Chālūs

Earthquakes near Chālūs through history

From 1900 to October 19, 2026, USGS recorded 3 earthquakes of magnitude 6 or more within 100 km of Chālūs, or 200 km for magnitude 7 and above. The strongest on either list was a magnitude 7.6, twice: in 401 BCE (Rey,Eivan-E-Kay) and on April 20, 1608 (Gilan, W Mazandaran).

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The last 30 days · as of

USGS recorded no earthquake of magnitude 4.5 or more within 100 km of Chālūs in the last 30 days.

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What the record holds

The deadliest was not the strongest: a magnitude 7.4 on June 20, 1990 (Rasht, Qazvin, Zanjan, Rudbar, Manjil), for which NOAA records 40,000 deaths. NOAA’s list of significant earthquakes has 9 here, back to 401 BCE. NOAA records deaths in 4 of the events here, 55,260 in all. The latest on NOAA’s list is a magnitude 6.3 on May 28, 2004 (41 km SSE of Nowshahr, Iran). NOAA’s record here begins in 401 BCE with an earthquake (Rey,Eivan-E-Kay). NOAA lists one tsunami that began within 100 km of Chālūs, and one from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 1 m, on June 20, 1990.

The events

  • May 28, 2004Earthquake · M 6.341 km SSE of Nowshahr, Iran · 35 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
  • June 20, 1990Earthquake · M 7.4Rasht, Qazvin, Zanjan, Rudbar, Manjil · 40,000 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
  • June 20, 1990Tsunami · 1 m hereCaspian SeaNOAA NCEI · Wikipedia
  • April 20, 1608Earthquake · M 7.6 (est.)Gilan, W Mazandaran · 3,000 deaths (NOAA)NOAA NCEI
  • 401 BCEEarthquake · M 7.6 (est.)Rey,Eivan-E-KayNOAA NCEI

Good to know

  • An event counts for Chālūs when it began within 100 km of its centre, or 200 km for an earthquake of magnitude 7 or more. Damage can reach further.
  • USGS counts here start at magnitude 6: the catalogue’s smaller quakes thin out going back, where few instruments listened.
  • NOAA lists significant events only: earthquakes that killed, did about $1 million of damage, reached magnitude 7.5 or intensity X, or raised a tsunami, and eruptions and tsunamis by like measures. Magnitudes before 1900 are its estimates from written accounts.
  • Deaths are NOAA’s total for each event, wherever people died, its tsunami and fires included. A tsunami counts the dead its runup records give for this place: NOAA’s total for a tsunami includes its source quake’s.
  • A tsunami from elsewhere counts where one of its runups killed or rose a metre or more.
  • Counted to October 19, 2026, as is the map. The last 30 days ask USGS again.

How the layers work, where their data comes from and what they can’t tell you: Earthquakes, live, The world through history

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