Active volcanoes / Aktive vulkaner:

Taal, Philippines 


The Taal-vvolcano is situated in one of the most beautiful nature-areas in the Philippines.
The volcano lies in the middle of a big lake, The Taal lake, a former crater of 30 kilometers
width. The volcano itself also have a lake in its crater, and in the crater is another volcano.

Monday, January 10th, 2004
The Taal seismic monitoring network recorded a series of volcanic earthquakes on January 9.
Of the total nine (9) events recorded, two (2) of these earthquakes were felt first at 07:45 PM
and then on 07:46 PM. The 07:45 PM earthquake was felt in Pira-piraso at Intensity III while
the 07:46 PM event was felt in the same area at Intensity II.
Since 29 October 2004, the alert status of Taal Volcano has been raised to Alert Level I due
to an increased level of earthquake activity, which is presently considered as a low-level episode
of unrest. The two (2) earthquakes felt today are part of this on-going seismic unrest in Taal
Volcano. So far, the Buco Volcano Observatory has not recorded any intensification of seismic
activity that may indicate an imminent eruption. However, PHIVOLCS reiterates its
recommendation that the Main Crater area be off-limits because sudden steam explosions may
occur or deadly concentrations of toxic gases may accumulate. There are also several fissures
traversing the Daang Kastila Trail which, when reactivated with steam emission, are also
potentially hazardous to the people.
Some 300 families left Barangay Pulo in Talisay Sunday night and sought shelter at the public
market and Balas High School. PHIVOLCS advised the public to remain calm, adding that
volcanic quakes do not usually result in tsunamis.

Monday, November 22nd, 2004
Two weeks after Taal Volcano started showing signs of activity, the Philippine Institute of
Volcanology and Seismology (Phivolcs) has maintained the alert level in a 10-km radius
around the picturesque volcano.

The Phivolcs report said its seismic network registered a total of 31 high-frequency volcanic
earthquakes in a span of seven days. It noted that while there had been no visible "steaming
activity of reactivated vent" at the volcano's main crater on Tuesday, there had been "weak
steaming (about) 5 meters high" on Nov. 10. Last week, Phivolcs noted the temperature and
acidity in the lake were at 27 degrees

Monday, November 8th, 2004
From a report from PHIVOLCS on October 29, 2004, 08:00 HRS

The Taal seismic monitoring network began to record significant volcanic earthquakes on
September 23. In general, the number of these type of earthquakes occurring since then and
up to the present has increased, with a maximum 13 earthquakes on October 15.
Some of these earthquakes were instrumentally recorded with relatively large amplitudes
although none were felt by residents on Volcano Island. Initial earthquake locations showed
epicenters dispersed in the vicinity of Main Crater and to the North-Northwest near
Binintiang Malaki and to the South-Southeast near Calauit.

Surface observations, however, did not indicate any significant change in the thermal and
steam emission characteristics of the Main Crater Lake area.
The increased seismicity of Taal Volcano Island is an indication of a low-level episode of unrest
although at this time, there is still no clear indication of an impending eruption.
The ongoing seismic unrest could intensify in the coming days and weeks so that PHIVOLCS
is recommending appropriate vigilance by the public when visiting the island. As one primary
safety measure, PHIVOLCS recommends as off-limits the Main Crater area because sudden
steam explosions may occur or high concentrations of noxious gases may accumulate.
There are also several fissures traversing the Daang Kastila Trail which, when reactivated with
steam emission, are also potentially hazardous to people.



The Taal-volcano has had 34 eruptions since 1572. The most powerfull in 1965.
Since 1991 Taal has been restless, with several quakes, emissions of gas, cracks in the
mountain and high temperatures in the lake.

The Taal-volcano is counted in between - for people - the most dangerous volcanoes on earth.
The capital of the Philippines, Manila, is only 50 kilometers further north.

In an explosive eruption in 1911 as many as 1,335 people were killed by gas and heat.
In 1965 more than 200 were killed by gas, heat and tsunamis. The last big eruption was in 1977.

 USGS, med flotte bilder!
 Taal Volcano- (Germany)
 Taal Volcano Images - Volcano World


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