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Thu, 31 Jul 2025, 06:22 | BY: EARTHQUAKEMONITOR

An earthquake of magnitude 3.9 occurred in the morning on Thursday, July 31st, 2025, at 8:59 am local time near Irakleion, Heraklion, Crete, Greece, as reported by the National Observatory of Athens (NOA).
According to preliminary data, the quake was located at a shallow depth of 10.60 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by Turkey’s Disaster and Emergency Management Authority (AFAD), which listed it as a magnitude 4.0 earthquake. Other agencies reporting the same quake include the European-Mediterranean Seismological Centre (EMSC) at magnitude 3.8, the citizen-seismograph network of RaspberryShake at magnitude 3.9, The Aristotle University of Thessaloniki Geophysical Lab. (AUTH) at magnitude 3.7, and The Seismological Laboratory of the University of Athens (UOA) at magnitude 3.8.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Vatos (pop. 11) located 10 km from the epicenter, Nea Anatoli (pop.

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Thu, 31 Jul 2025, 06:20 | BY: EARTHQUAKEMONITOR

Worldwide earthquakes above magnitude 3 during the past 24 hours on 31 Jul 2025

Summary: 2 quakes 6.0+, 84 quakes 5.0+, 147 quakes 4.0+, 186 quakes 3.0+, 351 quakes 2.0+ (770 total)
This report is being updated every hour.
Magnitude 6+: 2 earthquakes
Magnitude 5+: 84 earthquakes
Magnitude 4+: 147 earthquakes
Magnitude 3+: 186 earthquakes
Magnitude 2+: 351 earthquakes
No quakes of magnitude 7 or higherTotal seismic energy estimate: 9.7 x 1014 joules (270 gigawatt hours, equivalent to 2.3 x 105 tons of TNT or 14.5 atomic bombs!) | equivalent to ONE quake of magnitude 6.8 learn more10 largest earthquakes in the world (past 24 hours)#1: Mag 6.4 North Pacific Ocean, Sakhalin Oblast, 128 km southeast of Ostrov Shumshu Island, Kamchatka, RussiaThursday, Jul 31, 2025, at 01:47 am (GMT +11) – #2: Mag 6.2 North Pacific Ocean, 206 km southeast of Ostrov Shumshu Island, Kamchatka, RussiaThursday, Jul 31, 2025, at 04:27 pm (GMT +11) – #3: Mag 5.8 North Pacific Ocean, 143 km east of Ostrov Shumshu Island, Kamchatka, RussiaWednesday, Jul 30, 2025, at 06:28 pm (Kamchatka time) – #4: Mag 5.7 North Pacific Ocean, 184 km southeast of Petropavlovsk-Kamchatskiy, Kamchatka, RussiaThursday, Jul 31, 2025, at 04:31 pm (Kamchatka time) – #5: Mag 5.7 North Pacific Ocean, 229 km east of Ostrov Shumshu Island, Kamchatka, RussiaThursday, Jul 31, 2025, at 03:47 am (GMT

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