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Light mag. 4.0 earthquake - IONIAN SEA, Greece, on Wednesday, 31 October 2018 at 20:15 (GMT)

This quake was likely an aftershock of the 6.7 quake Ionian Sea, Greece, 2018-10-25 22:54 UTC, which had occurred 6 days earlier.
Light mag. 4.0 earthquake  - IONIAN SEA, Greece, on Wednesday, 31 October 2018 at 20:15 (GMT)
31 Oct 20:20 UTC: First to report: EMSC after 5 minutes.
Hypocenter depth recalculated from 6.0 to 12.0 km.
Date & time: 2018-10-31 08:15:03 UTC
Magnitude: 4.0
Depth: 12.0 km
Epicenter latitude / longitude: 37.73°N / 20.76°E (Greece)
Nearest volcano: Sousaki (217 km / 135 mi)
Nearby towns and cities:
2 km (1 mi) SW of Koilioménos (pop: 400)
3 km (2 mi) NW of Agalás (pop: 300)
5 km (3 mi) SW of Lagópodhon (pop: 500)
103 km (64 mi) SW of Pátra (pop: 168,000)
142 km (88 mi) NW of Kalamata (pop: 54,100)
261 km (162 mi) W of Athens (pop: 664,000)
Primary data source: EMSC
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
2018-10-31 20:15:03 UTCM 4.0 / 12 kmIONIAN SEA, GreeceEMSC
2018-10-31 20:14:59 UTC
2018-10-31 21:14:59 +01:00
M 4.4 / 10 km40km WSW of Mouzaki, GreeceUSGS

User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Tricase (LE) / Very weak shaking (MMI II) : My old dog starts cry and try to escape under table,bed, sofa. Other pets just run all around. The light on the table mouve slowly but all windows are closed
(Greece, 97 km NE of epicenter) : Μικρος αλλα αισθητος (reported through EMSC)
Kalamaki (Greece, 25 km NE of epicenter) : I feel tremmor. No komfort brr (reported through EMSC)
(Greece, 13 km NE of epicenter) : Δεν είχε διάρκεια (reported through EMSC)

Earlier earthquakes in the same area

Light mag. 4.0 earthquake - IONIAN SEA, Greece, on Wednesday, 31 October 2018 at 20:15 (GMT)

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