January 31 , 2016. EN. Masaya , Momotombo , Shishaldin , Kilauea .
January 31 , 2016.
Masaya , Nicaragua :
The Masaya Volcano Park was closed due to an increased activity.
Nicaraguan authorities have closed today touristic park of Masaya Volcano National Park, southeast of Managua, due to increased activity and a seismic swarm in progress.
« The Masaya Volcano Park can not be opened while the status of the volcano calls us to be vigilant and on alert, » said the coordinator of the Council of Communication and the Minister of Citizenship, Rosario Murillo.
She explained that the crater of the Masaya volcano, known as « Santiago » and located 23 kilometers southeast of Managua, is active and has caused at least 14 earthquakes shallow, between magnitudes 1.6 and 2.8 on the Richter scale.
The volcano of 625 m is located in the Masaya National Park (54 sq km) and surrounded by a tropical dry forest, growing from porous rocks of ancient eruptions.
The most predominant ecosystems in the park are the tropical dry forest and a lagoon that has its origin in a crater.
About 140,000 tourists visit the park each year, according to official statistics, the main attraction is the edge of the active crater of the volcano, which is called « Santiago ».
The Masaya is one of seven active volcanoes in Nicaragua since 1520 and has recorded at least 18 different activities, including volcanic eruptions of 1772 and 1820, according to official information.
The latest release of Ineter:
At 10:40 p.m. yesterday, an earthquake in the caldera of the Masaya volcano, with a magnitude of 3.0 degrees, reported as being felt by residents of communities surrounding the volcano was registered.
The seismic amplitude in real time (RSAM) has moderate to high values between 100 and 620 units.
These high RSAM values are related to the high energy volcanic tremor due to the magma movement in the crater Santiago.
The lava lake in the two mouths of the floor of the crater Santiago is reported visible.
The mouth in the northeastern part of the crater was reopened, possibly because of the earthquakes that took place last night.
In the southern part of the crater Santiago, there is the formation of a third mouth, which will prolong the activity in the coming days. It is very likely that the lava will also be visible in the third mouth.
Sources : La Estrelle , Ineter.
Photos : Cesar Perez , Christian Heeb .
Momotombo, Nicaragua :
A new explosion of Momotombo took place at dawn on Saturday. People who live in communities near the volcano reported hearing a loud crash with smoke fumes.
At this time he was not registered ash emissions or earthquakes felt in neighboring communities. Members of COMUPRED moved to the site to check and accompany families.
The volcano began its eruptive process since December last year and this is a part of phases of the natural phenomenon .
Civil Defense of Nicaragua and the Nicaraguan Institute of Territorial Studies, INETER, monitor the slopes of Nicaragua’s volcanoes, for the safety and protection of people.
They called on the population to remain calm.
Saturday, January 30 / CD-SINAPRED
The early hours of Saturday, the Momotombo volcano began to expel incandescent materials, according to the images of surveillance cameras of INETER.
The expulsion took place at about 3h45, so the authorities remained vigilant for the activity of the volcano.
According to residents of the region at the time of high activity, explosions before the start of the emissions of lavas have been heard.
The Momotombo is located in the department of Leon with 1297 meters above the level of the sea.
Sources : Tn8.tv , Sinapred .
Photo : elsalvador.com
Shishaldin, Alaska :
54°45’19 » N 163°58’16 » W,
Summit Elevation 9373 ft (2857 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW
Nearly continuous, low-level seismic tremor, as well as small discrete events, continued during the past 24 hours at Shishaldin, and are present at levels above background for the volcano. No activity was observed in satellite images.
Shishaldin volcano, located near the center of Unimak Island in the eastern Aleutian Islands, is a spectacular symmetric cone with a base diameter of approximately 16 km (10 mi). A 200-m-wide (660 ft) funnel-shaped summit crater typically emits a steam plume and occasional small amounts of ash. Shishaldin is one of the most active volcanoes in the Aleutian volcanic arc, with at least 54 episodes of unrest including over 24 confirmed eruptions since 1775. Most eruptions are relatively small, although the April-May 1999 event generated an ash column that reached 45,000 ft above sea level.
Source : AVO
Photo : Werner, Cindy
Kilauea , Hawai :
19°25’16 » N 155°17’13 » W,
Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Eruptive activity continues at Kilauea Volcano’s summit and East Rift Zone. Seismicity and deformation rates throughout the volcano remain at background levels. Scattered lava flow activity continues on the June 27th lava flow field within about 6 km (4 mi) northeast of Pu’u ‘O’o. These flows currently pose no threat to nearby communities.
The lava lake remains active within the Halema’uma’u Overlook crater. The lake surface height fluctuated slightly over the past day during spattering phases and was approximately 38 m (125 ft) below the crater rim this morning. No significant change in tilt was observed at summit tiltmeters over the past day. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. The summit sulfur dioxide emission rate averaged 5,300 metric tons/day on January 21 and 22.
Pu’u ‘O’o Observations:
Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and high on the northeast flank of the cone. Seismic activity remains low at Pu’u ‘O’o. A tiltmeter on the cone recorded no significant change in tilt over the past day. The sulfur dioxide emission rate from all East Rift Zone vents was about 220 metric tons/day when it was last measured on January 21.
June 27th Lava Flow Observations:
Webcam images show continued surface flow activity on the June 27th flow field, with smoke plumes where lava is igniting forest. The active flows are within about 6 km (4 mi) northeast of Pu’u ‘O’o and are not currently threatening any nearby communities.
Source : HVO .
Photos : HVO , Bruce Omori .