4 Costa Rican volcanoes on close watch after M 7.6 earthquake

4 Costa Rican volcanoes on close watch after M 7.6 earthquake

At least four of the seven active volcanoes in Costa Rica, Arenal (Alajuela), Rincon de la Vieja (Guanacaste), Turrialba (Cartago) and Poás (Alajuela), are in the crosshairs of scientists after 7.6 magnitude earthquake that struck the country on September 6,

Active volcanoes in the world: August 29 – September 4, 2012

Active volcanoes in the world: August 29 – September 4, 2012

New unrest has been noticed around 7 volcanoes, ongoing activity was reported for 10 volcanoes. This report covers active volcanoes in the world recorded from August 29 – September 4, 2012 based on Smithsonian/USGS criteria.The Weekly Volcanic Activity Report is a

Gravity change reveals magma’s underground movements

Gravity change reveals magma’s underground movements

Monitoring the subtle change in Earth’s gravity and its effects may reveale some details about movements of magma deep inside volcano. After monitoring the gravity at one of the world’s most active volcanoes – Kīlauea volcano on Hawaii, scientists discovered a

New eruptive phase with powerful explosions, Krakatau volcano, Indonesia

New eruptive phase with powerful explosions, Krakatau volcano, Indonesia

A new phase of activity has started at Krakatau volcano. A large explosion occurred early today September 3, 2012 (01:32 UTC) and produced an ash plume that reached 14,000 ft (4.2 km) according to Darwin VAAC.Volcanic ash from the increasingly active Anak Krakatau

Plume seen rising from Mount Hodson, Visokoi Island, South Sandwich Islands

Plume seen rising from Mount Hodson, Visokoi Island, South Sandwich Islands

The plume from Mount Hodson can be seen rising just to the northwest of center and curving in an arc to the northeast on latest MODIS satellite image. On August 28, 2012, a large volcanic plume rose from the Mount Hodson volcano on remote Visokoi Island, interacting

Large explosive eruption with ash up to 12 km, Bezymianny volcano

Large explosive eruption with ash up to 12 km, Bezymianny volcano

A large explosive eruption took place at Kamchatkan stratovolcano Bezymianny explosive eruption on September 2, 2012. According to seismic data by KB GS RAS, the explosive eruption began at 07:16 UTC. According to visual data, ash plumes rose up to 10 – 12 km (32…

Active volcanoes in the world: August 22 – August 28, 2012

Active volcanoes in the world: August 22 – August 28, 2012

New unrest has been noticed around 6 volcanoes, ongoing activity was reported for 11 volcanoes. This report covers active volcanoes in the world recorded from August 22 – August 28, 2012 based on Smithsonian/USGS criteria.The Weekly Volcanic Activity Report is a