Seismic activity in Katla volcano, South Iceland, continues. No less than 200 tremors have registered there in the past 24 hours, Vísir reports. Three quakes in excess of magnitude 3 hit the volcano overnight, the largest one at 4:41 am, of magnitude 3.7. It was preceded by another one of magnitude 3.1 a minute earlier. The third one measured 3.2 at 2:43 am. All three were shallow. Sigurdís Björg Jónasdóttir, natural hazard specialist at the Icelandic Met Office, reported that the seismic activity was constant all night long.
"It's been very lively in Katla overnight, but the tremors are all shallow, and there hasn't been any eruption activity or glacial outburst flood activity, so those of us who are on call are relatively calm, since the situation effectively hasn't changed since yesterday," Sigurdís stated.
Katla volcano is located under the icecap of Mýrdalsjökull glacier. It last erupted in 1918, but has, on average, erupted twice a century.
Streams of lava and large plumes of ash emitted in a dramatic volcanic eruption has forced residents in the state of Colima, Mexico to leave their homes.
One of the most active volcanoes in Central America, the Colima volcano has been erupting slowly since early September.
More than 300 people were ordered on Friday to evacuate from two villages in the foothills of Volcan de Fuego, the 3,839-meter mountain which towers over the states of Jalisco and Colima.
A timelapse taken from a webcam observing the peak shows its most recent fiery outburst, raining molten rock and ash on the surrounding area.
Mount Barujari in West Nusa Teggara province of central Indonesia erupted on Tuesday, with ashes potentially enveloping a nearby city and disturbing international flight, a disaster agency spokesman said.
The eruption took place at 14:45 local time with a column of ash rising up to 2 km in the sky, Sutopo Purwo Nugroho, spokesman of the national disaster management agency told Xinhua via phone.
The ash tends to spread to southwest of the crater and fall down on the provincial capital of Mataram city and hamper flight at the Lombok international airport, Sutopo said.
Authorities are preparing more than 300,000 masks for local people, he added.
Indonesia, an archipelago country home to over 16,500 islands, has 129 active volcanoes.
An earthquake of magnitude 3.9 hit Mýrdalsjökull glacier at 1:30 pm today, mbl.is reports. A few aftershocks have registered, but there is no sign of volcanic activity in the area, according to the Icelandic Met Office.
The source of the quake was the south side of the Katla volcano caldera, which is under the ice cap of Mýrdalsjökull glacier. The area is being monitored day in and day out by the Icelandic Met Office.
There was less seismic activity in Mýrdalsjökull glacier last week than during the previous week. On August 29, two earthquakes of magnitude 4.5 registered in the northern part of the Kaltla volcano caldera. Those were the largest quakes to hit the area since 1977.
Costa Rica's central Turrialba Volcano on Thursday erupted for the third time this week, sending a plume of ash and gas more than 2,000 meters above the crater.
This latest eruption occurred at 3:20 a.m. (09:20 GMT), Costa Rica's volcano and earthquake monitoring agency Ovsicori said.
Turrialba's strongest eruption to date was just before noon on Monday, when it spewed ash some 4,000 meters into the sky. Earlier that day, it has a smaller eruption.
The volcano, located in the province of Cartago, 37 km east of the capital San Jose, has registered intermittent eruptions since late last year.
Ovsicori says the volcanic material expelled is falling mainly to the west of the crater, in the direction of the country's Central Valley, which is home to Costa Rica's most densely populated cities, including the capital.
The Costa Rican authorities suspended operations at the country's main airport yesterday after the nearby Turrialba volcano erupted, sending a thick ash cloud into the sky.
The San Jose international airport was temporarily closed for safety reasons because the volcanic ash could cause problems for planes, the civil aviation authority said.
Airport sources said eight approaching flights were diverted as the order was given, some to the north of the country and others to El Salvador.
Turrialba erupted twice, first at dawn and again just before noon.
The second eruption sent an ash cloud 4,000 meters into the air.
The volcano is located 35 kilometres from the capital.
The Shiveluch volcano (3,283m) is the northernmost active volcano in the Eastern Range on the Kamchatka Peninsula
The northernmost active volcano in Kamchatka, Shiveluch, has spewed a seven-kilometer ash column in the air, the local department of the Geophysical Service at the Russian Academy of Sciences told TASS on Monday.
Mount Bulusan in Sorsogon, Bicol spewed a 1.5-kilometer- high ash column Friday afternoon, in a steam-driven explosion.
According to the Provincial Disaster Risk Reduction and Management Office (PDRRMO) in Sorsogon, the phreatic explosion occurred at approximately 4:54 p.m. Friday, and lasted for close to four minutes.
The dark gray ash plume expelled by the volcano drifted towards the northeast, causing ash to fall in Casiguran, Juban, Barcelona, and Gubat.
Alert Level 1, indicating abnormal activity, remains over Bulusan Volcano, said the Philippine Institute of Volcanology and Seismology (Phivolcs) in its 6 p.m. notice.
This indicates that hydrothermal processes are underway beneath the volcano, which may lead to more steam-driven eruptions, the agency said.
It also reminded the public not to enter the 4-kilometer radius Permanent Danger Zone (PDZ).
Researchers are worried Japan's Sakurajima volcano could be primed for a violent eruption. A new study suggests magma is filling the volcano's reservoir and pressure is building. The stage is set, scientists warn, for a repeat of Sakurajima's deadly 1914 eruption. The natural disaster killed 58 people, with lava flows from the stratovolcano lasting several months.
The overflow of magma filled the narrow strait separating the volcanic island from southwestern Japan's Osumi Peninsula, causing flooding in the city of Kagoshima, which has since been nicknamed the "Naples of the Eastern World."
Recently, a team of researchers from the University of Exeter and University of Bristol developed a new method for imaging the underground plumbing system that supplies Sakurajima with its molten rock.
"What we have discovered is not just how the magma flows into the reservoir, but just how great the reservoir is becoming," lead researcher James Hickey said in a news release.
After an "exceptionally high" lava level at the summit of Kīlauea volcano on Saturday, inflation switched to deflation late yesterday afternoon and the lava lake dropped.
Deflation continued overnight and stopped this morning, the USGS Hawaiian Volcano Observatory reported Sunday morning. The lava lake dropped down to 66 feet below the floor of Halemaʻumaʻu Crater this morning.
"It is likely that the summit will begin to inflate, and the lava lake will begin to rise again, sometime today," scientists noted.
Yesterday, the summit lava lake rose to its highest level since May 2015, and earthquakes were also on the rise in vicinity. At one point the lava lake was within 16 feet of the rim. The sloshing lava was clearly visible from Jaggar Museum within the Hawaii Volcanoes National Park.
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