Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 04-02-2021 and time 00:08:44 (UTC) in region 7 km NE Verghereto (FC)

A magnitude ML 2.3 earthquake occured in region: 7 km NE Verghereto (FC), on

  • 04-02-2021 00:08:44 (UTC)
  • 04-02-2021 01:08:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8310, 12.0820 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Verghereto FC 7 1907 1907
Casteldelci RN 7 407 2314
Bagno di Romagna FC 9 6026 8340
Sarsina FC 11 3446 11786
Sant'Agata Feltria RN 11 2151 13937
Pennabilli RN 15 2869 16806
Badia Tedalda AR 16 1087 17893
Mercato Saraceno FC 17 6886 24779
Novafeltria RN 18 7164 31943
Pieve Santo Stefano AR 18 3183 35126
Talamello RN 18 1104 36230
Chiusi della Verna AR 19 2023 38253
Santa Sofia FC 19 4136 42389
Maiolo RN 19 848 43237

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Cesena (96758 inhabitants)
44 Km NE of Arezzo (99543 inhabitants)
44 Km S of Forlì (117913 inhabitants)
47 Km SW of Rimini (147750 inhabitants)
53 Km SE of Faenza (58541 inhabitants)
65 Km SE of Imola (69797 inhabitants)
66 Km S of Ravenna (159116 inhabitants)
67 Km E of Firenze (382808 inhabitants)
67 Km W of Pesaro (94582 inhabitants)
73 Km E of Scandicci (50609 inhabitants)
75 Km W of Fano (60888 inhabitants)
79 Km E of Prato (191150 inhabitants)
83 Km NE of Siena (53903 inhabitants)
84 Km NW of Perugia (166134 inhabitants)
94 Km E of Pistoia (90315 inhabitants)
95 Km SE of Bologna (386663 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.3 2021-02-04
00:08:44		 43.8313 12.0817 9 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87703911
Reviewed
Rev100 		ML 2.4 2021-02-04
00:08:44		 43.8382 12.0835 9 2021-02-04
00:20:34		 Sala Sismica INGV-Roma 86820961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-04 00:08:44 ± 0.08
Latitude 43.8313 ± 0.0045
Longitude 12.0817 ± 0.0050
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87703911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 487
Semi-minor axis of confidence ellipse (meter) 283
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 73
Number of defining phases 67
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.34089
Number of stations at which the event was observed 48
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 46
Type of magnitude ML
Reference to an origin 87703911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-22 10:58:26

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 76
Type of magnitude ML
Reference to an origin 86820961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-04 00:20:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SL.LJU.BHZ. 2021-02-04T00:09:37.77 3.0 undecidable manual Pg 9 0
SI.KOSI.HHZ. 2021-02-04T00:09:29.42 3.0 positive manual Pn 2.5 0
NI.VINO.HHZ. 2021-02-04T00:09:25.73 3.0 negative manual Pn 0.36 0
RF.GEPF.HHZ. 2021-02-04T00:09:25.69 3.0 undecidable manual Pn 0.46 0
IV.STAL.HHZ. 2021-02-04T00:09:24.61 3.0 undecidable manual Pn 0.57 0
IV.MNTT.EHZ. 2021-02-04T00:09:10.42 0.6 undecidable manual P 124 148.8399 50 1.42 23
IV.ARVD.HHZ. 2021-02-04T00:09:08.96 0.6 undecidable manual S 118 78.2661 50 0.75 37
IV.PII.HHZ. 2021-02-04T00:09:05.95 3.0 positive manual P 0.1 0
IV.ARCI.HHZ. 2021-02-04T00:09:05.34 0.3 undecidable manual P 204 119.1918 50 0.92 48
IV.CSP1.EHZ. 2021-02-04T00:09:05.37 0.6 undecidable manual P 132 122.0889 50 0.49 38
IV.SEI.HHZ. 2021-02-04T00:09:04.69 0.6 undecidable manual S 293 62.7927 50 0.61 40
IV.MPAG.EHZ. 2021-02-04T00:09:03.56 0.6 undecidable manual S 112 58.7967 50 0.56 42
IV.ATMI.HHZ. 2021-02-04T00:09:03.02 0.6 undecidable manual S 165 57.0984 50 0.46 43
IV.CAFI.HHZ. 2021-02-04T00:09:03.09 0.6 undecidable manual S 189 56.499 50 0.7 39
IV.MGAB.HHZ. 2021-02-04T00:09:02.05 0.3 undecidable manual P 179 101.9202 50 0.28 62
IV.RONT.HHZ. 2021-02-04T00:09:02.89 0.6 undecidable manual S 289 54.9006 50 0.93 36
IV.BRIS.HHZ. 2021-02-04T00:09:01.55 0.6 undecidable manual S 330 50.3163 50 0.8 38
IV.ASSB.HHZ. 2021-02-04T00:09:01.26 0.3 undecidable manual P 152 99.123 50 -0.07 65
IV.PIEI.HHZ. 2021-02-04T00:09:00.07 0.6 undecidable manual S 132 49.0176 50 -0.31 45
IV.RUFI.EHZ. 2021-02-04T00:08:59.58 0.6 undecidable manual S 271 45.8208 50 0.05 48
IV.NARO.HHZ. 2021-02-04T00:08:59.68 0.6 undecidable manual S 121 46.9197 50 -0.15 47
IV.CDCA.HNZ. 2021-02-04T00:08:59.53 0.6 undecidable manual S 164 43.1235 50 0.71 40
IV.APEC.HHZ. 2021-02-04T00:08:58.29 0.3 undecidable manual S 138 40.626 50 0.13 71
IV.ATMC.EHE. 2021-02-04T00:08:58.96 0.6 undecidable manual S 168 43.623 50 0.02 48
IV.MOCL.EHZ. 2021-02-04T00:08:57.72 0.3 undecidable manual P 285 74.4699 50 0.17 66
IV.RINC.HHZ. 2021-02-04T00:08:57.48 0.6 undecidable manual S 279 38.4282 50 -0.1 48
IV.IMOL.EHZ. 2021-02-04T00:08:57.00 0.1 undecidable manual P 335 64.491 50 1 68
IV.LMD.HHZ. 2021-02-04T00:08:57.78 0.6 undecidable manual S 313 40.5261 50 -0.34 46
IV.CSNT.HHZ. 2021-02-04T00:08:57.88 0.3 undecidable manual P 238 74.9694 50 0.27 65
IV.PE3.EHZ. 2021-02-04T00:08:57.38 0.6 undecidable manual S 114 36.4413 50 0.34 46
IV.ARVD.HHZ. 2021-02-04T00:08:57.65 0.3 undecidable manual P 118 78.2661 50 -0.48 62
IV.BADI.EHZ. 2021-02-04T00:08:57.49 0.3 undecidable manual S 160 38.0286 50 0.04 73
IV.SAIV.HNN. 2021-02-04T00:08:56.06 0.3 undecidable manual S 125 32.3454 50 0.12 73
IV.CRTC.HHZ. 2021-02-04T00:08:56.27 0.3 undecidable manual P 96 64.491 50 0.26 66
IT.SNS1.HNZ. 2021-02-04T00:08:55.48 0.6 undecidable manual S 172 28.8489 107 0.64 42
IV.SSP9.EHZ. 2021-02-04T00:08:55.07 0.6 undecidable manual S 172 28.8489 107 0.25 47
IV.FRON.EHZ. 2021-02-04T00:08:55.26 0.1 undecidable manual P 124 62.2932 50 -0.4 86
IV.PESA.HHZ. 2021-02-04T00:08:55.43 0.3 undecidable manual P 78 61.8936 50 -0.16 68
IT.FAZ.HNZ. 2021-02-04T00:08:55.26 0.3 undecidable manual P 344 53.9016 50 0.88 55
IV.SEI.HHZ. 2021-02-04T00:08:55.61 0.1 undecidable manual P 293 62.7927 50 -0.13 91
IV.RONT.HHZ. 2021-02-04T00:08:54.38 0.1 undecidable manual P 289 54.9006 50 -0.14 93
IV.FAEN.HNZ. 2021-02-04T00:08:54.86 0.3 undecidable manual P 342 53.4021 50 0.57 63
IV.MPAG.EHZ. 2021-02-04T00:08:54.57 0.3 undecidable manual P 112 58.7967 50 -0.55 63
IV.ATMI.HHZ. 2021-02-04T00:08:54.59 0.3 undecidable manual P 165 57.0984 50 -0.28 67
IV.CRE.HHZ. 2021-02-04T00:08:54.35 0.6 undecidable manual S 204 25.752 109 0.54 44
IV.MCIF.HNE. 2021-02-04T00:08:54.05 0.6 undecidable manual P 93 44.1225 50 1.2 32
IV.CAFI.HHZ. 2021-02-04T00:08:54.70 0.1 undecidable manual P 189 56.499 50 -0.06 94
IV.PARC.HHZ. 2021-02-04T00:08:53.33 0.3 undecidable manual S 148 23.8539 110 0.15 73
IV.BLLA.EHZ. 2021-02-04T00:08:53.12 0.3 undecidable manual P 42 46.4202 50 -0.1 71
IV.BRSN.EHZ. 2021-02-04T00:08:53.77 0.1 undecidable manual P 360 50.2164 50 -0.03 95
IV.ASQU.HHZ. 2021-02-04T00:08:53.34 0.6 undecidable manual S 261 23.754 110 0.2 48
IV.BRIS.HHZ. 2021-02-04T00:08:53.59 0.1 positive manual P 330 50.3163 50 -0.23 92
IV.SFI.EHZ. 2021-02-04T00:08:52.08 0.3 undecidable manual S 294 20.4684 113 -0.01 76
IV.RUFI.EHZ. 2021-02-04T00:08:52.76 0.1 positive manual P 271 45.8208 50 -0.36 90
IV.ATMC.EHE. 2021-02-04T00:08:52.32 0.1 undecidable manual P 168 43.623 50 -0.46 88
IV.CPGN.EHZ. 2021-02-04T00:08:52.64 0.6 undecidable manual S 100 19.3695 114 0.89 39
IV.NARO.HHZ. 2021-02-04T00:08:52.65 0.1 undecidable manual P 121 46.9197 50 -0.64 82
IV.CDCA.HNZ. 2021-02-04T00:08:52.28 0.3 undecidable manual P 164 43.1235 50 -0.43 67
IV.PIEI.HHZ. 2021-02-04T00:08:52.81 0.1 undecidable manual P 132 49.0176 50 -0.8 77
IV.APEC.HHZ. 2021-02-04T00:08:51.95 0.1 negative manual P 138 40.626 50 -0.38 90
IV.BADI.EHZ. 2021-02-04T00:08:51.49 0.1 undecidable manual P 160 38.0286 50 -0.43 90
IV.RINC.HHZ. 2021-02-04T00:08:51.59 0.1 positive manual P 279 38.4282 50 -0.4 90
IV.PE3.EHZ. 2021-02-04T00:08:51.36 0.1 undecidable manual P 114 36.4413 50 -0.32 92
IV.LMD.HHZ. 2021-02-04T00:08:51.40 0.1 undecidable manual P 313 40.5261 50 -0.9 75
IT.SNS1.HNZ. 2021-02-04T00:08:50.35 0.1 undecidable manual P 172 28.8489 107 -0.06 99
IV.SSP9.EHZ. 2021-02-04T00:08:50.20 0.1 undecidable manual P 172 28.8489 107 -0.2 96
IV.SAIV.HNN. 2021-02-04T00:08:50.79 0.3 undecidable manual P 125 32.3454 50 -0.26 71
IV.RSM2.HHE. 2021-02-04T00:08:50.95 0.3 undecidable manual P 68 31.3464 106 0.07 73
IV.ASQU.HHZ. 2021-02-04T00:08:49.33 0.1 positive manual P 261 23.754 110 -0.1 99
IV.CRE.HHZ. 2021-02-04T00:08:49.80 0.1 positive manual P 204 25.752 109 -0.01 100
IV.PARC.HHZ. 2021-02-04T00:08:49.27 0.1 positive manual P 148 23.8539 110 -0.18 97
IV.CPGN.EHZ. 2021-02-04T00:08:49.06 0.3 undecidable manual P 100 19.3695 114 0.43 69
IV.SFI.EHZ. 2021-02-04T00:08:48.51 0.1 undecidable manual P 294 20.4684 113 -0.31 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:1.9 0.0005876896000000001 0.08 AML other m 2021-02-04T00:08:52.39
IV.SFI.HNE. ML:1.9 0.0006374527999999999 0.09 AML other m 2021-02-04T00:08:52.44
IV.SFI.HNN. ML:2.3 0.0015316445000000001 0.12 AML other m 2021-02-04T00:08:52.55
IV.SFI.EHN. ML:2.3 0.0015400000000000001 0.12 AML other m 2021-02-04T00:08:52.55
IV.CPGN.EHN. ML:2.3 0.001487838 0.5 AML other m 2021-02-04T00:08:53.23
IV.CPGN.HNN. ML:2.4 0.0017515415 0.53 AML other m 2021-02-04T00:08:53.49
IV.ASQU.HHN. ML:2.6 0.002489145 0.26 AML other m 2021-02-04T00:08:53.68
IV.CPGN.EHE. ML:2.3 0.0014608765 0.56 AML other m 2021-02-04T00:08:53.59
IV.PARC.HHN. ML:2.7 0.003035 0.16 AML other m 2021-02-04T00:08:53.59
IV.ASQU.HHE. ML:2.3 0.0013456055 0.22 AML other m 2021-02-04T00:08:53.80
IV.PARC.HHE. ML:2.5 0.0018182464999999999 0.24 AML other m 2021-02-04T00:08:53.70
IV.CRE.HHN. ML:2.4 0.0016339969999999999 0.44 AML other m 2021-02-04T00:08:54.82
IV.CRE.HHE. ML:2.0 0.00062501335 0.16 AML other m 2021-02-04T00:08:54.80
IV.BADI.EHE. ML:2.6 0.001545 0.28 AML other m 2021-02-04T00:08:57.77
IV.PE3.EHN. ML:2.7 0.0021459735000000004 0.28 AML other m 2021-02-04T00:08:57.82
IV.BADI.EHN. ML:2.3 0.00082047515 0.22 AML other m 2021-02-04T00:08:58.01
IV.RINC.HHE. ML:2.6 0.0012999999999999997 0.24 AML other m 2021-02-04T00:08:58.16
IV.LMD.HHN. ML:2.2 0.0005989520499999999 0.28 AML other m 2021-02-04T00:08:58.05
IV.RINC.HHN. ML:2.2 0.00067310485 0.4 AML other m 2021-02-04T00:08:58.18
IV.APEC.HNE. ML:2.5 0.00104275635 0.86 AML other m 2021-02-04T00:08:58.62
IV.PE3.EHE. ML:2.8 0.002615 0.4 AML other m 2021-02-04T00:08:58.11
IV.APEC.HHE. ML:2.3 0.0007216903999999999 0.38 AML other m 2021-02-04T00:08:58.77
IV.LMD.HHE. ML:2.4 0.0008095 0.16 AML other m 2021-02-04T00:08:58.60
IV.APEC.HHN. ML:2.4 0.0009538874 0.62 AML other m 2021-02-04T00:08:58.79
IV.NARO.HHN. ML:2.0 0.0002976935 0.16 AML other m 2021-02-04T00:08:59.96
IV.RUFI.EHN. ML:2.3 0.0005622222 0.5 AML other m 2021-02-04T00:09:00.16
IV.NARO.HHE. ML:2.2 0.00047650000000000004 0.24 AML other m 2021-02-04T00:09:00.23
IV.RUFI.EHE. ML:2.2 0.0005365 0.22 AML other m 2021-02-04T00:09:00.25
IV.PIEI.HHN. ML:2.0 0.00028007635 0.18 AML other m 2021-02-04T00:09:01.01
IV.PIEI.HHE. ML:2.4 0.0007285000000000001 0.14 AML other m 2021-02-04T00:09:01.05
IV.BRIS.HHE. ML:2.7 0.0013900000000000002 1.62 AML other m 2021-02-04T00:09:01.98
IV.BRIS.HHN. ML:2.6 0.0010801491000000001 0.28 AML other m 2021-02-04T00:09:01.99
IV.RONT.HHN. ML:2.3 0.0005072862499999999 0.42 AML other m 2021-02-04T00:09:03.19
IV.RONT.HHE. ML:2.5 0.0007700939499999999 0.14 AML other m 2021-02-04T00:09:03.63
IV.MPAG.HNN. ML:2.0 0.00023081145 0.54 AML other m 2021-02-04T00:09:04.59
IV.ATMI.HHE. ML:2.4 0.00050749075 0.18 AML other m 2021-02-04T00:09:04.36
IV.MPAG.EHN. ML:2.0 0.00020313085 0.12 AML other m 2021-02-04T00:09:04.65
IV.SEI.HHN. ML:2.6 0.0008693603999999999 0.34 AML other m 2021-02-04T00:09:05.22
IV.FRON.EHN. ML:2.1 0.0002638104 0.1 AML other m 2021-02-04T00:09:05.99
IV.IMOL.HNE. ML:2.4 0.00053957205 0.3 AML other m 2021-02-04T00:09:08.89
IV.MOCL.EHN. ML:2.0 0.0001520233 0.3 AML other m 2021-02-04T00:09:09.11
IV.ARVD.HHE. ML:1.9 0.000105328 0.76 AML other m 2021-02-04T00:09:09.53
IV.ARVD.HHN. ML:1.9 0.00010906959999999998 0.3 AML other m 2021-02-04T00:09:09.71
IV.IMOL.HNN. ML:2.5 0.0006498102 0.22 AML other m 2021-02-04T00:09:09.51
IV.FOSV.EHE. ML:1.9 0.00010078244999999999 0.3 AML other m 2021-02-04T00:09:10.37
IV.ASSB.HHN. ML:2.0 0.00009930133499999999 0.68 AML other m 2021-02-04T00:09:20.25
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download