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M3.5 Ariyalur Earthquake, 2011

Date:

12 August 2011

Epicentre:

SSE of Ariyalur, Tamil Nadu

Time:

06:06:32 UTC (11:36:32 IST)

Latitude:

11.100 N (IMD)

Longitude:

79.100 E (IMD)

Depth:

33 kms (IMD)

Magnitude:

M?=3.5 (IMD)

Additional Info


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A mild earthquake (M3.0 to 3.9 termed as "mild") occurred in the Kaveri basin in Ariyalur district, Tamil Nadu on 12 August 2011 at 11:36 AM local time in India. It had a magnitude of M?=3.5 and was felt in several districts in southern Tamil Nadu. It was blamed for one death and minor damage in the districts of Kudalur, Perambalur, Tiruchirapalli and Villupuram.

The earthquake was centred 5.3 kms SSE of Ariyalur (Tamil Nadu), India,
19.3 kms SW of Sendurai (Tamil Nadu), India,
33 kms NW of Kumbakonam (Tamil Nadu), India,
34.6 kms N of Thanjavur (Tamil Nadu), India,
54.3 kms NE of Tiruchirapalli (Tamil Nadu), India,
85.9 kms NE of Pudukottai (Tamil Nadu), India,
104 kms SW of Kudalur (Tamil Nadu), India,
121 kms ESE of Salem (Tamil Nadu), India,
170 kms NE of Madurai (Tamil Nadu), India,
255 kms SW of Chennai (Tamil Nadu), India.

If you felt this earthquake, please click here to let us know!

A 65-year old man died of a heart attack in Periya Siruvathur near Kallakurichi in Villupuram district as a result of this earthquake.

Shaking was felt in several districts in southern Tamil Nadu such as Kudalur (Cuddalore), Namakkal, Perambalur, Salem, Thiruchirapalli and Villupuram. In Salem district mild tremors were felt at Arasanur, Athur, Manivilundan, Periyeri, Thalaivasal and Viranur. Several buildings developed cracks in Salem district.

Strong tremors were felt in Perambalur district causing panic and people ran outdoors. The wall of a building developed cracks near Valikantapuram. The entrance of a house was also damaged at Valikanthapuram while elsewhere loose objects were knocked over in a Shiva temple. Elsewhere in the district it was felt at Eraiyur, Palaiyur, Veppanthattai and Venpavur.

In Tiruchirapalli district, people in the city of Thiruchirapalli (Trichy) went outdoors in panic. Several students at Ramakrishnan Engineering college ran outdoors in panic. It was also felt at Lalgudi, Siruganur, Thuvakudi, Uraiyur and Valayur Road. Elsewhere in the district it was felt at Kannamangalam. In a few places loose objects were knocked down.

In Villupuram it was felt  at Chinnasalem, Kanankur, Kallakurichi, Neyvannai, Palarampattu, Thiyagadurgam and Ulunthurpet. At Ulundurpet, people ran outdoors in panic. In Thiyagadurgam, students at a training institute at Vadathorasalur fled their building.

In Kudalur district it was felt at Alampatti, Avatti and Thittakudi among other places. People ran outdoors and schools were also closed in the district. Tremors were also felt in some parts of Madurai district.


References
01)
India Meteorological Department (IMD), New Delhi, India.
02) Macroseismic information has been compiled by the ASC from reports by local media and local contacts as well as NGO personnel.

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Map Disclaimer
International boundaries of India (especially Arunachal Pradesh, Jammu & Kashmir, Himachal Pradesh and Uttarakhand) on the displayed map are from Google Maps. These do not conform to the external boundaries of India recognized by the Survey of India. That they are displayed on this page via Google Maps, is only for display purposes and this should not be misinterpreted as an endorsement of these boundaries by the Amateur Seismic Centre (ASC).

Page Updated: 14 Aug 2011 | Website Disclaimer

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