Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 01-12-2020 and time 10:46:25 (Italy) in region 3 km E Bagno di Romagna (FC)

A magnitude ML 1.7 earthquake occured in region: 3 km E Bagno di Romagna (FC), on

  • 01-12-2020 09:46:25 (UTC)
  • 01-12-2020 10:46:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.85, 12.02 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Verghereto FC 6 1907 7933
Sarsina FC 13 3446 11379
Casteldelci RN 13 407 11786
Santa Sofia FC 14 4136 15922
Sant'Agata Feltria RN 16 2151 18073
Chiusi della Verna AR 18 2023 20096
Galeata FC 19 2516 22612
Civitella di Romagna FC 19 3786 26398
Mercato Saraceno FC 19 6886 33284
Pieve Santo Stefano AR 20 3183 36467

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Cesena (96758 inhabitants)
42 Km S of Forlì (117913 inhabitants)
44 Km N of Arezzo (99543 inhabitants)
50 Km S of Faenza (58541 inhabitants)
50 Km W of Rimini (147750 inhabitants)
61 Km SE of Imola (69797 inhabitants)
62 Km E of Firenze (382808 inhabitants)
65 Km S of Ravenna (159116 inhabitants)
68 Km E of Scandicci (50609 inhabitants)
72 Km W of Pesaro (94582 inhabitants)
74 Km E of Prato (191150 inhabitants)
81 Km W of Fano (60888 inhabitants)
81 Km NE of Siena (53903 inhabitants)
88 Km NW of Perugia (166134 inhabitants)
89 Km E of Pistoia (90315 inhabitants)
90 Km SE of Bologna (386663 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.7 2020-12-01
09:46:25		 43.85 12.02 9 2020-12-01
09:54:39		 Sala Sismica INGV-Roma 85124761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-01 09:46:25 ± 0.14
Latitude 43.85 ± 0.01
Longitude 12.02 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85124761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 920
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.48653
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 85124761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-01 09:54:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2020-12-01T09:47:38.09 3.0 undecidable manual Sg 2.89 0
IV.CRND.HNZ. 2020-12-01T09:47:26.48 3.0 undecidable manual Sg -0.48 0
IV.VARE.HHZ. 2020-12-01T09:47:21.00 3.0 positive manual Pg 6.54 0
IV.VVLD.HHZ. 2020-12-01T09:47:02.26 3.0 undecidable manual Pn -2.18 0
IV.MPAG.EHZ. 2020-12-01T09:46:46.67 3.0 undecidable manual S -2.09 0
IV.ATPC.HNN. 2020-12-01T09:46:43.18 0.6 undecidable manual S 139 0.4865 50 0.81 38
IV.SEI.HHZ. 2020-12-01T09:46:43.83 3.0 undecidable manual S -0.86 0
IV.FIR.HHZ. 2020-12-01T09:46:43.19 3.0 undecidable manual S -3.08 0
IV.BRIS.HHZ. 2020-12-01T09:46:40.77 0.3 undecidable manual S 334 0.4164 50 0.47 66
IV.BADI.EHZ. 2020-12-01T09:46:39.27 0.3 undecidable manual S 154 0.3768 50 0.14 72
IV.SSP9.EHZ. 2020-12-01T09:46:36.37 0.6 undecidable manual S 163 0.2869 50 -0.09 49
IV.MPAG.EHZ. 2020-12-01T09:46:36.69 3.0 positive manual P -1.66 0
IV.ATVO.HHZ. 2020-12-01T09:46:35.92 3.0 negative manual P -1.54 0
IV.SEI.HHZ. 2020-12-01T09:46:35.24 3.0 negative manual P -0.82 0
IV.CAFI.HHZ. 2020-12-01T09:46:35.63 3.0 negative manual P -1.05 0
IV.CRE.HHZ. 2020-12-01T09:46:35.01 0.3 undecidable manual S 192 0.2347 109 0.42 70
IV.PARC.HHZ. 2020-12-01T09:46:35.41 0.3 undecidable manual S 141 0.2563 107 0.03 75
IV.ATPC.HNN. 2020-12-01T09:46:34.92 0.3 undecidable manual P 139 0.4865 50 -0.12 70
IV.ATPI.EHZ. 2020-12-01T09:46:34.84 3.0 positive manual P -1.33 0
IV.NARO.HHZ. 2020-12-01T09:46:34.19 3.0 undecidable manual P -1.76 0
IV.BRIS.HHZ. 2020-12-01T09:46:33.42 0.3 undecidable manual P 334 0.4164 50 -0.43 67
IV.ASQU.HHZ. 2020-12-01T09:46:32.55 0.3 undecidable manual S 252 0.1727 115 0.19 74
IV.BADI.EHZ. 2020-12-01T09:46:32.80 0.3 undecidable manual P 154 0.3768 50 -0.37 68
IV.RUFI.EHZ. 2020-12-01T09:46:32.47 3.0 positive manual P -0.26 0
IV.SSP9.EHZ. 2020-12-01T09:46:31.30 0.3 undecidable manual P 163 0.2869 50 -0.33 70
IV.RINC.HHZ. 2020-12-01T09:46:31.28 3.0 undecidable manual P 0.09 0
IV.PARC.HHZ. 2020-12-01T09:46:30.57 0.1 undecidable manual P 141 0.2563 107 -0.44 92
IV.CPGN.EHZ. 2020-12-01T09:46:30.73 0.1 undecidable manual P 102 0.2239 110 0.4 93
IV.CRE.HHZ. 2020-12-01T09:46:30.42 0.1 positive manual P 192 0.2347 109 -0.13 99
IV.ASQU.HHZ. 2020-12-01T09:46:29.14 0.1 positive manual P 252 0.1727 115 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:1.8 0.00049739095 0.2432 AML other m 2020-12-01T09:46:32.96
IV.ASQU.HHN. ML:1.9 0.0006740918 0.16 AML other m 2020-12-01T09:46:32.88
IV.CRE.HHE. ML:1.8 0.00032873395 0.1792 AML other m 2020-12-01T09:46:36.43
IV.CRE.HHN. ML:2 0.00055723145 0.2432 AML other m 2020-12-01T09:46:37.47
IV.PARC.HHE. ML:1.5 0.00017767345 0.3776 AML other m 2020-12-01T09:46:40.61
IV.PARC.HHN. ML:1.5 0.0001623848 0.3392 AML other m 2020-12-01T09:46:39.90
IV.CPGN.EHE. ML:1.5 0.00018719676 0.7232 AML other m 2020-12-01T09:46:45.46
IV.CPGN.EHN. ML:1.4 0.0001693864 1.0624 AML other m 2020-12-01T09:46:44.00
IV.CPGN.HNE. ML:1.6 0.00022255695 0.48 AML other m 2020-12-01T09:46:44.23
IV.CPGN.HNN. ML:1.7 0.0003295659 0.7744 AML other m 2020-12-01T09:46:40.39
IV.RINC.HHE. ML:1.5 0.0001388644 1.0368 AML other m 2020-12-01T09:46:41.56
IV.RINC.HHN. ML:1.5 0.0001453086 0.6016 AML other m 2020-12-01T09:46:42.18
IV.SSP9.EHE. ML:1.5 0.00012805735 0.1408 AML other m 2020-12-01T09:46:37.11
IV.SSP9.EHN. ML:1.5 0.00015227565 0.1216 AML other m 2020-12-01T09:46:37.13
IV.RUFI.EHE. ML:1.6 0.00011818834 0.416 AML other m 2020-12-01T09:46:38.96
IV.RUFI.EHN. ML:1.4 8.7601185E-5 0.4992 AML other m 2020-12-01T09:46:41.09
IV.BADI.EHE. ML:1.7 0.0001500801 0.16 AML other m 2020-12-01T09:46:40.23
IV.BADI.EHN. ML:1.5 0.00011487015 0.48 AML other m 2020-12-01T09:46:44.53
IV.BRIS.HNE. ML:1.8 0.0001644618 1.44 AML other m 2020-12-01T09:46:53.99
IV.BRIS.HNN. ML:2.3 0.00058044095 1.9584 AML other m 2020-12-01T09:46:35.11
IV.BRIS.HHE. ML:2 0.0002858818 0.3776 AML other m 2020-12-01T09:46:41.33
IV.BRIS.HHN. ML:2 0.00029283625 0.4224 AML other m 2020-12-01T09:46:41.77
IV.NARO.HHE. ML:1.1 2.853559E-5 1.2992 AML other m 2020-12-01T09:46:54.23
IV.NARO.HHN. ML:1.3 4.30191E-5 2.2208 AML other m 2020-12-01T09:46:54.04
IV.ATPI.HNE. ML:1.8 0.00015926515 0.9088 AML other m 2020-12-01T09:46:56.05
IV.ATPI.HNN. ML:1.8 0.0001579132 6.6368 AML other m 2020-12-01T09:46:39.56
IV.ATPI.EHE. ML:1.4 5.7940345E-5 0.6016 AML other m 2020-12-01T09:46:51.48
IV.ATPI.EHN. ML:1.3 4.4083975E-5 0.5184 AML other m 2020-12-01T09:46:49.03
IV.SEI.HHE. ML:2.1 0.0002800769 0.3456 AML other m 2020-12-01T09:46:45.84
IV.SEI.HHN. ML:2.3 0.0003959174 0.4032 AML other m 2020-12-01T09:46:46.28
IV.CAFI.HNE. ML:1.9 0.0001787579 2.2912 AML other m 2020-12-01T09:46:59.23
IV.CAFI.HNN. ML:2.4 0.00057683945 3.328 AML other m 2020-12-01T09:46:37.35
IV.CAFI.HHE. ML:1.4 5.4116805E-5 0.16 AML other m 2020-12-01T09:46:46.62
IV.CAFI.HHN. ML:1.4 5.599557E-5 0.7552 AML other m 2020-12-01T09:46:44.94
IV.ATVO.HHE. ML:1.6 7.3008455E-5 0.3776 AML other m 2020-12-01T09:46:51.12
IV.ATVO.HHN. ML:1.5 6.4616535E-5 0.8448 AML other m 2020-12-01T09:46:48.50
IV.MPAG.EHE. ML:1.3 4.0749135E-5 2.8224 AML other m 2020-12-01T09:46:48.84
IV.MPAG.EHN. ML:1.3 3.494201E-5 1.12 AML other m 2020-12-01T09:46:56.42
IV.MPAG.HNE. ML:1.9 0.00015156469 1.28 AML other m 2020-12-01T09:46:44.39
IV.MPAG.HNN. ML:1.9 0.00015033065 0.9344 AML other m 2020-12-01T09:47:02.19
IV.VVLD.HHE. ML:2.4 4.010975E-5 0.1216 AML other m 2020-12-01T09:48:01.08
IV.VVLD.HHN. ML:2.2 3.2061465E-5 1.7984 AML other m 2020-12-01T09:48:09.76
IV.VVLD.HNE. ML:3.1 0.0002059978 2.7456 AML other m 2020-12-01T09:48:10.30
IV.VVLD.HNN. ML:2.9 0.00014267385 0.704 AML other m 2020-12-01T09:47:23.62
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download