Earthquakes near Lumajang, 1927–2026

The deadliest was not the strongest: a magnitude 6 on April 10, 2021 (45 km S of Sumberpucung, Indonesia), for which NOAA records 10 deaths. 3 earthquakes here in these years are on NOAA’s list of significant earthquakes. NOAA records deaths in 20 of the events here, 842 in all. NOAA lists 3 tsunamis from elsewhere that reached the coast within 100 km of Lumajang with deaths or a metre of water or more. The highest water NOAA records here was 13.9 m, on June 2, 1994. The deadliest here came on June 2, 1994 from a magnitude 7.8 earthquake (South Of Java): NOAA’s runup records count 177 deaths within 100 km of Lumajang. NOAA lists 21 significant eruptions of 2 volcanoes within 100 km of Lumajang. The largest was Semeru on December 4, 2021, at 4 on the volcanic explosivity index. The deadliest was Semeru on May 14, 1981, which killed 372 people by NOAA’s count.

• December 4, 2021Eruption · VEI 4Semeru · 45 deaths (NOAA)NOAA NCEI · Wikipedia
• April 10, 2021Earthquake · M 6.045 km S of Sumberpucung, Indonesia · 10 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
• September 28, 1998Earthquake · M 6.68 km WSW of Sumberpucung, Indonesia · one death (NOAA)USGS · NOAA NCEI
• June 2, 1994Tsunami · 13.9 m hereSouth Of Java · 177 deaths here (NOAA)NOAA NCEI · Wikipedia
• May 14, 1981Eruption · VEI 3Semeru · 372 deaths (NOAA)NOAA NCEI · Wikipedia

• An event counts for Lumajang 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