September 01 , 2015. English . Piton de la Fournaise, Colima, Katmai.
September 01 , 2015.
Piton de la Fournaise, La Réunion.
The current eruption continues.
During the weekend, the instruments of the OVPF recorded a continuity in activity with some fluctuations of intensity in the day. The average level of seismic intensity (RSAM on Rivals station) has since 28 August (and to this date August 31, 2015) remained quite high.
Activity Bulletin Monday, August 31, 2015 at 12:00 (Local Time)
The eruption that began August 24, 2015 at 18:50 continues.
Between Saturday, August 29 (21H) to the Sunday, August 30 (18H), bad weather installed on the volcano, have not allowed for a reconnaissance or to have visual feedback using the cameras.
Since ( current night ), good weather returned and the images of the camera Bert confirm that the activity is always important. On the site, the vent most downstream is still active, the lava flows are still partly in a tunnel and into a large permanent arm and several small intermittent streams.
Source : OVPF
Photo : Timaoul Photographies, Drone visite.com
Colima, Mexico :
Elevation 3850 m
Explosions continue to occur from time to time at the volcano. During an overflight on 25 August, researchers from the University of Colima found that as a result of the explosions, the crater had been deepened by 20 meters during the past 2 weeks and is now approx. 60 m deep and 270 m wide, similar to what it was after the large eruption in 1913.
According to the scientists, the volcano’s activity is currently in a decreasing trend, which corresponds to the decreasing size and frequency of explosions recently.
Based on satellite images, webcam views, and notices from the Mexico City MWO, Colima Observatory, and Jalisco civil protection agency, the Washington VAAC reported that during 20-21 and 24 August ash-and-gas plumes from Colima rose to altitudes of 4.2-7 km (14,000-23,000 ft) a.s.l. and drifted W, WNW, NW, NE, and SE. On 18 August an ash plume rose to an altitude of 5.2 km (17,000 ft) a.s.l. and slowly drifted W.
Source : GVP , Volcanodiscovery /T Pfeiffer
Photo : CUIEV
Katmai, Alaska :
58 ° 16’44 « N 154 ° 57’12 » W,
Summit Elevation 6716 ft (2047 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
Strong winds in the Katmai area picked up loose 1912 volcanic ash and carried it east again today, as it also did three days ago on Friday (08/28/15). AVO detected a possible cloud of resuspended ash blowing from the vicinity of Katmai and the Valley of Ten Thousand Smokes across and beyond Kodiak Island.
This phenomenon is not the result of volcanic activity and occurs seasonally in the spring and fall during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Snowy, Griggs, Katmai, Novarupta, Trident, Mageik, Martin) remain at color code GREEN.
Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.
Mount Katmai is located in the United States, in south-western Alaska, at the entrance of the Alaska Peninsula and south of the National Park and Reserve of Katmai. It is surrounded by the Novarupta to the west, the Valley of Ten Thousand smokes, Mount Griggs, Naknek Lake to the northwest, the Snowy Mountain to the northeast, the bay of Kukak to the east, the Strait of Shelikof in the east, southeast and south, the Katmai river valley to the south and the Trident and Kelujik mountains to the southwest.
The lava dome of the Novarupta (dark , characteristic, rounded center), seen from the Mount Katmai, which is surrounded by Falling Mountain, Baked Mountain, and Broken Mountain. The Ten Thousand Smokes Valley, above right, was created by the eruption of the volcano Novarupta in June 1912 .
The top of the mountain is crowned by a caldera of three kilometers wide for four kilometers in length , which one of the edges culminates at 2047 meters altitude. This caldera contains a lake of 250 meters deep which entirely submerged an ancient Island, Horseshoe Island, consisting of a lava dome observed during an ascent of the volcano in 1916, four years after the eruption that created the caldera. The mountain slopes are covered with glaciers post-eruption of 1912 and formed by the snowfall.
Source : AVO , Wikipedia.
Photos : Wikipedia