M6.3 Quake Strikes Iran Coast; Minimal Insured Losses Expected: AIR Analysis

April 10, 2013

Catastrophe modeling firm AIR Worldwide has issued a bulletin on the earthquake that struck the southwestern coast of Iran this morning, April 10, 2013. AIR said the quake was magnitude 6.3 and struck 55 miles [88 kms] southeast of Bandar Bushehr.

Initial news reports indicate that at least 37 people have died and over 850 suffered injuries from the quake. AIR noted, however, that “insurance losses are expected to be minimal.”

According to the United States Geological Survey (USGS), the earthquake occurred at 3:22 p.m. local time (11:52:50 UTC) and struck at a depth of 10 kilometers (6 miles). The main shock was followed by six aftershocks, according to the Iran Seismological Centre, the strongest of which was M5.3.

AIR said the epicenter was “located at 28.5° North latitude and 51.59° East longitude,” and that it “rattled windows and caused chandeliers to shake in Bandar Bushehr; there were reports of buildings shaking in other Gulf countries, including Bahrain, United Arab Emirates, and Qatar. Workers in Qatar were reported to have been evacuated from high-rise buildings as a precautionary measure.”

The report also said Iran’s sole nuclear power station had experienced “strong shaking.” It is located “about 18 km (11 miles) south of Bandar Bushehr, but operations were reported to be unaffected,” AIR said. “The Russian company that built the nuclear reactor claims that the situation is normal there: employees continue to work and radiation is within normal levels.

“Two helicopters were sent to survey the damage in the affected area. Traditional residential structures in Iran are typically of adobe construction, which exhibits very poor seismic performance. Significant structural damage and collapse is possible under strong ground shaking. In 2006, the M6.6 Bam, Iran earthquake destroyed some 50,000 homes.”

According to AIR, the seismotectonics of southern Iran are “dominated by the convergence between Arabian and Eurasian plates. The M6.3 earthquake that struck southern Iran today occurred as a result of northeast-southwest oriented thrust-type motion in the shallow crust of the Arabian plate. Today’s event was an intraplate event, occurring almost 300 km south of the main plate boundary, but it will be difficult to identify the fault that caused it, as this event likely did not break the surface.”

Source: AIR Worldwide and news reports

Topics Profit Loss Earthquake

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