15/06/2015. Sinabung, Kilauea , Sakurajima.
Sinabung, Indonésie :
Pyroclastic flows caused by the collapse of parts of the viscous dome on the top of the volcano began to be more frequent and larger yet. Yesterday, ten flows were generated which are both descended from the SE side and the ENE side, up to 3 km distance.
The eruption, which occurred at 5:12 local time, was reported to be the largest eruptions that took place the past two days.
An official Volcanology and Geological Disaster Mitigation Center’s (PVMBG) at Sinabung monitoring station, Deri Alhidayat, said on his third day of eruption, the at Sinabung spewed hot clouds up to 3,500 meters in the south and 2,500 meters southeast. At its first eruption Friday, he said, the Sinabung released hot clouds that reached up to 3,000 meters south while on its second eruption Saturday pyroclastic flows from the volcano reached 3000 meters southeast
Deri said that the hot clouds released by the eruptions of Sinabung had always moved either to the south or southeast; However, he said, something rare happened during his third day of the eruption. “During the crisis of today, hot clouds of Sinabung moved simultaneously toward the south and south -is. Pyroclastic flows rejected southward reached 3,500 meters, beyond those of the southeast, which reached 2,500 meters. This is because the lava dome is to the south side of Mt. Sinabung, “said Deri to the Jakarta Post on Sunday.
He said that Mt. Sinabung still had enormous potential to erupt and the volume of its lava dome was still big enough. “According to the latest data, the volume of the dome of lava of Sinabung reached 3.3 . million cubic meters . Eruptions that occurred previously have not yet destroyed the lava dome, so there is still the potential for massive eruptions, “Deri said. (EBF)
Source : Volcanodiscovery, The jakartapost.
Photos : Beidar Sinabung , Dedy Sinuhaji , Sadrah Peranginangin
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
Kilauea Volcano continues to erupt at its summit and from its East Rift Zone. Seismicity rates are currently normal beneath Kilauea’s summit. At the East Rift Zone eruption site, surface flows are active within about 8 km (5 mi) of Pu’u ‘O’o . At the summit, the lava lake is still active.
Halema’uma’u Crater, looking west. The dark area on the crater floor consists of recent overflows from the Overlook crater. The Overlook crater is near the left edge of the photo, and a portion of the active lava lake surface can be seen below the rim.
Seismicity rates beneath Kilauea’s summit were at background levels during the past day. Episodic bursts of seismic tremor associated with periods of vigorous spattering within the Overlook vent continue. The deflationary tilt trend that began 12 June, reversed yesterday evening at about 6 pm HST, and tiltmeters in the summit began showing tilt consistent with summit inflation. Since the time of the tilt turn around the surface of the lava lake within the Overlook vent has risen and is currently about 54 m (177 ft) below the current floor of Halema’uma’u, here defined as the new rim of the Overlook vent. Sulfur dioxide emission rates ranged between 2,200-4,700 tonnes/day for the week ending June 9.
Pu’u ‘O’o overflight: Activity continues on the east rift zone. A little pond of lava was still visible within the collapse pit inside of Pu’u ‘O’o crater, while a couple of skylights were also glowing..
Pu’u ‘O’o Observations:
The tiltmeter on the north flank of Pu’u ‘O’o continues to show no significant tilt. Seismicity rates are at background levels. The sulfur dioxide emission rate from all East Rift Zone vents was about 430 tonnes/day when last measured on June 8, 2015.
June 27th Lava Flow Observations:
Webcam images and satellite imagery continue to show active lava from breakouts within an area extending about 8 km (5 mi) northeast Pu’u ‘O’o .
Source : HVO
Photos : Hvo , Bruce OMORI
Sakurajima, Kyushu ,Japon:
31,593 ° N, 130,657 ° E
Elevation 1117 m
JMA reported 14 explosions during 1-5 June from Showa Crater at Aira Caldera’s Sakurajima volcano, some that ejected tephra as far as 1,300 m, and incandescence from the crater that was occasionally visible at night.
Explosive eruptions on 4 June generated small-scale pyroclastic flows that descended the E flank of Showa Crater. The Alert Level remained at 3 (on a 5-level scale).
Source: Agence météorologique japonaise (JMA), GVP
Photo : Naoto Noshidome