Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 01-09-2021 and time 22:09:32 (UTC) in region 11 km W Bagno di Romagna (FC)

A magnitude ML 2.0 earthquake occured in region: 11 km W Bagno di Romagna (FC), on

  • 01-09-2021 22:09:32 (UTC)
  • 02-09-2021 00:09:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8560, 11.8370 at 7 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
Bagno di Romagna FC 11 6026 6026
Santa Sofia FC 12 4136 10162
Pratovecchio Stia AR 12 5845 16007
Premilcuore FC 14 799 16806
Verghereto FC 15 1907 18713
Poppi AR 16 6160 24873
Castel San Niccolò AR 17 2707 27580
Galeata FC 17 2516 30096
Bibbiena AR 18 12241 42337
Civitella di Romagna FC 19 3786 46123
Chiusi della Verna AR 19 2023 48146
San Godenzo FI 19 1167 49313
Portico e San Benedetto FC 20 756 50069

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km N of Arezzo (99543 inhabitants)
44 Km SW of Forlì (117913 inhabitants)
45 Km SW of Cesena (96758 inhabitants)
48 Km E of Firenze (382808 inhabitants)
48 Km S of Faenza (58541 inhabitants)
54 Km E of Scandicci (50609 inhabitants)
56 Km S of Imola (69797 inhabitants)
59 Km E of Prato (191150 inhabitants)
63 Km W of Rimini (147750 inhabitants)
69 Km SW of Ravenna (159116 inhabitants)
72 Km NE of Siena (53903 inhabitants)
74 Km E of Pistoia (90315 inhabitants)
81 Km SE of Bologna (386663 inhabitants)
87 Km W of Pesaro (94582 inhabitants)
94 Km NW of Perugia (166134 inhabitants)
95 Km W of Fano (60888 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 2.0 2021-09-01
22:09:32		 43.8563 11.8372 7 2022-03-30
13:04:41		 Bollettino Sismico Italiano INGV 102055901
Reviewed
Rev100 		ML 2.0 2021-09-01
22:09:32		 43.8597 11.8373 7 2021-09-01
22:21:27		 Sala Sismica INGV-Roma 94935641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-01 22:09:32 ± 0.06
Latitude 43.8563 ± 0.0036
Longitude 11.8372 ± 0.0062
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102055901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 464
Semi-minor axis of confidence ellipse (meter) 362
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.46320
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 94935641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-01 22:21:27

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 102055901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-17 03:26:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.BNI.HHZ. 2021-09-01T22:11:41.69 3.0 undecidable manual Sg 23.34 0
IV.IMTC.HHZ. 2021-09-01T22:11:11.07 3.0 undecidable manual Sn 2.36 0
RF.GEPF.HHZ. 2021-09-01T22:10:55.79 3.0 undecidable manual Sg 9.28 0
IV.CMPR.HHZ. 2021-09-01T22:10:53.35 3.0 undecidable manual Pg 14.66 0
MN.BNI.HHZ. 2021-09-01T22:10:45.09 3.0 undecidable manual Pg 13.28 0
IV.VVLD.HHZ. 2021-09-01T22:10:41.68 3.0 undecidable manual Sn -0.16 0
IV.PAOL.HHZ. 2021-09-01T22:10:38.46 3.0 undecidable manual Pg 12.18 0
IV.IOCA.HHZ. 2021-09-01T22:10:26.66 3.0 negative manual Pn 0.47 0
SL.BOJS.BHZ. 2021-09-01T22:10:19.47 3.0 positive manual Pn 0.67 0
IV.CADC.HNZ. 2021-09-01T22:10:12.42 3.0 negative manual P 6.4 0
IV.MF5.EHZ. 2021-09-01T22:09:59.87 0.6 undecidable manual P 126 162.4152 50 0.62 31
IV.FDMO.HHZ. 2021-09-01T22:09:55.06 0.6 undecidable manual P 132 135.6642 50 -0.07 39
IV.OSSC.HHZ. 2021-09-01T22:09:51.50 0.6 undecidable manual S 232 60.0954 50 -0.18 45
IV.MGAB.HHZ. 2021-09-01T22:09:51.45 0.3 undecidable manual P 168 107.0151 50 0.74 51
IV.PII.HHZ. 2021-09-01T22:09:50.79 0.3 undecidable manual P 262 106.116 50 0.22 60
IV.ARVD.HHZ. 2021-09-01T22:09:49.12 0.3 undecidable manual P 114 97.125 50 -0.07 63
IV.BADI.EHZ. 2021-09-01T22:09:49.08 0.6 undecidable manual S 140 50.4162 50 -0.03 47
IV.BRIS.HHZ. 2021-09-01T22:09:47.03 0.3 undecidable manual S 352 41.2254 50 0.39 65
IV.FRON.EHZ. 2021-09-01T22:09:46.89 0.6 undecidable manual P 117 80.5638 50 0.26 42
IV.SSP9.EHZ. 2021-09-01T22:09:46.01 0.3 undecidable manual S 143 39.2274 50 -0.1 70
IV.ATFO.HHZ. 2021-09-01T22:09:46.44 0.3 undecidable manual P 132 80.1642 50 -0.14 64
IV.MPAG.EHZ. 2021-09-01T22:09:46.47 0.3 undecidable manual P 109 78.0663 50 0.22 64
IV.PARC.HHZ. 2021-09-01T22:09:45.81 0.6 undecidable manual S 125 39.5271 50 -0.39 44
IV.CRMI.HHZ. 2021-09-01T22:09:44.86 0.3 undecidable manual P 265 68.9754 50 0.01 67
IV.ATMI.HHZ. 2021-09-01T22:09:44.79 0.3 undecidable manual P 149 67.4769 50 0.17 65
IV.MTRZ.HNN. 2021-09-01T22:09:44.21 0.3 undecidable manual P 327 60.3951 50 0.69 57
IV.FNVD.HHZ. 2021-09-01T22:09:44.21 0.3 undecidable manual P 301 66.6777 50 -0.28 64
IV.ATVO.HHZ. 2021-09-01T22:09:44.74 0.3 undecidable manual P 139 69.6747 50 -0.22 65
IV.NARO.HHZ. 2021-09-01T22:09:43.87 0.3 undecidable manual P 114 65.49 50 -0.45 62
IV.ATPI.EHZ. 2021-09-01T22:09:43.76 0.3 undecidable manual P 135 63.8916 50 -0.31 64
IV.OSSC.HHZ. 2021-09-01T22:09:43.14 0.3 undecidable manual P 232 60.0954 50 -0.34 64
IV.IMOL.HNZ. 2021-09-01T22:09:43.59 0.3 undecidable manual P 352 56.2992 50 0.69 57
IV.CSNT.HHZ. 2021-09-01T22:09:43.27 0.3 undecidable manual P 226 61.0944 50 -0.36 64
IV.CAFI.HHZ. 2021-09-01T22:09:43.25 0.1 undecidable manual P 170 59.3961 50 -0.12 90
IV.CRE.HHZ. 2021-09-01T22:09:42.63 0.6 undecidable manual S 161 27.8499 104 0.37 45
IV.APEC.HNN. 2021-09-01T22:09:42.99 0.3 undecidable manual P 125 57.1983 50 -0.05 69
IV.PE3.EHZ. 2021-09-01T22:09:42.89 0.6 undecidable manual P 108 55.6998 50 0.09 68
IV.RSM2.HHE. 2021-09-01T22:09:42.56 0.3 undecidable manual P 79 49.4172 50 0.73 58
IV.BADI.EHZ. 2021-09-01T22:09:41.55 0.3 undecidable manual P 140 50.4162 50 -0.45 64
IV.LMD.HHZ. 2021-09-01T22:09:41.61 0.6 undecidable manual S 337 26.6511 105 -0.23 46
IV.RUFI.EHZ. 2021-09-01T22:09:41.63 0.6 undecidable manual S 266 26.2515 105 -0.09 48
IV.BRIS.HHZ. 2021-09-01T22:09:40.38 0.1 positive manual P 352 41.2254 50 -0.19 92
IV.CPGN.EHZ. 2021-09-01T22:09:40.64 0.3 undecidable manual P 99 39.1275 100 0.39 66
IV.SSP9.EHZ. 2021-09-01T22:09:40.07 0.3 undecidable manual P 143 39.2274 50 -0.19 69
IV.PARC.HHZ. 2021-09-01T22:09:39.88 0.1 positive manual P 125 39.5271 50 -0.43 87
IV.CRE.HHZ. 2021-09-01T22:09:38.04 0.1 positive manual P 161 27.8499 104 0 97
IV.RUFI.EHZ. 2021-09-01T22:09:37.60 0.1 positive manual P 266 26.2515 105 -0.13 95
IV.LMD.HHZ. 2021-09-01T22:09:37.49 0.1 positive manual P 337 26.6511 105 -0.31 91
IV.ASQU.HHZ. 2021-09-01T22:09:36.44 0.6 undecidable manual S 210 7.6812 133 0.55 45
IV.SFI.HNZ. 2021-09-01T22:09:34.91 0.3 undecidable manual S 8 5.3946 142 -0.46 68
IV.SFI.HNZ. 2021-09-01T22:09:34.03 0.1 positive manual P 8 5.3946 142 -0.03 100
IV.ASQU.HHZ. 2021-09-01T22:09:34.78 0.1 undecidable manual P 210 7.6812 133 0.42 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:2.4 0.00477 0.3 AML other m 2021-09-01T22:09:36.70
IV.ASQU.HHN. ML:2.6 0.006715 1.18 AML other m 2021-09-01T22:09:37.87
IV.LMD.HHE. ML:2.7 0.003085 0.24 AML other m 2021-09-01T22:09:41.82
IV.LMD.HHN. ML:2.6 0.002525 1.68 AML other m 2021-09-01T22:09:42.92
IV.RUFI.EHE. ML:2.1 0.0007675000000000001 0.4 AML other m 2021-09-01T22:09:42.44
IV.RUFI.EHN. ML:1.9 0.0005409999999999999 0.14 AML other m 2021-09-01T22:09:42.58
IV.CRE.HHN. ML:2.2 0.0008225 0.92 AML other m 2021-09-01T22:09:43.23
IV.CRE.HHE. ML:1.9 0.00046499999999999997 0.92 AML other m 2021-09-01T22:09:43.28
IV.PARC.HHN. ML:1.9 0.000297 0.2 AML other m 2021-09-01T22:09:46.31
IV.SSP9.EHE. ML:1.8 0.0002165 0.7 AML other m 2021-09-01T22:09:47.55
IV.BRIS.HHN. ML:2.4 0.0008605 0.28 AML other m 2021-09-01T22:09:47.58
IV.BRIS.HHE. ML:2.6 0.001405 0.26 AML other m 2021-09-01T22:09:47.65
IV.SSP9.EHN. ML:1.9 0.00027800000000000004 0.56 AML other m 2021-09-01T22:09:48.37
IV.CPGN.EHN. ML:1.9 0.000272 0.32 AML other m 2021-09-01T22:09:48.48
IV.PARC.HHE. ML:1.8 0.0002335 0.28 AML other m 2021-09-01T22:09:50.68
IV.BADI.EHE. ML:1.9 0.0002125 0.3 AML other m 2021-09-01T22:09:51.90
IV.PE3.EHE. ML:2.1 0.0002805 0.36 AML other m 2021-09-01T22:09:52.31
IV.OSSC.HHN. ML:1.9 0.00017999999999999998 0.32 AML other m 2021-09-01T22:09:52.78
IV.CAFI.HHN. ML:1.9 0.0001545 0.32 AML other m 2021-09-01T22:09:53.16
IV.CAFI.HHE. ML:1.9 0.000154 1.58 AML other m 2021-09-01T22:09:54.98
IV.BADI.EHN. ML:1.9 0.0002235 0.86 AML other m 2021-09-01T22:09:54.21
IV.ATPI.EHE. ML:2.0 0.000183 0.3 AML other m 2021-09-01T22:09:54.38
IV.PE3.EHN. ML:2.1 0.00028450000000000003 1.6 AML other m 2021-09-01T22:09:54.03
IV.CRMI.HHN. ML:2.2 0.00028 0.62 AML other m 2021-09-01T22:09:54.67
IV.ATMI.HHE. ML:2.4 0.000402 0.3 AML other m 2021-09-01T22:09:55.31
IV.CPGN.EHE. ML:1.9 0.000259 0.44 AML other m 2021-09-01T22:09:55.19
IV.CSNT.HHN. ML:1.9 0.0001625 0.64 AML other m 2021-09-01T22:09:55.56
IV.CSNT.HHE. ML:1.9 0.0001575 1.44 AML other m 2021-09-01T22:09:55.16
IV.OSSC.HHE. ML:1.9 0.000177 1.4 AML other m 2021-09-01T22:09:56.80
IV.ATVO.HHN. ML:2.0 0.00017549999999999998 0.3 AML other m 2021-09-01T22:09:56.75
IV.ATPI.EHN. ML:2.0 0.000176 0.46 AML other m 2021-09-01T22:09:57.23
IV.ATMI.HHN. ML:2.4 0.0005389999999999999 1.52 AML other m 2021-09-01T22:09:57.14
IV.CRMI.HHE. ML:1.7 0.0000797 1.22 AML other m 2021-09-01T22:09:58.12
IV.ATVO.HHE. ML:2.2 0.00028100000000000005 0.38 AML other m 2021-09-01T22:09:58.54
IV.FNVD.HHE. ML:1.9 0.000155 1.6 AML other m 2021-09-01T22:10:00.94
IV.FRON.EHN. ML:1.7 0.0000696 0.3 AML other m 2021-09-01T22:10:00.48
IV.MPAG.EHE. ML:1.4 0.00003855 0.44 AML other m 2021-09-01T22:10:01.56
IV.FNVD.HHN. ML:1.9 0.000154 0.48 AML other m 2021-09-01T22:10:01.99
IV.NARO.HHN. ML:1.4 0.0000523 0.66 AML other m 2021-09-01T22:10:04.53
IV.MPAG.EHN. ML:1.7 0.0000648 0.62 AML other m 2021-09-01T22:10:04.85
IV.NARO.HHE. ML:1.5 0.0000582 0.42 AML other m 2021-09-01T22:10:05.02
IV.ARVD.HHE. ML:1.5 0.00003125 0.34 AML other m 2021-09-01T22:10:07.22
IV.ARVD.HHN. ML:1.6 0.0000421 0.82 AML other m 2021-09-01T22:10:07.45
IV.PII.HHN. ML:2.2 0.00013550000000000001 0.48 AML other m 2021-09-01T22:10:07.91
IV.PII.HHE. ML:2.2 0.00014549999999999999 0.36 AML other m 2021-09-01T22:10:08.44
IV.FRON.EHE. ML:1.6 0.000052199999999999995 0.48 AML other m 2021-09-01T22:10:09.27
IV.MGAB.HHN. ML:2.2 0.00014150000000000002 0.68 AML other m 2021-09-01T22:10:10.37
IV.MGAB.HHE. ML:2.2 0.00014350000000000002 0.34 AML other m 2021-09-01T22:10:10.55
IV.FDMO.HHN. ML:1.8 0.000035100000000000006 1.52 AML other m 2021-09-01T22:10:22.05
IV.FDMO.HHE. ML:1.7 0.000030550000000000004 0.78 AML other m 2021-09-01T22:10:25.50
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