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Mag. 1.7 quake - 29 km northwest of Larisa, Nomos Larisis, Thessaly, Greece, on Saturday, Sep 23, 2023 04:41 am (Athens time) -

Minor magnitude 1.7 earthquake at 14 km depth

23 Sep 01:48 UTC: First to report: RaspberryShake after 6 minutes.
23 Sep 01:51: Now using data updates from NOA
23 Sep 01:58: Magnitude recalculated from 1.8 to 1.7. Hypocenter depth recalculated from 10.0 to 13.7 km (from 6.2 to 8.5 mi). Epicenter location corrected by 11 km (6.9 mi) towards SSW.

Earthquake details

Date & time	Sep 23, 2023 01:41:43 UTC -
Local time at epicenter	Saturday, Sep 23, 2023 04:41 am (Europe/Athens GMT +3)
Status	Confirmed
Magnitude	1.7
Depth	13.7 km
Epicenter latitude / longitude	39.7618°N / 22.1223°E Nomos Larisis, Thessaly, Greece
Antipode	39.7618°S / 157.878°W
Shaking intensity	Not felt
Felt
Primary data source	NOA (National Observatory of Athens)
Nearest volcano	Sousaki (220 km / 137 mi)
Weather at epicenter at time of quake	Clear Sky 23°C (73 F), humidity: 54%, wind: 1 m/s (1 kts) from NNW
Estimated seismic energy released	2.2 x 10⁷ joules (6.22 kilowatt hours) \| about seismic energy

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Nearby places

Distance	Place	Max. shaking intensity(*)	Region	Country
4 km (2 mi) SW of epicenter	Vlachogianni (pop: 855)	I Not felt	Nomos Larisis, Thessaly	Greece
13 km (8 mi) W of epicenter	Verdikoussa (pop: 1,600)	I Not felt	Nomos Larisis, Thessaly	Greece
15 km (9 mi) E of epicenter	Týrnavos (pop: 10,800)	I Not felt	Nomos Larisis, Thessaly	Greece
16 km (10 mi) NNE of epicenter	Elassona (pop: 7,060)	I Not felt	Nomos Larisis, Thessaly	Greece
29 km (18 mi) ESE of epicenter	Larisa (pop: 144,700)	Not felt	Nomos Larisis, Thessaly	Greece
38 km (24 mi) SW of epicenter	Trikala (pop: 61,700)	Not felt	Trikala, Thessaly	Greece
47 km (29 mi) SSW of epicenter	Karditsa (pop: 32,800)	Not felt	Nomos Kardhitsas, Thessaly	Greece
242 km (150 mi) SE of epicenter	Athens (pop: 664,000)	Not felt	Nomarchia Athinas, Attica	Greece

Notes:
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

Compare Quake Data

Data for the same earthquake as reported by different agencies

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	Time GMT	Epicenter	Agency
1.7	14 km (8.5 mi)	2023-09-23 01:41:43	Greece: 5 Km S From Elassona	NOA (National Observatory of Athens)
1.7	14 km (8.5 mi)	2023-09-23 01:41:43	Greece 0 km (0 mi) epicenter difference with NOA	RaspberryShake (RaspberryShake)

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At magnitude 1.7, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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