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Weak mag. 2.1 earthquake - 8.7 km southwest of Sisak, Croatia, on Saturday, July 24, 2021 at 14:01 GMT

Weak magnitude 2.1 earthquake at 2 km depth

24 Jul 14:05 UTC: First to report: EMSC after 4 minutes.
24 Jul 14:27: Magnitude recalculated from 1.8 to 2.3. Hypocenter depth recalculated from 12.0 to 3.0 km (from 7.5 to 1.9 mi). Epicenter location corrected by 11 km (6.8 mi) towards SE.
24 Jul 14:28: Magnitude recalculated from 2.3 to 2.1. Hypocenter depth recalculated from 3.0 to 2.0 km (from 1.9 to 1.2 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards N.

Earthquake details

Date & time	Jul 24, 2021 14:01:27 UTC
Local time at epicenter
Status	Confirmed
Magnitude	2.1
Depth	2.0 km
Epicenter latitude / longitude	45.43°N / 16.28°E (Town of Petrinja, Sisak-Moslavina, Croatia)
Antipode	45.43°S / 163.72°W
Shaking intensity	Weak shaking
Felt	2 reports
Primary data source	EMSC (European-Mediterranean Seismological Centre)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	1 km (1 mi) SW of Petrinja (pop: 15,700) \| Show on map \| Quakes nearby 9 km (5 mi) WSW of Sisak (pop: 35,700) \| Show on map \| Quakes nearby 9 km (6 mi) NNE of Luščani (Sisačko-Moslavačka) (pop: 163) \| Show on map \| Quakes nearby 11 km (7 mi) ESE of Stari Brod (Sisačko-Moslavačka) (pop: 166) \| Show on map \| Quakes nearby 18 km (11 mi) SSE of Lekenik (Sisačko-Moslavačka) (pop: 1,900) \| Show on map \| Quakes nearby 18 km (11 mi) NE of Glina (Sisačko-Moslavačka) (pop: 4,680) \| Show on map \| Quakes nearby 19 km (12 mi) SSW of Martinska Ves (Sisačko-Moslavačka) (pop: 683) \| Show on map \| Quakes nearby 24 km (15 mi) WSW of Stružec (Sisačko-Moslavačka) (pop: 687) \| Show on map \| Quakes nearby 30 km (19 mi) NW of Hrvatska Kostajnica (Sisačko-Moslavačka) (pop: 2,130) \| Show on map \| Quakes nearby 49 km (30 mi) SSE of Zagreb (City of Zagreb) (pop: 699,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	8.9 x 10⁷ joules (24.8 kilowatt hours) \| 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
2.1	2 km	CROATIA	EMSC
2.3	3 km	Croatia: Sisak / Kroatien	ZAMG
2.5	10 km	Croatia	KRZO

Most recent quakes Top 20 past 24 hrs Quakes in Croatia

Seismograms

Seismic station: Arzberg, Steiermark, Austria (ARSA/OE network) | Distance from quake: 211 km / 131 mi | Show on map | Station Info

Seismic station Arzberg, Steiermark, Austria: 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: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Arzberg, Steiermark, Austria: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Arzberg, Steiermark, Austria: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Koelnbreinsperre, Kaernten, Austria (KBA/OE network) | Distance from quake: 291 km / 181 mi | Show on map | Station Info

Seismic station Koelnbreinsperre, Kaernten, Austria: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Koelnbreinsperre, Kaernten, Austria: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Koelnbreinsperre, Kaernten, Austria: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Divcibare, Serbia (DIVS/MN network) | Distance from quake: 328 km / 204 mi | Show on map | Station Info

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

Seismic station Divcibare, Serbia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Divcibare, Serbia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: L'Aquila, Italy (AQU/MN network) | Distance from quake: 412 km / 256 mi | Show on map | Station Info

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

Seismic station L'Aquila, Italy: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station L'Aquila, Italy: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Ofenpass-Fuorn, GR (FUORN/CH network) | Distance from quake: 483 km / 300 mi | Show on map | Station Info

Seismic station Ofenpass-Fuorn, GR: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Ofenpass-Fuorn, GR: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Ofenpass-Fuorn, GR: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake (2)

At magnitude 2.1, such a quake wouldn't normally be felt by people except under very favorable conditions.

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

Translate

Sisak, Sisačko-Moslavačka (8.9 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s

Petrinja / Light shaking (MMI IV) / rattling, vibrating / 1-2 s

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