July 07, 2016. EN. Mt Curry , Planchon-Peteroa , Kilauea , Mauna-Loa .

Home / blog georges Vitton / July 07, 2016. EN. Mt Curry , Planchon-Peteroa , Kilauea , Mauna-Loa .

July 07, 2016. EN. Mt Curry , Planchon-Peteroa , Kilauea , Mauna-Loa .

July 07, 2016.

 

Mt Curry , Zavodovski Island , South Sandwich  :

56.3°S, 27.57°W
Elevation 551 m

On 30 March an eruption at Zavodovski was reported and photographed by observers on a fishing vessel, as well as captured by a satellite image. A small ash plume drifted E, producing ashfall on 1/3 to 1/2 of the island. A photo showed bombs being ejected from the crater. One of the world’s largest (if not the largest) penguin colonies resides on the E side of the island and is home to 690,000 breeding pairs. The eruption occurred during molting season in March, when penguins stay ashore. A satellite image captured in May showed an eruption plume coming through the clouds.

 

Mt Curry

Mount Curry erupting the active vent is on the west side, but the prevailing winds push ash and fumaroles on the opposite side – photo David Virgo / British Antarctic Survey.

The 5-km-wide Zavodovski Island, the northernmost of the South Sandwich Islands, consists of a single basaltic stratovolcano with two parasitic cones on the east side. Mount Curry, the island’s summit, lies west of the center of the island, which is more eroded on that side. Two fissures extend NE from the summit towards the east-flank craters, and a lava platform is located along the eastern coast. Zavodovski is the most frequently visited of the South Sandwich Islands. It was erupting when first seen in 1819 by the explorer Bellingshausen, and the volcano has been reported to be smoking during subsequent visits.

 Mt Curry

Steam clouds rise from glacier-clad Mount Curry, the 551-m-high summit of Zavodovski Island in this aerial view from the south. Icebergs lie off the shores of the 5-km-wide island, the most frequently visited and northernmost of the South Sandwich Islands. Two young eruptive fissures extend NE from the summit toward craters located below the icecap on the east flank and were the source of a lava platform extending toward Pungent Point (right).

Photograph by HMS Endurance (courtesy of John Smellie, British Antarctic Survey).

 

Source: Peter Fretwell, British Antarctic Survey, communication personnelle , GVP , Sherine France.

 

Planchon-Peteroa , Chile :


The level of activity of the complex is at:
LEVEL YELLOW: changes in the behavior of volcanic activity – likely time for an eruption weeks / months.

944 events in connection with rigid material fracturing process called volcano-tectonic (VT) have been registered with a local maximum magnitude (ML) of 3.3. The largest was located 6.3 km to the north (N) of the main crater at a depth of 3.2 km. Similarly, it was ranked 1635 events associated with the fluid dynamics inside the volcano, known as long time events (LP), with a maximum energy of reduced displacement (DRC) of 1.0 cm2 .

Most VT type events were located in an area between the active craters and 6.5 km NNE showing a clear alignment with depths of 6.5 to 8 km, while the earthquake Type LP showed a change in their spectral content , ranging from dominant frequencies between 1.9 and 2 Hz to 4-5 Hz, with a location near the crater area and at depths of 1.5 km.

Planchon Peteroa
The images from the IP camera, showed no abnormal degassing of the main crater, showing a minimum gas column.

According to data obtained by two (2) electronic inclinometers, the strain measurement stability is noted in their components without showing any morphological change of the complex.

The satellite images of the OMI (Ozone Monitoring Instrument‘s) (http://so2.gsfc.nasa.gov/) and NESDIS (National Environmental Satellite, Data, Information Service (http: / /satepsanone.nesdis.noaa.gov) which relate alerts on sulfur dioxide (SO2) into the atmosphere, reported no abnormality in the volcanic complex.

Planchón-Peteroa
Thermal radiation released by the MODVOLC (Moderate Resolution Imaging Spectroradiometer) MODIS on its website (http://modis.higp.hawaii.edu/) and Mirova (Middle InfraRed Observation of volcanic activity) on its website (http : // www.mirovaweb.it/) monitoring systems that indicate significant changes in surface temperature, reported no heat alert in the area associated with volcanic complex.

There are no reports of local authorities or communities about perceived anomalies in the volcanic area.
Although it had observed no changes in surface activity, increasing the VT type of seismicity and the characteristics of the seismicity LP, exceeding the reference level for this complex, suggest the appearance of deep process which involve changes in the internal behavior of the volcanic system. Therefore, the alert level is modified at YELLOW

Source : Sernageomin

 

Kilauea , Hawai :

Lava Update: Flow Nearly 1 Mile From The Ocean

5 JULY 2016. Lava is less than 1.1 miles from the ocean as the 61g flow has crossed half way across the coastal plain near Kalapana. The lava has traveled half a mile since Sunday, when USGS Hawaiian Volcano Observatory scientists last measured the flow front at 1.6 miles from the sea.

Scientists say the amount of channelized lava on the pali has decreased over the past week, but there were still several open channels active today. A new map posted to the USGS website shows the forward progress of the lava flow. Most of the lava is within the boundary of the Hawaii Volcanoes National Park.

 

kilauea

In a media release issued today, National Park rangers again urged the public to view the lava flows from a safe distance. The park service says the closest viewing is from the County of Hawaii Kalapana Lava Viewing Area off Highway 130. “From the park side, hikers can expect a grueling 10-mile roundtrip hike over very uneven and sharp lava rock terrain riddled with earth cracks,” the park service wrote. “There is no trail, and it’s easy to get lost after dark.”

 

kilauea

“There’s definitely been an increase in injuries since the 61G lava activity amplified,” said Chief Ranger John Broward in the media release. “We responded to calls about turned ankles, lacerations, dehydration, and disoriented visitors in the coastal lava plains all weekend. It’s exceedingly important to plan ahead, have proper footwear, and bring plenty of water, or better yet, enjoy the show from the end of the road on either side,” he said.

 

Source :   BIG ISLAND NOUVELLES VIDEO

Photo : Christine Sheppard , HVO.

 

Mauna Loa , Hawai :

19°28’30 » N 155°36’29 » W,
Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

 

mauna loa

Activity Summary:
Seismicity remains elevated above the long-term background level, but no significant changes were recorded during the past week. Global Positioning System (GPS) measurements continue to show ground surface deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone, with recently inferred inflation concentrated mainly in the southwestern part of this magma storage complex.

Source : HVO

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