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A
moderate earthquake struck the Koyna
region in Maharashtra, India, on 12
March 2000 at 23:33 PM local time resulting in some damage to
property in the Koyna-Warna region of Maharashtra. It had a
magnitude of Mw=5.0 and was felt for close to
28-seconds in the states of Maharashtra, Karnataka and Goa.
The earthquake
was centred 6.9
kilometres ESE of Pachamba (Maharashtra), India,
18.8 kilometres SSW of Koynanagar (Maharashtra),
India,
38 kilometres SE of Chiplun (Maharashtra),
India,
50.8 kilometres W of Karad (Maharashtra),
India,
53.3 kilometres NE of Ratnagiri (Maharashtra), India,
81.8 kilometres NW of Kolhapur (Maharashtra),
India,
143 kilometres SSW of Sangam, Pune (Maharashtra), India,
225 kilometres SSE of Santa Cruz Airport, Mumbai (Maharashtra),
India.
Damage from the
quake was limited to cracks in buildings within the epicentral
region in the Chandoli-Koyna region of
Maharashtra. Two houses, not built to withstand earthquakes
sustained damage in Kasani village and other houses developed
cracks. Cracks in houses were also reported from Dhebewadi (Shirala
tehsil).
Strong tremors were
felt at Karad, Kolhapur, Patan, Ratnagiri and Sangli. Windows and
doors rattled and many people ran outdoors. Slight to moderate
tremors were felt in Pune for about 5-seconds.
Some people awoke
and kitchen utensils were heard rattling. In the Camp area,
a distinct south-to-north "rolling" motion was
felt by one observer. Another person
on the Sassoon Road (Wadia College area) felt the bed shaking and
heard kitchen utensils rattling. The quake was felt by many people
in Bibewadi, Erandwane and Karvenagar areas of Pune. A few people
even went outdoors after experiencing the tremor.
In the Mumbai area it was felt for about
10-seconds. At Dadar, birds were
reported to have been disturbed by the quake. Slight tremors were
also felt at Nashik and Thane in Maharashtra and at Belagaavi in
Karnataka. It was also felt in Goa.
Rail services on the
Konkan Railway were temporarily halted while checks were carried out
on bridges, tracks and tunnels. The Netrawati Express (6636 Down)
and the Sawantwadi-Diva (KR-6) were detained at Ratnagiri for a few
hours due to these safety checks. |
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References
01)
Harvard Centroid Moment Tensor Solution (HRV), Harvard, USA.
02) International Seismological Centre (ISC),
Berkshire.
03) India Meteorological Department (IMD),
Delhi.
04)
Macroseismic information has been compiled by
the ASC from reports by local media and local NGO personnel.
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