Short Term Earthquake Forecasts at Koyna, India

被引：18

作者：

Gupta, Harsh ^{[1
]}

Shashidhar, D. ^{[1
]}

Mallika, K. ^{[1
]}

Rao, N. Purnachandra ^{[1
]}

Srinagesh, D. ^{[1
]}

Satyanarayana, H. V. S. ^{[1
]}

Saha, Satish ^{[1
]}

Naik, R. T. B. ^{[1
]}

机构：

[1] Natl Geophys Res Inst CSIR, Hyderabad 500007, Andhra Pradesh, India

来源：

JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA | 2011年 / 77卷 / 01期

关键词：

Earthquake; Nucleation; Forecast; Koyna reservoir; Maharashtra; TRIGGERED EARTHQUAKES; INDUCED SEISMICITY; NUCLEATION; FORESHOCKS;

D O I：

10.1007/s12594-011-0001-z

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Earthquake activity is monitored in real time at the Koyna reservoir in western India, beginning from August 2005 and successful short term forecasts have been made of M similar to 4 earthquakes. The basis of these forecasts is the observation of nucleation that precedes such earthquakes. Here we report that a total of 29 earthquakes in the magnitude range of 3.5 to 5.1 occurred in the region during the period of August 2005 through May 2010. These earthquakes could broadly be put in three zones. Zone-A has been most active accounting for 18 earthquakes, while 5 earthquakes in Zone-B and 6 in Zone-C have occurred. Earthquakes in Zone-A are preceded by well defined nucleation, while it is not the case with zones B and C. This indicates the complexity of the earthquakes processes and the fact that even in a small seismically active area of only 20 km x 30 km earthquake forecast is difficult.

引用

页码：5 / 11

页数：7

共 16 条

[1] Detailed observations of California foreshock sequences: Implications for the earthquake initiation process [J].

Dodge, DA ;

Beroza, GC ;

Ellsworth, WL .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1996, 101 (B10) :22371-22392

[2]

Gupta H.K., 1992, Reservoir Induced Earthquakes

[3]

Gupta H, 2007, CURR SCI INDIA, V93, P843

[4]

Gupta H, 2006, J GEOL SOC INDIA, V68, P149

[5]

GUPTA HK, 1983, B SEISMOL SOC AM, V73, P679

[6]

Gupta HK, 2002, CURR SCI INDIA, V82, P202

[7] A review of recent studies of triggered earthquakes by artificial water reservoirs with special emphasis on earthquakes in Koyna, India [J].

Gupta, HK .

EARTH-SCIENCE REVIEWS, 2002, 58 (3-4) :279-310

[8]

GUPTA HK, 1984, B SEISMOL SOC AM, V74, P863

[9]

GUPTA HK, 2007, J GEOL SOC INDIA, V70, P1091

[10] Mainshocks are aftershocks of conditional foreshocks: How do foreshock statistical properties emerge from aftershock laws [J].

Helmstetter, A ;

Sornette, D ;

Grasso, JR .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2003, 108 (B1)

← 1 2 →