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Light mag. 3.3 earthquake - Ionian Sea, 80 km south of Zakynthos, Ionian Islands, Greece, on Wednesday, Dec 7, 2022 at 5:34 am (GMT +2) -

Light magnitude 3.3 earthquake at 13 km depth

7 Dec 03:39 UTC: First to report: EMSC after 4 minutes.
7 Dec 03:42: Now using data updates from NOA
7 Dec 03:46: Magnitude recalculated from 3.1 to 3.3. Hypocenter depth recalculated from 10.0 to 12.6 km (from 6.2 to 7.8 mi). Epicenter location corrected by 18 km (11 mi) towards SW.

Earthquake details

Date & time	Dec 7, 2022 03:34:52 UTC -
Local time at epicenter	Wednesday, Dec 7, 2022 at 5:34 am (GMT +2)
Status	Confirmed
Magnitude	3.3
Depth	12.6 km
Epicenter latitude / longitude	37.1091°N / 20.56°E (Ionian Sea, Greece)
Antipode	37.109°S / 159.44°W
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	NOA (National Observatory of Athens)
Nearest volcano	Sousaki (242 km / 150 mi)
Nearby towns and cities	65 km (41 mi) SSW of Keri (pop: 469) \| Show on map \| Quakes nearby 77 km (48 mi) SSW of Vasilikos (pop: 285) \| Show on map \| Quakes nearby 79 km (49 mi) SSW of Skoulikado (pop: 653) \| Show on map \| Quakes nearby 80 km (50 mi) SSW of Zakynthos (pop: 11,500) \| Show on map \| Quakes nearby 90 km (56 mi) SW of Katakolo (pop: 594) \| Show on map \| Quakes nearby 100 km (62 mi) SW of Pyrgos (Pirgos) (pop: 22,400) \| Show on map \| Quakes nearby 104 km (64 mi) SW of Amaliada (pop: 16,800) \| Show on map \| Quakes nearby 296 km (184 mi) WSW of Athens (pop: 664,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 16.9°C (62 F), humidity: 77%, wind: 6 m/s (12 kts) from S
Estimated seismic energy released	5.6 x 10⁹ joules (1.56 megawatt hours, equivalent to 1.34 tons of TNT) \| about seismic energy

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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.

Mag.	Depth	Location	Source
3.3	13 km	Greece: 26 Km W From Strofades	NOA
3.2	2 km	Greece: Ionian Sea	RaspberryShake
3.2	2 km	Greece: IONIAN SEA	EMSC

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Seismograms

Seismic station: Castrocucco, Italy (CUC/MN network) | Distance from quake: 522 km / 325 mi | Show on map | Station Info

Seismic station Castrocucco, Italy: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

There are no user reports for this quake.

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