March 08 , 2017. Kilauea , Cleveland , Piton de la Fournaise , Popocatepetl .

Home / Alaska / March 08 , 2017. Kilauea , Cleveland , Piton de la Fournaise , Popocatepetl .

March 08 , 2017. Kilauea , Cleveland , Piton de la Fournaise , Popocatepetl .

March 08 , 2017.

 

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

Activity Summary:
Kīlauea Volcano continues to erupt at its summit and at the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō is entering the ocean at Kamokuna and is feeding surface flows on and above the pali, and on the coastal plain, inland from the ocean entry. These lava flows pose no threat to nearby communities at this time. The summit is deflating, and the lava lake was 33 m (~108 ft) below the Overlook crater rim this morning. Seismicity in the upper East Rift Zone has returned to typical levels.

 

Summit Observations:
Tiltmeters at Kīlauea’s summit recorded continued deflationary tilt over the past day. The lava lake dropped and was 33 m (~108 ft) below the Overlook crater rim this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Summit tremor continues to fluctuate in response to variations in lava lake spattering. Average daily summit sulfur dioxide emission rates were about 3,000 metric tons/day last week, the most recent time when conditions permitted measurements. Seismicity in the upper East Rift Zone has returned to typical levels over the past day, with just a few small earthquakes.

Puʻu ʻŌʻō Observations:
Webcam images over the past 24 hours show persistent glow at long-term sources at Puʻu ʻŌʻō, including the pit on the west side of the crater that holds a small lava pond. There were no significant changes in East Rift Zone seismicity over the past 24 hours. The tiltmeter at Puʻu ʻŌʻō recorded deflationary tilt over the past day. The sulfur dioxide emission rate from all East Rift Zone vents was about 250 metric tons/day when last measured on February 22, 2017.

 

L’image contient peut-être : plein air et nature

Lava Flow Observations:
The episode 61g flow is still active and entering the ocean at Kamokuna. Webcam views indicate continued small breakouts on the pali and coastal plain. Webcam views show that the breakout on the upper 61g flow field continues to be active. None of these flows pose a threat to nearby communities at this time.

Source : HVO

Photo : David Ford , Bruce Omori .

 

Cleveland , Alaska :

52°49’20 » N 169°56’42 » W,
Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Slightly elevated surface temperatures were observed in a satellite image over the past day. Web camera views were obscured by clouds. No other activity was observed in cloudy satellite images during the past 24 hours. No significant volcanic activity has been detected in seismic or infrasound data.

 

Cleveland volcano is monitored with a limited real-time seismic network, which inhibits AVO’s ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning and satellite data.

Source : AVO

Photo : AVO

 

Piton de la Fournaise , La Réunion :

Seismicity

One week after the end of the eruption of 31 January – 27 February 2017, the Piton de la Fournaise volcanological observatory recorded two superficial volcanic tectonic earthquakes (0 to 2 km deep) in one week under the summit craters.

 

Since March 03, the deep seismicity decreases.

Deformation

The inflation of the terminal cone that was maintained during the eruption continues (Figure 1).

 

Figure 1: Illustration of the deformation in the last twelve months (eruptions of 26-27 May, 11-18 September 2016 and 31 January – 27 February 2017 are shown in yellow). Here is shown a baseline (distance between two GPS receivers) crossing the Dolomieu crater from north to south (in black the raw data, in blue the smoothed data over a week). A rise is synonymous with elongation and therefore swelling of the volcano; Conversely, a decrease is synonymous with contraction and therefore with deflation of the volcano. (© OVPF / IPGP)

Gas Geochemistry
The flows of SO2 into the air are below the detection threshold.

 

Source : OVPF

Photo : Archive

 

Popocatepetl , Mexico :

7 March 11.00 (1700 GMT March 07)

Over the past 24 hours, 173 low-intensity exhalations, accompanied by steam, gas and small amounts of ash, have been recorded through the seismic recordings of the Popocatepetl Volcano Monitoring System. It was identified six minutes of harmonic tremor of low amplitude.

 

During the night and morning, an incandescence appeared in the area of the crater that increased during some episodes.
At the time of this report, there is no visibility on the volcano, but this morning a continuous emission of steam and gas to the east was observed.
CENAPRED asked not to approach the volcano and in particular the crater.

The volcanic alert semaphore of Popocatepetl volcano is located in Amarillo Phase 2.

Source : Cenapred .

Photo : Cristobal Garciaferro

Recommended Posts

Leave a Comment

Nous contacter

Nous ne sommes pas disponibles pour le moment. Mais vous pouvez nous envoyer un email a l'aide du formulaire ci-dessous.

Not readable? Change text. captcha txt

Start typing and press Enter to search