Earthquakes near Klagenfurt am Wörthersee through history
From 1900 to October 19, 2026, USGS recorded 2 earthquakes of magnitude 6 or more within 100 km of Klagenfurt am Wörthersee, or 200 km for magnitude 7 and above. None reached magnitude 7: the strongest was a magnitude 6.5, twice: on March 26, 1511 (Slovenia: Idrija,Skofja Loka) and on May 6, 1976 (3 km SW of Prato, Italy).
The last 30 days · as of
USGS recorded no earthquake of magnitude 4.5 or more within 100 km of Klagenfurt am Wörthersee in the last 30 days.
What the record holds
The deadliest was not the strongest: an earthquake on January 25, 1348 (Villach; Italy:Veneto; Slovenia:Celovac), for which NOAA records 5,000 deaths. NOAA’s list of significant earthquakes has 24 here, back to 1000. NOAA records deaths in 10 of the events here, 9,038 in all. The latest on NOAA’s list is a magnitude 5.2 on July 12, 2004 (Bovec, Kobarid). NOAA’s record here begins in January 1000 with an earthquake (Slovenia: Ljubljana). It grows thinner going back: 9 of the 24 significant earthquakes NOAA lists here are from 1927 on. NOAA lists 2 tsunamis that began within 100 km of Klagenfurt am Wörthersee.
The events
- July 12, 2004Earthquake · M 5.2Bovec, Kobarid · one death (NOAA)NOAA NCEI
- May 6, 1976Earthquake · M 6.53 km SW of Prato, Italy · 978 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
- March 26, 1511Earthquake · M 6.5 (est.)Slovenia: Idrija,Skofja Loka · 15 deaths (NOAA)NOAA NCEI
- January 25, 1348EarthquakeVillach; Italy:Veneto; Slovenia:Celovac · 5,000 deaths (NOAA)NOAA NCEI
- January 25, 1348TsunamiGulf Of VeniceNOAA NCEI
- January 1000EarthquakeSlovenia: LjubljanaNOAA NCEI
Good to know
- An event counts for Klagenfurt am Wörthersee 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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