Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 01-12-2019 and time 22:25:55 (Italy) in region 3 km NW Bagno di Romagna (FC)

A magnitude ML 1.2 earthquake occured in region: 3 km NW Bagno di Romagna (FC), on

  • 01-12-2019 21:25:55 (UTC)
  • 01-12-2019 22:25:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8780, 11.9510 at 10 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 3 6026 6026
Santa Sofia FC 8 4136 10162
Verghereto FC 10 1907 12069
Galeata FC 14 2516 14585
Civitella di Romagna FC 14 3786 18371
Sarsina FC 16 3446 21817
Premilcuore FC 18 799 22616
Casteldelci RN 19 407 23023
Chiusi della Verna AR 20 2023 25046

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Cesena (96758 inhabitants)
39 Km S of Forlì (117913 inhabitants)
46 Km S of Faenza (58541 inhabitants)
46 Km N of Arezzo (99543 inhabitants)
53 Km W of Rimini (147750 inhabitants)
56 Km SE of Imola (69797 inhabitants)
57 Km E of Firenze (382808 inhabitants)
63 Km E of Scandicci (50609 inhabitants)
63 Km SW of Ravenna (159116 inhabitants)
68 Km E of Prato (191150 inhabitants)
77 Km W of Pesaro (94582 inhabitants)
80 Km NE of Siena (53903 inhabitants)
83 Km E of Pistoia (90315 inhabitants)
84 Km SE of Bologna (386663 inhabitants)
86 Km W of Fano (60888 inhabitants)
93 Km NW of Perugia (166134 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 1.2 2019-12-01
21:25:55		 43.8783 11.9507 10 2020-02-28
16:42:25		 Bollettino Sismico Italiano INGV 76600121
Reviewed
Rev100 		ML 1.2 2019-12-01
21:25:55		 43.8762 11.9363 10 2019-12-01
21:30:33		 Sala Sismica INGV-Roma 74227101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-01 21:25:55 ± 0.18
Latitude 43.8783 ± 0.0063
Longitude 11.9507 ± 0.0162
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76600121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1269
Semi-minor axis of confidence ellipse (meter) 679
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 1270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37052
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 76600121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-17 14:44:12

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 74227101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-01 21:30:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2019-12-01T21:26:16.12 3.0 undecidable manual S 0.53 0
IV.BRIS.HHZ. 2019-12-01T21:26:09.77 0.6 undecidable manual S 339 41.1255 50 0.56 42
IV.RUFI.EHZ. 2019-12-01T21:26:07.56 0.6 undecidable manual S 263 35.5422 50 -0.17 47
IV.CRE.HHZ. 2019-12-01T21:26:06.16 0.6 undecidable manual S 180 28.749 50 0.24 47
IV.ATFO.HHZ. 2019-12-01T21:26:06.49 3.0 positive manual P 0.26 0
IV.BRIS.HHZ. 2019-12-01T21:26:03.38 0.1 undecidable manual P 339 41.1255 50 -0.04 96
IV.RUFI.EHZ. 2019-12-01T21:26:02.36 0.1 undecidable manual P 263 35.5422 50 -0.21 93
IV.ASQU.HHZ. 2019-12-01T21:26:02.38 0.6 undecidable manual S 235 15.7731 122 0.41 46
IV.CRE.HHZ. 2019-12-01T21:26:01.36 0.1 undecidable manual P 180 28.749 50 -0.16 95
IV.SFI.EHZ. 2019-12-01T21:25:59.94 0.6 undecidable manual S 290 8.7801 138 -0.17 49
IV.ASQU.HHZ. 2019-12-01T21:25:59.36 0.1 positive manual P 235 15.7731 122 0.12 98
IV.SFI.EHZ. 2019-12-01T21:25:58.07 0.1 undecidable manual P 290 8.7801 138 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:1.1 0.000177 0.24 AML other m 2019-12-01T21:26:00.04
IV.SFI.EHN. ML:1.2 0.0002065 0.22 AML other m 2019-12-01T21:26:00.04
IV.ASQU.HHE. ML:1.3 0.000184 0.24 AML other m 2019-12-01T21:26:02.51
IV.ASQU.HHN. ML:1.3 0.00017649999999999998 0.98 AML other m 2019-12-01T21:26:03.60
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