1957 Alborz earthquake

For the earthquake affecting Iran in December, see 1957 Farsinaj earthquake.
1957 Alborz earthquake
1957 Alborz earthquake is located in Iran
1957 Alborz earthquake
Tehran
Tehran
UTC time1957-07-02 00:42:26
ISC event886779
USGS-ANSSComCat
Local dateJuly 2, 1957 (1957-07-02)
Local time04:12:26
MagnitudeMw 7.1
Depth15 km (9 mi)
Epicenter36°16′37″N 52°46′41″E / 36.277°N 52.778°E / 36.277; 52.778[1]
TypeThrust
Areas affectedIran
Total damageUS$25 million
Max. intensityMMI IX (Violent)
Casualties1,500 killed

The 1957 Alborz earthquake struck northern Iran's Mazandaran province at 04:12 local time on 2 July. It had a moment magnitude (Mw ) of 7.1 and occurred at a focal depth of 15 km (9.3 mi).[2][1] The thrust-faulting shock was assigned a maximum Modified Mercalli intensity of IX (Violent). It devastated 120 villages in the Alborz Mountains and caused an estimated 1,500 fatalities. The earthquake also triggered landslides including one that dammed the Haraz River. Some damage was also reported in Tehran, Qaem Shahr and Sari. The total damage was estimated at US$25 million.[3]

  1. ^ a b Cite error: The named reference ISC-GEM was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference ISCeb was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference NGDC was invoked but never defined (see the help page).