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Moderate mag. 4.2 earthquake - 34 km northwest of Kahramanmaraş, Turkey, on Saturday, Mar 18, 2023 at 4:40 am (GMT +3) -

This quake was likely an aftershock of the 7.8 quake 32 km west of Gaziantep, Turkey, Feb 6, 2023 3:17 am (GMT +2), which had occurred 6 weeks earlier.

Moderate mag. 4.2 earthquake - 34 km northwest of Kahramanmaraş, Turkey, on Saturday, Mar 18, 2023 at 4:40 am (GMT +3)

Moderate magnitude 4.2 earthquake at 5 km depth

18 Mar 01:42 UTC: First to report: EMSC after 2 minutes.
18 Mar 02:12: Magnitude recalculated from 4.1 to 4.2. Hypocenter depth recalculated from 10.0 to 5.0 km (from 6.2 to 3.1 mi). Epicenter location corrected by 4.8 km (3 mi) towards SE.
18 Mar 02:42: Epicenter location corrected by 1.4 km (0.9 mi) towards SW.

Earthquake details

Date & time	Mar 18, 2023 01:40:06 UTC -
Local time at epicenter	Saturday, Mar 18, 2023 at 4:40 am (GMT +3)
Status	Confirmed
Magnitude	4.2
Depth	5.0 km
Epicenter latitude / longitude	37.81°N / 36.67°E (Kahramanmaraş, Turkey)
Antipode	37.81°S / 143.33°W
Shaking intensity	Moderate shaking near epicenter
Felt	0 reports
Primary data source	EMSC (European-Mediterranean Seismological Centre)
Nearest volcano	Koruhüyüğü (111 km / 69 mi)
Nearby towns and cities	28 km (17 mi) SSE of Göksun (pop: 34,200) \| Show on map \| Quakes nearby 34 km (21 mi) NW of Kahramanmaraş (pop: 376,000) \| Show on map \| Quakes nearby 53 km (33 mi) SSW of Afşin (pop: 39,600) \| Show on map \| Quakes nearby 55 km (34 mi) W of Cagliyan Cerit (Çağlayancerit) (pop: 15,500) \| Show on map \| Quakes nearby 64 km (40 mi) SW of Elbistan (pop: 80,500) \| Show on map \| Quakes nearby 70 km (44 mi) NE of Kadirli (Osmaniye) (pop: 70,200) \| Show on map \| Quakes nearby 150 km (93 mi) NE of Adana (pop: 1,249,000) \| Show on map \| Quakes nearby 405 km (252 mi) SE of Ankara (pop: 3,517,200) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 7.7°C (46 F), humidity: 96%, wind: 1 m/s (3 kts) from ENE
Estimated seismic energy released	1.3 x 10¹¹ joules (35 megawatt hours, equivalent to 30.1 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
4.2	5 km	4.2 CENTRAL TURKEY	EMSC
4.2	5 km	Turkey	RaspberryShake
4.1	5 km	Turkey: DONGEL-(KAHRAMANMARAS)	KOERI-RETMC

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Seismograms

Seismic station: GEOFON Station Eilat, Israel (EIL/GE network) | Distance from quake: 919 km / 571 mi | Show on map | Station Info

Seismic station GEOFON Station Eilat, Israel: 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: 0.2-5.0 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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