Earthquakes near Purwokerto, 2017–2026

2 earthquakes here in these years are on NOAA’s list of significant earthquakes. NOAA records deaths in 2 of the events here, 11 in all. 2019 had the most magnitude 4.5+ earthquakes: 6 of the 20. The latest on NOAA’s list is a magnitude 4.5 on July 7, 2024 (7 km ENE of Pekalongan, Indonesia). NOAA lists one significant eruption of one volcano within 100 km of Purwokerto. The largest was Dieng Volcanic Complex on July 1, 2017, at 1 on the volcanic explosivity index. It killed 8 people by NOAA’s count.

• September 4, 2026Earthquake · M 5.230 km SSE of Cilacap, IndonesiaUSGS
• July 7, 2024Earthquake · M 4.57 km ENE of Pekalongan, IndonesiaUSGS · NOAA NCEI
• June 9, 2019Earthquake · M 5.470 km SSW of Kroya, IndonesiaUSGS
• July 1, 2017Eruption · VEI 1Dieng Volcanic Complex · 8 deaths (NOAA)NOAA NCEI · Wikipedia

• An event counts for Purwokerto 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 are its ComCat catalogue’s earthquakes of magnitude 4.5 or more, aftershocks included.
• 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