M7.3 IRAN-IRAQ BORDER REGION on November 12th 2017 at 18:18 UTC
Last update: 18 December 2017 at 09:19 UTC
In the border region between Iran and Iraq a large earthquake of Magnitude Mw 7.3 occurred on the 11th of November leaving at least hundreds of causalities, thousands of injured and large damages on the epicentral area. The earthquake was widely felt, we collected more than 1000 testimonies of people distributed on an area over about a 500 km radius (Fig 1).
This earthquake occurred in the collision borders between the Arabian and Eurasian plate on the Zagros mountains (Fig 2). The thrust mechanism of this event is compatible with a fault which accommodates the convergence of these plates. The shallow depth of its hypocentre explains the intensity of the shaking, as well the possibilities of landslides which may still increase the damages.
Fig. 1 Felt repports compiled at the EMSC Fig 2: Figure Modified from https://www.climate-policy-watcher.org
Moment Tensor from SCARDEC http://geoscope.ipgp.fr/
The regional seismicity is constantly active in the region, however this earthquake is the larger one in the region recorded since the beginning of instrumental seismology on 1960 (Fig3). During its history Iran has been the scenario for very damaging earthquakes, as the case of Bam earthquake of 2003 (Mw 6.5) which killed more than 25.000 people and devastated the epicentral region.
The Iran-Iraq border earthquake was preceded for an event of magnitude 4.3 (foreshock) which alerted the community to leave buildings and had potentially reduced the number of casualties (Fig4). The Iranian seismological centre had also reported many other smaller foreshocks occurred in the epicentral area. Until the moment of this report, more than 200 aftershocks has been recorded, 8 of manitude larger than 4. Many people are out in the cold after the collapse of more than 12.000 homes. Rescue teams are still working in the area. The EMSC expresses its support to the people affected by this earthquake.
- Seismic reports from M. Zare, F. Kamranzad, I. Parcharidis, V. Tsironi (Update on November 22th, 2017).
- Strong motion report from the BHRC and the Iran Strong Motion Network.
Fig. 3 Regional Seismicity from the ISC catalogue from 1960 Fig 4. Foreshocks and aftershocks of the Mw 7.3 earthquake
More information on the main shock is available here.
If you have experienced this earthquake, you are invited to answer the online questionnaire. Your testimony will be useful to update the Intensity map here below, where intensities correspond to the effects of the earthquake.
(generated with the results of the online questionnaire)
(click to enlarge)
You were on the spot and you have taken photos or videos of earthquake effects (on buildings, ground, landscape), please send us your files. Send them by mail or upload them directly from your computer. Just click on the link below :
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Main Shock Epicenter Location
Past Regional Seismicity as from the ISC catalogue (1964-2004) and EMSC Real Time catalogue (2005-today)
Moment Tensors Solutions