Light mag. 3.7 earthquake - 87 km southwest of İzmir, Turkey, Greece, on Saturday, 31 Oct 2020 2:49 am (GMT +2) -
This quake was likely an aftershock of the 6.7 quake Aegean Sea, 17 km northeast of Karlovasi, Samos, North Aegean, Greece, 30 Oct 2020 1:51 pm (GMT +2), which had occurred 13 hours earlier.
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Light magnitude 3.7 earthquake at 8 km depth
31 Oct 00:53 UTC: First to report: EMSC after 4 minutes.
31 Oct 00:57: Magnitude recalculated from 3.4 to 3.6. Hypocenter depth recalculated from 33.0 to 20.0 km (from 21 to 12.4 mi). Epicenter location corrected by 37 km (23 mi) towards WNW.
31 Oct 00:59: Magnitude recalculated from 3.6 to 3.7. Hypocenter depth recalculated from 20.0 to 12.0 km (from 12.4 to 7.5 mi). Epicenter location corrected by 2.1 km (1.3 mi) towards ESE.
31 Oct 01:08: Hypocenter depth recalculated from 12.0 to 8.0 km (from 7.5 to 5 mi). Epicenter location corrected by 1.8 km (1.1 mi) towards W.
31 Oct 00:57: Magnitude recalculated from 3.4 to 3.6. Hypocenter depth recalculated from 33.0 to 20.0 km (from 21 to 12.4 mi). Epicenter location corrected by 37 km (23 mi) towards WNW.
31 Oct 00:59: Magnitude recalculated from 3.6 to 3.7. Hypocenter depth recalculated from 20.0 to 12.0 km (from 12.4 to 7.5 mi). Epicenter location corrected by 2.1 km (1.3 mi) towards ESE.
31 Oct 01:08: Hypocenter depth recalculated from 12.0 to 8.0 km (from 7.5 to 5 mi). Epicenter location corrected by 1.8 km (1.1 mi) towards W.
Date & time: 31 Oct 2020 00:49:06 UTC -
Local time at epicenter: Saturday, 31 Oct 2020 2:49 am (GMT +2)
Magnitude: 3.7
Depth: 8.0 km
Epicenter latitude / longitude: 37.89°N / 26.4°E
(Greece)Nearest volcano: Akyarlar (128 km / 80 mi)
Nearby towns and cities:
23 km (14 mi) NW of Ormos Agiou Isidorou (pop: 23) --> See nearby quakes!
29 km (18 mi) WNW of Karlovasi (pop: 6,710) --> See nearby quakes!
38 km (24 mi) WNW of Agios Konstantinos (pop: 368) --> See nearby quakes!
42 km (26 mi) WNW of Spatharaioi (pop: 236) --> See nearby quakes!
48 km (30 mi) WNW of Mytilinioi (pop: 1,980) --> See nearby quakes!
49 km (31 mi) S of Çeşme (Turkey) (pop: 21,300) --> See nearby quakes!
51 km (32 mi) SW of Seferihisar (Turkey) (pop: 19,600) --> See nearby quakes!
53 km (33 mi) SSE of Thymiana (pop: 1,570) --> See nearby quakes!
58 km (36 mi) SSW of Urla (Turkey) (pop: 45,200) --> See nearby quakes!
235 km (146 mi) E of Athens (pop: 664,000) --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds
16.1°C (61 F), humidity: 88%, wind: 8 m/s (15 kts)
Primary data source: EMSC (European-Mediterranean Seismological Centre)Few Clouds
16.1°C (61 F), humidity: 88%, wind: 8 m/s (15 kts)Estimated released energy: 2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 tons of TNT) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Magnitude | Depth | Location | Source |
| M 3.7 | 8 km | Dodecanese Islands, Greece | EMSC |
| M 3.6 | 5 km | Aegean Sea, Greece | KOERI-RETMC |
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