Source: Volcano Discovery - 1/24/13, By T
&md5=cb5a84521d79187f7be14236e1d3eabf?file=uploads%2Fpics%2FCONE_SHZ_EC_--.2013012400.gif&width=1000m&height=600m&bodyTag=<body bgcolor%3D"black">&wrap=<a href%3D"javascript%3Aclose()%3B"> | <%2Fa>&md5=a305658dd0229685b6312a4b78673424 "Current seismic signal from Reventador (CONE station, IG)")
Current seismic signal from Reventador (CONE station, IG)
&md5=e2d02109a96068c972ac59b5b60b75f3?file=uploads%2Fpics%2Ffwvz-seismic-drum_01.png&width=1000m&height=600m&bodyTag=<body bgcolor%3D"black">&wrap=<a href%3D"javascript%3Aclose()%3B"> | <%2Fa>&md5=13efaaa95e02d517d875adf5c946d475 "Current seismic recording at Ruapehu (Far West station, GeoNet)")
Current seismic recording at Ruapehu (Far West station, GeoNet)
&md5=4988c01c98628e77fa562ec31476fcfa?file=uploads%2Fpics%2FSTR8_EHZ_IT.0001_03.gif&width=1000m&height=600m&bodyTag=<body bgcolor%3D"black">&wrap=<a href%3D"javascript%3Aclose()%3B"> | <%2Fa>&md5=04dcb6d3251529b3ecb3e2c7f8f248a3 "Today's seismic signal from Stromboli (ST8, INGV)")
Today's seismic signal from Stromboli (ST8, INGV)
Reventador (Ecuador): The volcano has now entered a full-scale eruption. Lava flows descending on the flanks and glow at the summit were observed. A tall steam and ash plume rises 1.5 km above the volcano and drifts west. Additionally explosions have been reported which were heard in the sector of Reventador.
Seismic activity is strong and characterized by strong tremor and explosion signals.
Interestingly, but probably nothing than coincidence, Reventador and Tungurahua which is now calm, two of Ecuador's currently most active volcanoes, seem to alternate each other with phase of strong activity.
Ruapehu (North Island): Current level of earthquakes remains low.
White Island (New Zealand): GeoNet has raised the alert to orange. Over the last 20-30 hours the style of seismic activity has changed. Although the level of volcanic tremor has started to decrease, hybrid volcanic earthquakes have appeared. Hybrid earthquakes are typically associated with the movement of molten material (magma) within an active volcano.
Lokon-Empung (North Sulawesi, Indonesia): A new, relatively large explosion occurred this morning at 5am local time. The online newspaper KabarCepat mentioned that the explosion was heard up to 6 km away.
Following the initial eruption, the volcano continued to produce a strong steam plume, interrupted by smaller explosions for almost all day. More than 3 mm of ash were deposited 4 km to the NE in Kinilow.
Bagana (Bougainville Island, Papua New Guinea): Thermal hot spots and SO2 plumes are often visible on satellite data. This indicates that some (weak) activity is present at the volcano.
Taal (Luzon, Philippines): Philvolc's seismic network recorded seven (7) volcanic earthquakes during the past 24 hours. Increased numbers of earthquakes have now been occurring for several days and this is certainly something to monitor.
Although other parameters show no significant changes, it could be an early harbinger of something in the making.
Stromboli (Eolian Islands, Italy): Activity, judged from tremor and explosion signals remain lower than during past week. The latest evaluation by INGV from 22 Jan described medium-low tremor levels.
Volcano Activity Summary for 24 Jan 2013:
Currently erupting:
Ambrym (Vanuatu): active lava lakes in several craters (updated 11 Jan 2013)Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 14 Dec 2012)
Erebus (Antarctica): active lava lake in summit crater (updated 21 Jan 2012)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Etna (Sicily, Italy): small strombolian activity in NSEC (updated 23 Jan 2013)
Fuego (Guatemala): effusion of la lava flow, small strombolian explosions (updated 23 Jan 2013)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Kilauea (Hawai'i): lava lakes in Halemau'uma'u and Pu'u 'O'o, lava flows on coastal flat and weakly active ocean entries (updated 15 Jan 2013)
Kizimen (Eastern Kamchatka (Russia)): growing lava dome, lava flow on eastern flank, avalanches (updated 23 Jan 2013)
Kliuchevskoi (Kamchatka): strombolian activity in summit crater (updated 11 Jan 2013)
Lokon-Empung (North Sulawesi, Indonesia): almost daily explosions (updated 24 Jan 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 17 Dec 2012)
Ol Doinyo Lengai (Tanzania): spattering and lava flows of natrocarbonatite lava inside the summit crater (updated 9 Dec 2012)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): ash explosions (updated 22 Jan 2013)
Raung (East Java): mild strombolian eruption inside the crater (updated 8 Nov 2012)
Reventador (Ecuador): growing lava dome, occasional explosions, strong tremor (updated 24 Jan 2013)
Sakurajima (Kyushu): 0-3 weak to moderate vulcanian-style explosions per day, ash clouds up to 2-3 km altitude (updated 23 Jan 2013)
Santa María / Santiaguito (Guatemala): advancing viscous active lava flows, weak occasional explosions (updated 23 Jan 2013)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): slow dome growth, occasional explosions and pyroclastic flows (updated 21 Jan 2013)
Stromboli (Eolian Islands, Italy): strong strombolian explosions, intermittent small lava overspills (updated 24 Jan 2013)
Tolbachik (Kamchatka, Russia): effusion of fluid lava flows (updated 23 Jan 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 2 Aug 2012)
Eruption warning / minor activity:
Bagana (Bougainville Island, Papua New Guinea): occasional ash explosions (updated 24 Jan 2013)Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 11 Jan 2013)
Chirpoi (Kurile Islands, Russia): thermal anomaly at summit crater, steaming (updated 9 Jan 2013)
Colima (Western Mexico): rockfalls, intermittent ash emissions (updated 23 Jan 2013)
Copahue (Chile/Argentina border): seismic swarms (updated 23 Jan 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 7 Nov 2012)
Galeras (Colombia): degassing, occasional ash venting (updated 23 Jan 2013)
Gorely (Southern Kamchatka): strong steaming (updated 23 Jan 2013)
Heard (Australia, Southern Indian Ocean): thermal anomaly at summit crater (updated 30 Dec 2012)
Ibu (Halmahera, Indonesia): Thermal anomalies indicate continuing eruption, possible lava dome growth (updated 18 Oct 2012)
Karangetang (Siau Island, Sangihe Islands, Indonesia): hot spot visible at the summit (updated 2 Jan 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 11 Jan 2013)
Kirishima (Kyushu): degassing, slightly increased seismic activity (updated 30 Jul 2012)
Krakatau (Sunda Strait, Indonesia): strong degassing (updated 1 Oct 2012)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 25 Sep 2012)
Manam (Papua New Guinea): steaming, ash emissions (updated 17 Jan 2013)
Marapi (Western Sumatra, Indonesia): frequent small ash emissions (updated 11 Dec 2012)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Nevado del Ruiz (Colombia): steaming, low-level seismic unrest (updated 23 Jan 2013)
Nyamuragira (DRCongo): strong degassing from summit crater (updated 27 Apr 2012)
Pagan (Mariana Islands): steaming, thermal anomaly (updated 12 Dec 2012)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 21 Jan 2013)
Poas (Costa Rica): Small phreatic explosions on 29 October (updated 30 Oct 2012)
Popocatépetl (Central Mexico): steaming, about 1 weak explosion per hour, crater glow (updated 23 Jan 2013)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sangay (Ecuador): no recent explosions reported (updated 7 Aug 2012)
Soputan (North Sulawesi, Indonesia): new eruption on 18 (updated 9 Nov 2012)
Soufriere Hills (Montserrat, West Indies (UK)): occassional small pyroclastic flows by rock falls (updated 27 Sep 2012)
Suwanose-jima (Ryukyu Islands): steaming, occasional weak eruptions, elevated seismicity (updated 3 Oct 2012)
Tinakula (Santa Cruz Islands, Solomon Islands): steaming, possibly ash eruptions (updated 13 Nov 2012)
Turrialba (Costa Rica): vigorous steaming, occasional phreatic explosions (updated 18 Dec 2012)
Ulawun (New Britain, Papua New Guinea): ash emissions and rumblings heard (updated 2 Jan 2013)
Villarrica (Central Chile): weak deep-seated explosive activity, steaming (updated 20 Jan 2013)
White Island (New Zealand): vigorous degassing, strong hydrothermal activity (updated 24 Jan 2013)
Restless / uncertain activity:
Aoba (Vanuatu): steaming, degassing (updated 26 Dec 2012)Arenal (Costa Rica): continua la fase de reposo, emisión de gases (updated 30 Dec 2012)
Askja (Central Iceland): increased seismicity (updated 14 Dec 2012)
Bárdarbunga (Iceland): earthquake swarm (updated 23 Jan 2013)
Brennisteinsfjöll (Reykjanes Peninsula, SW Iceland): earthquake swarms (updated 7 Oct 2012)
Bromo (East Java, Indonesia): seismic unrest, steaming (updated 3 Oct 2012)
Campi Flegrei (Phlegrean Fields) (Italy): sciame sismico (updated 7 Jan 2013)
Chaitén (Southern Chile and Argentina)
Changbaishan (China / North Korea border): increased seismic and degassing activity, deformation (updated 29 Sep 2012)
Cleveland (Aleutian Islands, Alaska): Alert Level for Cleveland lowered to Yellow (updated 22 Nov 2012)
Concepción (Nicaragua): seismic unrest (updated 23 Jan 2013)
Cumbal (Colombia): continuing seismic swarms (updated 23 Jan 2013)
El Hierro (Canary Islands, Spain): earthquake swarm since 31 Dec 2012 (updated 2 Jan 2013)
El Misti (Peru): earthquake swarms (updated 29 Aug 2012)
Gamkonora (Halmahera): alert level lowered to yellow (updated 14 Sep 2012)
Gaua (Vanuatu )
Havre Seamount (Kermandec Islands): pumice rafts drifting across ocean, no new pumice observed (updated 26 Oct 2012)
Hekla (Iceland): Small but very shallow 1.2 magnitude earthquake at 21:13 UTC on 15 Feb 2012 (updated 14 Sep 2012)
Ijen (East Java, Indonesia): increased steaming and seismicity, alert level raised on 24 July (updated 17 Apr 2012)
Irazu (Costa Rica)
Iwo-jima (Volcano Islands): weak degassing, occasional volcanic tremors (updated 22 Jan 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 5 Feb 2012)
Katla (Southern Iceland): occasional seismic swarms (updated 17 Aug 2012)
Kerinci (Sumatra)
Krísuvík (Southwestern Iceland): earthquake swarms (updated 2 Sep 2012)
Kuchinoerabu-jima (Ryukyu Islands)
Kverkfjöll (Eastern Iceland): occasional small earthquake swarms (updated 21 Oct 2012)
Lamington (New Guinea): uncertain reports about ash emissions on 25 March (updated 19 Apr 2012)
Lewotobi (Flores): steaming and seismic activity decreased, alert lowered back to 1 (out of 4) (updated 5 Apr 2012)
Loihi (United States, Hawaiian Islands): Magnitude 4.2 earthquake at Loihi (updated 26 Nov 2012)
Machin (Colombia): elevated seismic activity (updated 21 Jan 2013)
Masaya (Nicaragua): elevated seismic activity (updated 23 Jan 2013)
Mauna Loa (Big Island, Hawai'i)
Mayon (Luzon Island): steaming, increased earthquakes, slight inflation (updated 11 Nov 2012)
Merapi (Central Java): Dome collapse sometime in October (updated 21 Oct 2012)
Monowai (Kermandec Islands, New Zealand): eruption reported 11 Aug (pumice raft) most likely from nearby Havre Seamount (updated 13 Aug 2012)
Mt Fuji (Honshu): earthquakes at the end of January and in February 2012, new craters reported, increasing fumarolic activity (updated 9 Sep 2012)
Nabro (Eritrea): thermal anomaly at summit suggesting weak activity continuing in the summit caldera (updated 30 Jan 2012)
Nevado del Huila (Colombia): degassing (updated 23 Jan 2013)
Pacaya (Guatemala): seismic unrest (updated 22 Jan 2013)
Papandayan (West Java): alert status back to 2 (updated 1 Feb 2012)
Piton de la Fournaise (La Réunion)
Reclus (Southern Chile and Argentina): increased number of earthquakes (updated 31 Aug 2012)
Rinjani (Lombok)
Ruapehu (North Island): seismic unrest (updated 24 Jan 2013)
San Cristobal (Nicaragua): seismic unrest (updated 23 Jan 2013)
San Miguel (El Salvador): seismic unrest (updated 23 Jan 2013)
San Pedro-Pellado (Central Chile and Argentina): seismic swarm (updated 8 Jun 2012)
Sangeang Api (Indonesia): occasional weak steaming (updated 3 Jan 2013)
Sinabung (Sumatra)
Siple (Marie Byrd Land, Western Antarctica): possible steaming detected on 20 June (updated 28 Jun 2012)
Sirung (Pantar Island, Indonesia ): steaming and elevated seismicity (updated 27 May 2012)
Slamet (Central Java): degassing, strong fumaroles (updated 9 Aug 2012)
Sotará (Colombia): Actividad volcán Sotará del 3 al 9 de octubre de 2012 (updated 23 Jan 2013)
Taal (Luzon, Philippines): degassing, elevated seismic activity (updated 24 Jan 2013)
Talang (Sumatra)
Telica (Nicaragua): seismic unrest (updated 15 Nov 2012)
Tiatia (Kunashir Island): weak thermal anomaly (updated 6 Sep 2012)
Tjörnes Fracture Zone (North of Iceland): continuing earthquake swarm (updated 11 Dec 2012)
Tondano (North Sulawesi & Sangihe Islands)
Tongariro (North Island, New Zealand): strong steaming from Te Maari craters, slightly elevated seismic activity (updated 22 Jan 2013)
Tungurahua (Ecuador): occasional ash explosions (updated 23 Jan 2013)
