
Explosive eruptions; ash to six kilometers
Manam (Bismarck Sea, Papua New Guinea)
Ash clouds, glow at main crater; increased seismicity
Sakura-jima (Kyushu, Japan)
Explosive activity increases then declines; debris flow
Akan (Hokkaido, Japan)
Local seismicity declines
Atmospheric Effects
Northern hemisphere observations and lidar
El Chichón (México)
Small phreatic explosion; little northward movement of stratospheric cloud
Kilauea (Hawaii, USA)
Fissure eruption in summit caldera
St. Helens (Washington, USA)
Deformation, SO2, and seismicity remain low
Seal Nunataks Group (Larsen Ice Shelf, Antarctica)
Two previously unknown recent volcanoes identified
Manam (Bismarck Sea, Papua New Guinea)
Main crater explosive eruption subsides
Langila (New Britain Island, Papua New Guinea)
Vulcanian explosions; ash emissions
Iwo-Jima (Volcano Islands, Japan)
Small phreatic explosions on NW flank
Fukutoku-Okanoba (Volcano Islands, Japan)
Discolored water observed on flights during December 1981-June 1982
Minami-Hiyoshi (Volcano Islands, Japan)
No water discoloration seen since March 1978
Fukujin (Volcano Islands, Japan)
Occasional water discoloration every year since 1977
Galunggung (Java, Indonesia)
Occasional explosions continue
Soputan (Sulawesi, Indonesia)
Explosive activity continues
Santa Maria (western Guatemala)
Eruption causes flooding and evacuations
Etna (Sicily, Italy)
Strombolian activity on central crater floor
Atmospheric Effects
Little stratospheric cloud movement evident in satellite, lidar, and balloon data
Cameroon (Cameroon, W Africa)
Fissure eruption on upper SW flank; lava flow
Nyiragongo (DR Congo)
Lava lake level high, but growing at slower rate
El Chichón (México)
High H2S and NO in plume; slow diffusion of stratospheric cloud
Long Valley (California, USA)
More earthquake swarms
St. Helens (Washington, USA)
SO2 emission declines; no deformation
Masaya (Nicaragua)
Small explosion; strong vapor emission; seismicity
Galunggung (Java, Indonesia)
Explosions continue
Soputan (Sulawesi, Indonesia)
Strongest explosion since eruption began
Lopevi (Central Islands, Vanuatu)
Ash emission
Kusatsu-Shirane (Honshu, Japan)
Phreatic explosion; volcanic tremor
Asama (Honshu, Japan)
Abrupt seismic event increase; explosion two days later
Fuss Peak (Kurile Islands, Russia)
Increased thermal activity
Langila (New Britain Island, Papua New Guinea)
Vulcanian explosions; ashfalls; glow
Manam (Bismarck Sea, Papua New Guinea)
Ash emission; weak glow
Ruapehu (North Island, New Zealand)
No explosive activity
White Island (New Zealand)
Localized inflation continues
Atmospheric Effects
Ejecta from El Chichón reaches both poles; lidar and sunset observations
Cameroon (Cameroon, W Africa)
Strombolian activity; lava flows; landsliding
El Chichón (México)
Dense aerosol cloud spreads slowly northward
Kilauea (Hawaii, USA)
Intrusion into upper E rift
Long Valley (California, USA)
No new earthquake swarms or deformation changes
St. Helens (Washington, USA)
No deformation; seismicity and SO2 emission low
Arenal (Costa Rica)
Lava flows and gas explosions
Poás (Costa Rica)
Maximum fumarole temperatures have declined
Irazú (Costa Rica)
Sulfur odors now always detectable in the summit region
Rincon de la Vieja (Costa Rica )
No activity at the summit crater
Masaya (Nicaragua)
Gas emission continues; incandescence within the inner crater
Momotombo (Nicaragua)
Continued heating of the fumarole field
Concepcion (Nicaragua)
Small gas plume
Etna (Sicily, Italy)
Small explosions, but tephra to 12 km
Okataina (New Zealand)
Shallow earthquakes; no volcanic tremor
Galunggung (Java, Indonesia)
Explosion and lahars
Sakura-jima (Kyushu, Japan)
Explosions decline, but plane encounters plume
Kusatsu-Shirane (Honshu, Japan)
Lake temperatures measured after explosion
Suwanose-jima (Ryukyu Islands, Japan)
November 1981-October 1982 activity
Langila (New Britain Island, Papua New Guinea)
Two large Vulcanian explosions
Manam (Bismarck Sea, Papua New Guinea)
Steady, moderate activity; light ashfalls
Pagan (Mariana Islands, central Pacific Ocean)
Tephra ejection
Atmospheric Effects
Lidar data from Germany and Hawaii; visual observations
Kilauea (Hawaii, USA)
Major eruption in middle E Rift Zone
Long Valley (California, USA)
Earthquake swarms and increased thermal activity
El Chichón (Mexico)
No new activity; aerosol cloud continues dispersal
St. Helens (Washington, USA)
Deformation, seismicity and SO2 emission quiet
Langila (New Britain Island, Papua New Guinea)
Increasingly violent Vulcanian eruptions
Manam (Bismarck Sea, Papua New Guinea)
Light ashfalls; increased seismicity
Ulawun (New Britain Island, Papua New Guinea)
Vapor emission for three days
Sakura-jima (Kyushu, Japan)
Frequent explosive activity, ash ejection; little ash
Kusatsu-Shirane (Honshu, Japan)
Volcanic tremor, phreatic explosion
Mikura Seamount (Izu Islands, Japan)
Earthquake sequence not volcanic
Galunggung (Java, Indonesia)
Tephra ejection continues; new cone
Iliboleng (Lesser Sunda Islands, Indonesia)
Small ash eruption
Ruapehu (North Island, New Zealand)
Moderate inflation; lake temperature lower
Etna (Sicily, Italy)
Incandescent tephra from central crater
Arenal (Costa Rica )
Lava flows remain active
Poás (Costa Rica)
Fumarolic activity; temperature measurements
Irazú (Costa Rica)
Fumarolic activity on the NW flank
Turrialba (Costa Rica)
Activity level unchanged; no activity seen in the E crater
Atmospheric Effects
Dispersal of the stratospheric aerosol cloud continues
1982
