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Moderate mag. 4.3 earthquake - 7.2 km northwest of Sisak, Croatia, on 24 Jul 3:43 pm (GMT +2) -

Moderate mag. 4.3 earthquake - 7.2 km northwest of Sisak, Croatia, on 24 Jul 3:43 pm (GMT +2) Moderate mag. 4.3 earthquake - 7.2 km northwest of Sisak, Croatia, on 24 Jul 3:43 pm (GMT +2)

Moderate magnitude 4.3 earthquake at 10 km depth

24 Jul 13:45 UTC: First to report: GFZ after 2 minutes.
24 Jul 13:50: Magnitude recalculated from 4.4 to 4.3. Epicenter location corrected by 2.6 km (1.6 mi) towards WNW.
Update Sat, 24 Jul 2021, 13:54

Moderate 4.3 quake hits near Sisak, City of Sisak, Sisak-Moslavina, Croatia

4.3 quake 24 Jul 3:43 pm (GMT +2)
4.3 quake 24 Jul 3:43 pm (GMT +2)
Just 11 minutes ago, a 4.3-magnitude earthquake struck near Sisak, City of Sisak, Sisak-Moslavina, Croatia. The tremor was recorded early afternoon on Saturday 24 July 2021 at 3:43 pm local time, at a shallow depth of 10 km below the surface.
The event was filed by the German Research Centre for Geosciences (GFZ), the first seismological agency to report it.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.3 earthquake as well.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Jazvenik (pop. 150) located 1 km from the epicenter, Petrinja (pop. 13,900) 7 km away, and Sisak (pop. 35,700) 7 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Popovača (pop. 12,000) located 26 km from the epicenter, Velika Gorica (pop. 35,100) 29 km away, Sesvete (pop. 52,400) 39 km away, Donji grad (pop. 37,000) 43 km away, Zagreb (pop. 699,000) 43 km away, and Stenjevec (pop. 41,300) 47 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Zapresic (pop. 19,700) located 55 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeJul 24, 2021 13:43:02 UTC -
Local time at epicenter24 Jul 3:43 pm (GMT +2)
StatusConfirmed
Magnitude4.3
Depth10.0 km
Epicenter latitude / longitude45.5°N / 16.3°E (Sisak, Sisak-Moslavina, Croatia)
Antipode45.5°S / 163.7°W
Shaking intensityLight shaking
Felt48 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearby towns and cities1 km (1 mi) SSW of Sela (Sisačko-Moslavačka) (pop: 963) | Show on map | Quakes nearby
7 km (4 mi) N of Petrinja (pop: 15,700) | Show on map | Quakes nearby
7 km (4 mi) WNW of Sisak (pop: 35,700) | Show on map | Quakes nearby
26 km (16 mi) WSW of Popovača (Sisačko-Moslavačka) (pop: 12,000) | Show on map | Quakes nearby
29 km (18 mi) SE of Velika Gorica (Zagreb) (pop: 31,600) | Show on map | Quakes nearby
39 km (25 mi) SSE of Sesvete (City of Zagreb) (pop: 52,400) | Show on map | Quakes nearby
43 km (27 mi) SE of Zagreb (City of Zagreb) (pop: 699,000) | Show on map | Quakes nearby
47 km (29 mi) SE of Stenjevec (City of Zagreb) (pop: 41,300) | Show on map | Quakes nearby
55 km (34 mi) SE of Zapresic (Općina Zaprešić, Zagrebačka) (pop: 19,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 31.1°C (88 F), humidity: 30%, wind: 1 m/s (2 kts) from SSE
Estimated seismic energy released1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 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.DepthLocationSource
4.310 kmCroatia: NW Balkan RegionGFZ
3.86 kmCROATIAEMSC
3.910 kmCroatiaKRZO
3.710 kmCroatia RegionNIEP
3.86 kmCroatia: Sisak / KroatienZAMG

Seismograms

Seismic station: Grafenberg, Germany (GRFO/IU network) | Distance from quake: 602 km / 374 mi | Show on map | Station Info
Seismic station Grafenberg, Germany: 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (53)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Tuheij (76.7 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 5-10 s : I was sitting on my sofa my sofa was shaking it’s was so scary | 2 users found this interesting.  
Jazvenik / Light shaking (MMI IV) / single lateral shake / 5-10 s : Jerk and jolt | 2 users found this interesting.  
Donji Vukojevac / Weak shaking (MMI III) / 1-2 s : Short but strong, house shaked | 2 users found this interesting.  
Mejdan - Obilićevo, Srpska (108.2 km SE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : 6. sprat | One user found this interesting.  
Soltanska ulica, Zagreb, Croatia 10000 (40.7 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Laying on bed in 3rd floor apartment. Felt 2-3 tremors. | One user found this interesting.  
Sisak / Moderate shaking (MMI V) : “Thunder”, then (horizontal?) ground moving for 2-3 sec. | One user found this interesting.  
Velika Gorica / Very weak shaking (MMI II) / very short : Trzaj | One user found this interesting.  
Sisak / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Vibrating | One user found this interesting.  
Velika Gorica, Zagrebačka (29.1 km NW of epicenter) [Map] / not felt (reported through our app)
Sisak, Sisačko-Moslavačka (5.7 km E of epicenter) [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 2-5 s (reported through our app)
Sisak, Sisačko-Moslavačka (1.4 km ENE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s (reported through our app)
Jankomir, City of Zagreb (45.2 km NW of epicenter) [Map] / not felt (reported through our app)
Sisak, Sisačko-Moslavačka (8.4 km ESE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s (reported through our app)
near Karlovac (49.9 km WSW of epicenter) [Map] / Weak shaking (MMI III) / 5-10 s
Kutina (38.6 km E of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Budaševo, City of Sisak, Sisačko-Moslavačka (12.5 km E of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging
Mošćenica, Town of Petrinja, Sisačko-Moslavačka (7.9 km SE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s (reported through our app)
Varoška Rijeka, Federation of B&H (52.5 km SSW of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s (reported through our app)
Bjelovar (61.3 km NE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s (reported through our app)
Lekenik, Municipality of Lekenik, Sisačko-Moslavačka (4.3 km WNW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s (reported through our app)
Petrinja, Sisačko-Moslavačka (7 km S of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
Sisak, Sisačko-Moslavačka (7.8 km SE of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
Petrinja, Sisačko-Moslavačka (7.2 km SSW of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s (reported through our app)
Lekenik, Municipality of Lekenik, Sisačko-Moslavačka (4.2 km WNW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s (reported through our app)
Sisak / Strong shaking (MMI VI) / complex motion difficult to describe / 5-10 s
Sisak (5.7 km E of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s : Osjetio se prilično jako i ovo je prvi koji sam osjetila sa nelagodom nakon onog razornog. Drmalo malo duže. (reported through our app)  
Sisak (5.4 km E of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s (reported through our app)
Lipik / Very weak shaking (MMI II) / single lateral shake / very short : little  
Sisak / Moderate shaking (MMI V) / complex motion difficult to describe / 5-10 s
Petrinja (6.7 km S of epicenter) [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 2-5 s : I was outside. I felt strong hit/bump under my feet and then shaking. I saw the store, that I was in front of, shaking and windows rattling. (reported through our app)  
Petrinja / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
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