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Weak mag. 2.4 earthquake - 23 km east of Rijeka, Primorsko-Goranska Županija, Croatia, on Thursday, Dec 23, 2021 at 4:20 am (GMT +1) -

Weak mag. 2.4 earthquake - 23 km east of Rijeka, Primorsko-Goranska Županija, Croatia, on Thursday, Dec 23, 2021 at 4:20 am (GMT +1) Weak mag. 2.4 earthquake - 23 km east of Rijeka, Primorsko-Goranska Županija, Croatia, on Thursday, Dec 23, 2021 at 4:20 am (GMT +1)

Weak magnitude 2.4 earthquake at 4 km depth

23 Dec 03:37 UTC: First to report: VolcanoDiscovery after 17 minutes.
23 Dec 03:59: Now using data updates from INGV

Earthquake details

Date & timeDec 23, 2021 03:20:04 UTC -
Local time at epicenterThursday, Dec 23, 2021 at 4:20 am (GMT +1)
StatusConfirmed
Magnitude2.4
Depth3.5 km
Epicenter latitude / longitude45.2877°N / 14.736°E (Fužine, Primorsko-Goranska Županija, Croatia)
Antipode45.288°S / 165.264°W
Shaking intensityWeak shaking
Felt5 reports
Primary data sourceINGV (Istituto Nazionale di Geofisica e Vulcanologia)
Nearby towns and cities2 km (1 mi) NE of Lič (Primorsko-Goranska) (pop: 504) | Show on map | Quakes nearby
13 km (8 mi) NNE of Crkvenica (Općina Crikvenica, Primorje-Gorski kotar) (pop: 7,160) | Show on map | Quakes nearby
13 km (8 mi) E of Porto Re (Primorsko-Goranska) (pop: 2,860) | Show on map | Quakes nearby
14 km (8 mi) SSW of Delnice (Primorsko-Goranska) (pop: 4,470) | Show on map | Quakes nearby
22 km (14 mi) NNW of Klenovica (Primorje-Gorski kotar) (pop: 307) | Show on map | Quakes nearby
22 km (14 mi) WSW of Stara Sušica (Primorsko-Goranska) (pop: 262) | Show on map | Quakes nearby
23 km (15 mi) NE of San Vito (Primorsko-Goranska) (pop: 261) | Show on map | Quakes nearby
23 km (15 mi) E of Rijeka (Primorje-Gorski kotar) (pop: 141,200) | Show on map | Quakes nearby
28 km (17 mi) SSW of Municipality of Kostel (Slovenia) (pop: 12) | Show on map | Quakes nearby
113 km (70 mi) WSW of Zagreb (City of Zagreb) (pop: 699,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 1.1°C (34 F), humidity: 80%, wind: 2 m/s (3 kts) from ESE
Estimated seismic energy released2.5 x 108 joules (69.8 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.DepthLocationSource
2.43.5 kmCroatia: Costa Croata Settentrionale (CROAZIA)INGV
2.43.5 kmCroatia: NW Balkan RegionRaspberryShake
2.44 kmCroatia: Crikvenica / KroatienZAMG

Seismograms

Seismic station: Koelnbreinsperre, Kaernten, Austria (KBA/OE network) | Distance from quake: 226 km / 140 mi | Show on map | Station Info
Seismic station Koelnbreinsperre, Kaernten, 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (5)

At magnitude 2.4, this quake might have been felt very close to the epicenter and under calm conditions.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Translate
Hreljin (34.6 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / single vertical bump / 1-2 s
Europe, Croatia, Kraljevica, (11.2 km WSW of epicenter) [Map] / Very weak shaking (MMI II) / very short
Jadranovo / Weak shaking (MMI III) / 2-5 s
Zlobin / Weak shaking (MMI III) / rattling, vibrating
bribir / Very weak shaking (MMI II) / single lateral shake / 2-5 s : floor vibration  

Earlier earthquakes in the same area

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