De : RSOE EDIS <havaria@rsoe.hu&gt;
Envoyé : mercredi 8 mai 2019 12:18
À : Corentin Decaen <cdecaen@geoasia.org&gt;
Objet : RSOE EDIS – Event Report – Volcano Activity : [Taal Volcano] Central Visayas, Philippines, Pacific Ocean – West
Importance : Haute

 

RSOE Emergency and Disaster Information Service, Budapest, Hungary
Event report

May 8th 2019 10:16 AM – Volcano Activity – VA-20190508-67802-PHL

Base information

EDIS Code: VA-20190508-67802-PHL
Event date: May 8th 2019 10:16 AM
Category: Volcano Activity
Continent: Pacific Ocean - West
Country: Philippines
State: Central Visayas
Settlement:
Location: [Taal Volcano]
Coordinate:
14.0112531,120.9976909 (WGS84 decimal)

CAP Information

Category: Geo - Geophysical (inc. landslide)
Urgency: Past - Responsive action is no longer required
Severity: Extreme - Extraordinary threat to life or property
Scope: Public - For general dissemination to unrestricted audiences
Certainty: Observed - Determined to have occurred or to be ongoing

Event details

Taal Volcano’s seismic monitoring network has detected 20 volcanic earthquakes during a 24-hour observation period conducted by the Philippine Institute of Volcanology and Seismology (Phivolcs) of the active volcano in Batangas. The tremors were monitored from 8 a.m. Tuesday to 8 a.m. Wednesday. Philvolcs said Taal Volcano continues to be under alert level 1, which means that hazardous eruption is not imminent. Based on its field measurements on May 2 at the western sector of the main crater lake, it noted a decrease in water temperature from 32.8 degrees Celsius (?C) to 32.2 ?C, a decrease in water level from 0.25 meter to 0.18 meter, and decrease in the scale of acidity from 2.98 to 2.87. Ground deformation measurements through precise leveling surveys from March 18 – 27 indicated slight inflation of the edifice consistent with recent results from continuous GPS data. Many volcanoes are known to have inflated before eruptions. While there is no imminent threat of eruption, Phivolcs still reminded to stay off the main crater due to possible sudden steam explosions and high concentrations of toxic gases. The northern portion of the main crater rim, in the vicinity of Daang Kastila trail, may also become hazardous when steam emission along existing fissures suddenly increases.

Event map

Google Maps for the region of the event


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Corentin DECAEN

Corentin

Foundor of GeoAsia Spécialiste Chine/Japon

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