SANTIAGO DE CHILE, 29. Januar 2007 - Seit vergangenen Montag bebt in der rund 2.000 Kilometer südlich der Hauptstadt Santiago de Chile gelegenen Region Aisén (offiziell Undécima región = "elfte Region") die Erde. Unter den 91.000 Einwohnern brach Panik aus, zahlreiche Menschen verlassen das Gebiet. Dies berichtet der chilenische Radiosender Radio Cooperativa.
Einige der über 950 Beben erreichten auf der internationalen Richter-Skala den Wert sieben (Möglicher Höchstwert: zehn).
Während die Einheimischen den immeraktiven, rauchspuckenden Vulkan Hudson für die Erdbeben verantwortlich machen, gehen Experten von einer anderen, noch nicht gefundenen Ursache aus.
Die Menschen befürchten, dass sich die Ereignisse aus dem Jahr 1991 wiederholen könnten, als eine Erdbeben-Welle einen Vulkanausbruch zur Folge hatte, dessen Auswirkungen bis nach Argentinien zu spüren waren. Damals wurde das ganze Gebiet weitläufig mit einem Ascheregen überzogen. Es war einer der größten Vulkanausbrüche im letzten Jahrhundert.
Grü
Bei den jetzigen Beben kamen nach offiziellen Angaben keine Personen zu Schaden. Die Höhe des entstandenen Sachschadens wird erst in einigen Wochen feststehen.
(© argentinienaktuell.com)
Informationen zum Vulkan Hudson:
Wikipedia: Hudson
USGS: Vulcan Hudson
Informationen zum Ausbruch von 1991
Grüsse Crosley
Werbung
Chile: Vulkan Hudson - 950 Erdbeben in einer Woche!
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Stefan (Luzern)
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Chile: Vulkan Hudson - 950 Erdbeben in einer Woche!
Eine eigentliche Katastrophe scheint nicht zu drohen:
"SOUTHERN CHILE QUAKES NOT A SIGN OF PENDING DISASTER
(February 1, 2007) Experts dispatched to southern Chile following a week-long spate of unusual seismic activity in Region XI have concluded the area is not likely to experience a pending natural disaster.
Since January 22, residents in the towns of Puerto Aysén and Puerto Chacabuco have been quite literally shaken up by an astounding 1,700 tremors, only a small but still alarming number of which were noticeable. A few of the small quakes registered as high as 6 on the Mercalli scale.
Locals immediately feared the barrage of seismic activity could indicate a pending volcanic eruption. Nearby Hudson Volcano, located some 85 miles south of Coihaique, last erupted on August 8, 1991. That eruption, the second largest recorded in Chile, was preceded by a similar cluster of tremors and earthquakes (ST, Jan. 25).
Authorities are now calling that a very unlikely scenario. On Monday a team of scientists (made up of a Universidad de Chile seismologist, a geologist from the National Mining and Geologic Service, and a volcanologist from the National Emergency Office) concluded instead that the quakes are originating from a point approximately 12 miles north-west of Puerto Chacabuco and some seven miles below the Aysén fjord.
What’s likely happening, say the experts, is that an underground magma flow is pressuring the tectonic plate below the Aysén fjord. The resulting seismic activity will either continue for an unspecified period of time, eventually diminishing; or the magma flow will push its way to the surface and form a relatively small volcanic cone on the floor of the Aysén fjord.
Either way, residents need not be alarmed, said the area’s regional governor, Vivianne Betancourt.
“Not even the worst case scenario represents a real danger for the community of Puerto Aysén. Puerto Chacabuco has even less to worry about,” she said. “This all means that people can be a lot more relaxed than they have been for the last week.”
SOURCE: LA TERCERA, EL MERCURIO
By Benjamin Witte (benwitte@santiagotimes.cl)"
Quelle: http://www.tcgnews.com/santiagotimes/in ... opic_id=15
En Gruess, Stefan
"SOUTHERN CHILE QUAKES NOT A SIGN OF PENDING DISASTER
(February 1, 2007) Experts dispatched to southern Chile following a week-long spate of unusual seismic activity in Region XI have concluded the area is not likely to experience a pending natural disaster.
Since January 22, residents in the towns of Puerto Aysén and Puerto Chacabuco have been quite literally shaken up by an astounding 1,700 tremors, only a small but still alarming number of which were noticeable. A few of the small quakes registered as high as 6 on the Mercalli scale.
Locals immediately feared the barrage of seismic activity could indicate a pending volcanic eruption. Nearby Hudson Volcano, located some 85 miles south of Coihaique, last erupted on August 8, 1991. That eruption, the second largest recorded in Chile, was preceded by a similar cluster of tremors and earthquakes (ST, Jan. 25).
Authorities are now calling that a very unlikely scenario. On Monday a team of scientists (made up of a Universidad de Chile seismologist, a geologist from the National Mining and Geologic Service, and a volcanologist from the National Emergency Office) concluded instead that the quakes are originating from a point approximately 12 miles north-west of Puerto Chacabuco and some seven miles below the Aysén fjord.
What’s likely happening, say the experts, is that an underground magma flow is pressuring the tectonic plate below the Aysén fjord. The resulting seismic activity will either continue for an unspecified period of time, eventually diminishing; or the magma flow will push its way to the surface and form a relatively small volcanic cone on the floor of the Aysén fjord.
Either way, residents need not be alarmed, said the area’s regional governor, Vivianne Betancourt.
“Not even the worst case scenario represents a real danger for the community of Puerto Aysén. Puerto Chacabuco has even less to worry about,” she said. “This all means that people can be a lot more relaxed than they have been for the last week.”
SOURCE: LA TERCERA, EL MERCURIO
By Benjamin Witte (benwitte@santiagotimes.cl)"
Quelle: http://www.tcgnews.com/santiagotimes/in ... opic_id=15
En Gruess, Stefan