Tehran – According to the seismological network of the Institute of Geophysics at the University of Tehran Geophysics, a total of 617 earthquakes were recorded in the spring (April 21-21), showing an increase of 16.8% compared to the number of earthquakes recorded in the same period last year.
The number of earthquakes increased by 10.5% and 7%, respectively, compared to the monthly averages recorded in the first months of spring (March 21 to April 20) and in the past Iranian calendar years (March 2024 to March 2025), the IRNA reported.
Statistically, more than four earthquakes occurred in the country from April 21st to May 21st. According to the IRNA, the Richter scale, which occurred on May 1 in Khorasan Razavi province, had a size of 5.1.
Of the states of the country, 84-year-old Khorasan Razavi experienced the most of the earthquakes, followed by Carman in 68 Semnan and 64 earthquakes. During the same period, 16 earthquakes hit Tehran, one on the Richter scale, 2.2 in size, recorded mainly by Firuzkuh.
According to the Earthquake Network of the Institute of Geophysics at the University of Tehran, a total of 6,272 earthquakes have been recorded nationwide in past calendar years (March 2024 – March 2025).
From the registered earthquakes, 150 were over four on the Richter scale. At least five earthquakes of 4.5 or more have occurred monthly in the country.
The Iranian plateau is located in a highly seismically active region of the world and is known not only for its major catastrophic earthquakes, but also for its natural disasters, particularly earthquake-related disasters.
Iran has about 2% of global earthquakes, but more than 6% of global earthquake casualties in the 20th century have been reported from Iranian earthquakes.
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