The volcanoseismic crisis of 1996–97 in Nisyros, SE Aegean Sea, Greece
Identifieur interne : 000011 ( Istex/Curation ); précédent : 000010; suivant : 000012The volcanoseismic crisis of 1996–97 in Nisyros, SE Aegean Sea, Greece
Auteurs : L. K. Papadopoulos [Grèce] ; L. K. Sachpazi [Grèce] ; L. K. Panopoulou [Grèce] ; L. K. Stavrakakis [Grèce]Source :
- Terra Nova [ 0954-4879 ] ; 1998-05.
Descripteurs français
- Wicri :
- topic : Séisme, éruption volcanique.
English descriptors
- KwdEn :
- Aegean world, August, Blackwell science, Caldera, Earthquake, Earthquake activity, Eastern part, Episodic unrest, Eruption, External region, Fundamental research, Heterogeneous structure, Internal region, Large calderas, National observatory, Nisyros, Nisyros area, Nisyros island, Nisyros papadopoulos, Nisyros region, Nisyros seismicity, Nisyros volcano, Papadopoulos, Past seismicity, Phlegraean fields, Seismic properties, Seismicity, Thin seismogenic layer, Time interval, Tokyo univ, Typical pattern, Volcanic, Volcanic eruption, Volcanic eruptions, Volcanic island, Volcanoseismic crisis.
- Teeft :
- Aegean world, August, Blackwell science, Caldera, Earthquake, Earthquake activity, Eastern part, Episodic unrest, Eruption, External region, Fundamental research, Heterogeneous structure, Internal region, Large calderas, National observatory, Nisyros, Nisyros area, Nisyros island, Nisyros papadopoulos, Nisyros region, Nisyros seismicity, Nisyros volcano, Papadopoulos, Past seismicity, Phlegraean fields, Seismic properties, Seismicity, Thin seismogenic layer, Time interval, Tokyo univ, Typical pattern, Volcanic, Volcanic eruption, Volcanic eruptions, Volcanic island, Volcanoseismic crisis.
Abstract
After a repose time of several years, intense, shallow seismic activity started at the end of 1995 in the volcanic region of Nisyros island. By the end of October 1997, hundreds of shocks had been recorded, the largest one being that of 27 August 1997 with Ms = 5.3. The activity is highly clustered in space and time, while the b‐value of the magnitude‐frequency relation was found equal to 1.67. Similar b‐values were determined from Nisyros seismicity registered between 1911 and 1980 and from a 1997 microearthquake dataset. These properties seem to be a characteristic of the region, rather than precursor of a forthcoming eruption and make Nisyros similar to other large calderas of the Earth where the episodic unrest with local swarm‐like earthquake sequences separated by months or years is a typical pattern that do not culminate in a volcanic eruption.
Url:
DOI: 10.1046/j.1365-3121.1998.00184.x
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By the end of October 1997, hundreds of shocks had been recorded, the largest one being that of 27 August 1997 with Ms = 5.3. The activity is highly clustered in space and time, while the b‐value of the magnitude‐frequency relation was found equal to 1.67. Similar b‐values were determined from Nisyros seismicity registered between 1911 and 1980 and from a 1997 microearthquake dataset. These properties seem to be a characteristic of the region, rather than precursor of a forthcoming eruption and make Nisyros similar to other large calderas of the Earth where the episodic unrest with local swarm‐like earthquake sequences separated by months or years is a typical pattern that do not culminate in a volcanic eruption.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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