Earthquakes near Irkutsk through history
From 1900 to October 19, 2026, USGS recorded one earthquake of magnitude 6 or more within 100 km of Irkutsk, or 200 km for magnitude 7 and above. The strongest on either list was an estimated magnitude 7.7 on June 27, 1742 (Lake Baykal (Baikal)).
The last 30 days · as of
USGS recorded no earthquake of magnitude 4.5 or more within 100 km of Irkutsk in the last 30 days.
What the record holds
NOAA’s list of significant earthquakes has 5 here, back to 1742. NOAA records no deaths for any of them. The latest on NOAA’s list is a magnitude 6.3 on August 27, 2008 (10 km N of Baykal’sk, Russia). NOAA’s record here begins on June 27, 1742 with an earthquake (Lake Baykal (Baikal)).
The events
Good to know
- An event counts for Irkutsk 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