August 01, 2015. English . Piton de la Fournaise , Raung , Ubinas .
August 01, 2015.
Piton de la Fournaise , La Réunion :
Piton l’a peté….
Change to Alert phase 2-2 Volcano emergency Plan with effect from Friday, July 31, 2015 at 10:00 (local time)
At 9:20 (local time) this morning, the Piton de la Fournaise erupted. The eruptive fissure is located North East of Piton Kapor and extends toward the Nez Coupe Ste Rose
Public access to the enclos Fouqué, whether from the path of Pas de Bellecombe or from any other path, and the helicopter posed in the volcano area is prohibited until further notice.
The national gendarmerie and the national Forest Office were responsible for ensuring the implementation of these security measures on the site.
According to information provided by the volcano observatorythe eruption occurs in the Crater Faujas, northeast of Dolomieu. The eruptive fissure is about 200m long.
The Piton de la Fournaise offers a spectacle for the third time since the beginning of 2015.
The sky, the show is great. On footage shot this Friday, July 31you can admire several lava fountains!
State of the eruption , OVFP bulletin , July 31, 2015. 20h00.
The eruption that began this morning at 9:20 local continues tonight.
Although the level of tremor has decreased slightly throughout the day, the intensity of the event remains important.
A long crack approximately 1 km opened in several hours on a ledge topographic zone in the North East of the Enclos at the Pitons Payenké and Kapor. These cracks escaped a dozen fountains that tonight would be only five. The longest lava flow reached this afternoon the Plain of Osmunds.
Recognition and specimens on site were able to be conducted with the logistical assistance of SAG (Section of the Air Force)
Estimates of flow rates between 28 m3 / s (first) and 11m3 / s (thereafter) were produced from the gas measurements and are confirmed by satellite image analysis.
The plume of volcanic gas reaches tonight 3200-3500 m altitude.
Alert level: ongoing Eruption
Source : OVPF
Photo : OVPF , AFP / Richard Bouet, Clicanoo.
Raung , Indonésie:
8.125 ° S, 114,042 ° E
Elevation 3332 m
PVMBG reported that the eruption at Raung was ongoing during 16-23 July. Ash plumes rose 2 km and incandescence at the crater was visible. Seismicity fluctuated but remained elevated. The Alert Level remained at 3 (on a scale of 1-4), and the public was reminded not to approach the crater within a 3-km radius.
Based on PVMBG information, and satellite-image and pilot observations, the Darwin VAAC reported that during 22-28 July ash multiple ash plumes from Raung rose to varying altitudes of 4.3-5.2 km (14,000-17,000 ft) a.s.l. and drifted as far as 400 km NW, W, SSW, S, and SSE. A news article from 29 July noted that 18 flights at most had been canceled during the previous few days due to the ash plumes, and that the Notohadinegoro Airport (2,100 km SW) had been temporarily closed.
Sources: Volcanic Ash Advisory Centre Darwin (VAAC), Pusat Vulkanologi dan Mitigasi Bencana Geologi , Jakarta Post, GVP.
Photo : narut leksansern
Ubinas, Perou :
RESULTS OF MONITORING WORK
A) Between 18 April and 1 June 2015 the Ubinas volcano seismicity was characterized by various types of earthquakes (LP low-energy , tremors, some volcanos – tectonic VT, and hybrid). However, as the week of June 2 to 8, significant changes were observed and the number of VT earthquakes has sharply increased. Subsequently, on June 14, very energetic hybrid earthquakes were recorded. The following days and during the month of July the seismicity rose sharply , low energy explosions were recorded (0.3 MJ to 4 MJ), but in increasing numbers, with the issuance of moderate ash volumes. On July 25 at 7:03 p.m. HL explosion which reached 507 MJ of energy was recorded, being the strongest ever held in 2015. Fifteen minutes after the explosion, the fallout of ash and lapilli were observed (rock fragments 2 to 3 mm, and some up to 2 cm in diameter) in the cities of Ubinas and Escacha.
Source : IGP / Ingemmet.
Photo : Pumacota, Latintimes .