Earthquake or Explosion
Seismic Signal Identification in Eastern Russian using Amplitude Phase Ratios Obtained From Analog Records
(Sprache: Englisch)
Discrimination between earthquakes and chemical explosions is a significant problem facing many regional seismic networks around the world. Both earthquakes and chemical explosions are sources of elastic waves; therefore, both are recorded by seismic...
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Discrimination between earthquakes and chemical explosions is a significant problem facing many regional seismic networks around the world. Both earthquakes and chemical explosions are sources of elastic waves; therefore, both are recorded by seismic networks. In this study various types of Pg/Sg amplitude phase ratios are explored as discriminants to distinguish between earthquakes and explosions. Amplitude information from 237 earthquakes (1.5mb4.9, 10∆916 km) and 247 explosions (1.4mb3.9, 6∆752 km) recorded by short period analog seismometers in Eastern Russia were used to calculate amplitude phase ratios of five different types. These amplitude ratios were analyzed separately in two regions: the Yakutia and Magadan regions of Eastern Russia. It was found a tendency of chemical explosions to have higher values than earthquakes for all types of amplitude ratios studied. The best earthquake-explosion discriminants found for both regions allow for the classification of 86-92% of the ratios as being either earthquakes or explosions. This book is addressed to geoscientists, particularly seismologists and geophysicists interested in the field of seismic signal identification.
Klappentext zu „Earthquake or Explosion “
Discrimination between earthquakes and chemical explosions is a significant problem facing many regional seismic networks around the world. Both earthquakes and chemical explosions are sources of elastic waves; therefore, both are recorded by seismic networks. In this study various types of Pg/Sg amplitude phase ratios are explored as discriminants to distinguish between earthquakes and explosions. Amplitude information from 237 earthquakes (1.5mb4.9, 10 916 km) and 247 explosions (1.4mb3.9, 6 752 km) recorded by short period analog seismometers in Eastern Russia were used to calculate amplitude phase ratios of five different types. These amplitude ratios were analyzed separately in two regions: the Yakutia and Magadan regions of Eastern Russia. It was found a tendency of chemical explosions to have higher values than earthquakes for all types of amplitude ratios studied. The best earthquake-explosion discriminants found for both regions allow for the classification of 86-92% of the ratios as being either earthquakes or explosions. This book is addressed to geoscientists, particularly seismologists and geophysicists interested in the field of seismic signal identification.
Autoren-Porträt von Lepolt Linkimer
Geologist and Professor at the University of Costa Rica: Studies of active tectonics at the University of Costa Rica, seismic signal identification at Michigan State University, and crustal structure at the University of Arizona.
Bibliographische Angaben
- Autor: Lepolt Linkimer
- 2007, 200 Seiten, Maße: 17 x 24 cm, Kartoniert (TB), Englisch
- Verlag: VDM Verlag Dr. Müller
- ISBN-10: 383642777X
- ISBN-13: 9783836427777
Sprache:
Englisch
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