Trisha Shetty

1967 Koynanagar earthquake

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Origin time  22:51:23 UTC
Depth  15 km (9 mi)
Total damage  $400,000
Date  11 December 1967
Magnitude  6.6 Mw
Areas affected  India
Max. intensity  VIII (Severe)
1967 Koynanagar earthquake
Similar  1997 Jabalpur earthquake, 1993 Latur earthquake, 1897 Assam earthquake, 1950 Assam–Tibet earthquake, 1934 Nepal–Bihar earthquake

The 1967 Koynanagar earthquake occurred near Koynanagar town in Maharashtra, India on 11 December. The magnitude 6.6 shock hit with a maximum Mercalli intensity of VIII (Severe). It occurred near the site of Koyna dam, raising questions about induced seismicity, and claimed at least 177 lives and injured over 2,200.

DamageEdit

More than 80% of the houses were damaged in Koyana Nagar Township, but it did not cause any major damage to the dam except some cracks which were quickly repaired. There have been several earthquakes of smaller magnitude there since 1967. The deadly earthquake caused a 10–15 cm (3.9–5.9 in) fissure in the ground which spread over a length of 25 kilometers (16 mi). Some geologists believe that the earthquake was due to reservoir-triggered seismic activity, but senior project officials have repeatedly denied this conclusion.

References

1967 Koynanagar earthquake Wikipedia


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