Zamboanga

Earthquakes near Zamboanga, 1927–2026

From 1927 to October 19, 2026, USGS recorded 8 earthquakes of magnitude 6 or more within 100 km of Zamboanga, or 200 km for magnitude 7 and above. 7 of them reached magnitude 7 or more; the strongest was a magnitude 7.6 on July 23, 2010 (61 km W of Bantogon, Philippines).

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The last 30 days · as of

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

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What the record holds

The deadliest was not the strongest: a magnitude 7.4 on March 31, 1955 (Mindanao, Philippines), for which NOAA records 465 deaths. 2 earthquakes here in these years are on NOAA’s list of significant earthquakes. NOAA records deaths in 2 of the events here, 1,619 in all. NOAA lists one tsunami from elsewhere that reached the coast within 100 km of Zamboanga with deaths or a metre of water or more. The highest water NOAA records here was 5.5 m, on August 16, 1976. The deadliest here came on August 16, 1976 from a magnitude 8 earthquake (Moro Gulf): NOAA’s runup records count 1,154 deaths within 100 km of Zamboanga.

The events

  • July 23, 2010Earthquake · M 7.661 km W of Bantogon, PhilippinesUSGS · NOAA NCEI · Wikipedia
  • July 23, 2010Earthquake · M 7.572 km S of Panubigan, PhilippinesUSGS
  • August 16, 1976Tsunami · 5.5 m hereMoro Gulf · 1,154 deaths here (NOAA)NOAA NCEI · Wikipedia
  • March 31, 1955Earthquake · M 7.4Mindanao, Philippines · 465 deaths (NOAA)USGS · NOAA NCEI · Wikipedia

Good to know

  • An event counts for Zamboanga 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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