Magnitude 7.2 - SOUTHWESTERN PAKISTAN
2011 January 18 20:23:23 UTC
- This event has been reviewed by a seismologist.
|Depth||68 km (42.3 miles) set by location program|
|Distances||50 km (30 miles) WSW of Dalbandin, Pakistan|
260 km (160 miles) W of Kalat, Pakistan
310 km (190 miles) ESE of Zahedan, Iran
1035 km (640 miles) WSW of ISLAMABAD, Pakistan
|Location Uncertainty||horizontal +/- 6 km (3.7 miles); depth fixed by location program|
|Parameters||NST=241, Nph=241, Dmin=806.9 km, Rmss=1.28 sec, Gp= 25°,|
M-type=teleseismic moment magnitude (Mw), Version=1
- Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.
One person killed at Garhi Khairo and two people died from heart attacks, one each at Jacobabad and Quetta. Several people injured and at least 200 buildings damaged (V) in Balochistan, expecially in the Dalbandin area. Damage also occurred in Sindh and in southern Punjab. Felt (IV) at Bahawalpur, Karachi and Quetta; (III) at Hyderabad, Islamabad, Khairpur and Lahore. Slight damage occurred in parts of western India. Felt (IV) at Ghaziabad, Gurgaon, New Delhi and Pilani; (III) at Amritsar, Chandigarh, Delhi, Jaipur and Noida. Felt (IV) at Chenaran and (III) at Bandar `Abbas and Zahedan, Iran. Also felt (IV) at Ra's al Khaymah and (III) at Abu Dhabi, Ajman, Dubai and Sharjah, United Arab Emirates. Felt (III) at Kabul and Kandahar, Afghanistan, at Manama, Bahrain and at Muscat, Oman. Felt (II) at Doha, Qatar and at Riyadh, Saudi Arabia. Felt in 11 countries of southern Asia from Ashgabat, Turkmenistan and Samarqand, Uzbekistan to Bangalore, India and from Haridwar, India to Buraydah, Saudi Arabia.
This major earthquake occurred as a result of normal faulting within the lithosphere of the subducted Arabian plate. The present-day tectonic environment of Pakistan is determined by the motions of the Arabian and Indian plates north-northeast with respect to the Eurasian plate at velocities of 35 â 40 mm/y at the longitude of this earthquake. Arabian-plate lithosphere is subducted beneath the Eurasia plate at the Makran coast of Pakistan and Iran, and becomes progressively deeper to the north. The subducted Arabian plate is known to be seismically active to depths of about 160 km. The frequency of moderate and large earthquakes within the subducted Arabian plate is not high compared with the frequency of such events in some other subducted plates worldwide, but several earthquakes have occurred within this slab in the region of today's event over the past 30 years, including a magnitude 6.7 shock two hundred kilometers to the southwest in 1983.
Scientific & Technical Information
- Preliminary Earthquake Report
- U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver