Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-11-2020 and time 09:54:50 (UTC) in region 2 km E Premilcuore (FC)

A magnitude ML 1.2 earthquake occured in region: 2 km E Premilcuore (FC), on

  • 08-11-2020 09:54:50 (UTC)
  • 08-11-2020 10:54:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9820, 11.8050 at 13 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
Premilcuore FC 2 799 799
Portico e San Benedetto FC 5 756 1555
Galeata FC 9 2516 4071
Santa Sofia FC 9 4136 8207
Rocca San Casciano FC 10 1910 10117
Civitella di Romagna FC 11 3786 13903
Tredozio FC 12 1212 15115
San Godenzo FI 16 1167 16282
Dovadola FC 17 1653 17935
Marradi FI 19 3139 21074
Bagno di Romagna FC 19 6026 27100
Predappio FC 20 6346 33446
Modigliana FC 20 4560 38006

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Forlì (117913 inhabitants)
35 Km S of Faenza (58541 inhabitants)
39 Km W of Cesena (96758 inhabitants)
42 Km S of Imola (69797 inhabitants)
50 Km E of Firenze (382808 inhabitants)
56 Km E of Scandicci (50609 inhabitants)
58 Km N of Arezzo (99543 inhabitants)
58 Km E of Prato (191150 inhabitants)
58 Km SW of Ravenna (159116 inhabitants)
62 Km W of Rimini (147750 inhabitants)
68 Km SE of Bologna (386663 inhabitants)
71 Km E of Pistoia (90315 inhabitants)
83 Km NE of Siena (53903 inhabitants)
89 Km W of Pesaro (94582 inhabitants)
96 Km S of Ferrara (133155 inhabitants)
99 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 1.2 2020-11-08
09:54:50		 43.9815 11.805 13 2021-02-26
14:56:05		 Bollettino Sismico Italiano INGV 84698171
Reviewed
Rev100 		ML 1.4 2020-11-08
09:54:50		 43.9727 11.8198 18 2020-11-08
10:01:16		 Sala Sismica INGV-Roma 84552371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-08 09:54:50 ± 0.14
Latitude 43.9815 ± 0.0036
Longitude 11.8050 ± 0.0075
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84698171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 594
Semi-minor axis of confidence ellipse (meter) 224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 84698171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-22 14:58:27

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 84552371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-08 10:01:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2020-11-08T09:55:03.15 0.3 undecidable manual S 283 36.5412 94 -0.01 72
IV.VISG.HHZ. 2020-11-08T09:55:03.54 0.6 undecidable manual S 308 37.4292 94 0.14 48
IV.BRIS.HHZ. 2020-11-08T09:55:01.16 0.3 undecidable manual S 354 27.1506 96 0.5 67
IV.RONT.HHZ. 2020-11-08T09:55:01.49 0.6 undecidable manual S 273 29.748 95 0.14 49
IV.RUFI.EHZ. 2020-11-08T09:55:01.00 0.3 undecidable manual S 236 28.4493 96 -0.01 73
IV.ASQU.HHZ. 2020-11-08T09:54:59.23 0.6 undecidable manual S 183 20.5683 101 0.31 47
IV.RINC.HHZ. 2020-11-08T09:54:58.95 0.3 undecidable manual S 236 18.9699 103 0.43 69
IV.VISG.HHZ. 2020-11-08T09:54:57.90 0.1 undecidable manual P 308 37.4292 94 -0.23 92
IV.SEI.HHZ. 2020-11-08T09:54:57.80 0.1 undecidable manual P 283 36.5412 94 -0.19 93
IV.BRIS.HHZ. 2020-11-08T09:54:56.61 0.3 undecidable manual P 354 27.1506 96 0.06 74
IV.RONT.HHZ. 2020-11-08T09:54:56.82 0.1 undecidable manual P 273 29.748 95 -0.13 95
IV.RUFI.EHZ. 2020-11-08T09:54:56.68 0.1 undecidable manual P 236 28.4493 96 -0.08 96
IV.RINC.HHZ. 2020-11-08T09:54:55.14 0.1 undecidable manual P 236 18.9699 103 -0.17 96
IV.SFI.EHZ. 2020-11-08T09:54:55.83 0.6 undecidable manual S 158 9.1797 133 -0.35 48
IV.ASQU.HHZ. 2020-11-08T09:54:55.67 0.1 undecidable manual P 183 20.5683 101 0.13 97
IV.SFI.EHZ. 2020-11-08T09:54:53.84 0.1 undecidable manual P 158 9.1797 133 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.HNE. ML:1.3 0.00022084885 0.5824 AML other m 2020-11-08T09:54:55.90
IV.SFI.EHN. ML:1.3 0.000205 1.5 AML other m 2020-11-08T09:54:55.20
IV.SFI.EHE. ML:1.2 0.00019141915 0.0832 AML other m 2020-11-08T09:54:56.12
IV.SFI.HNN. ML:1.2 0.0001829147 0.2496 AML other m 2020-11-08T09:54:56.41
IV.ASQU.HHE. ML:1.2 0.00012074343 0.2176 AML other m 2020-11-08T09:54:59.60
IV.ASQU.HHN. ML:1.2 0.000093095535 0.16 AML other m 2020-11-08T09:55:00.22
IV.RUFI.EHN. ML:0.8 0.000029144000000000004 0.2176 AML other m 2020-11-08T09:55:01.40
IV.RUFI.EHE. ML:0.8 0.000031338605 0.2368 AML other m 2020-11-08T09:55:01.48
IV.BRIS.HHE. ML:1.5 0.000147971595 0.1792 AML other m 2020-11-08T09:55:01.51
IV.RINC.HHN. ML:1.0 0.00007887423 0.5824 AML other m 2020-11-08T09:55:01.69
IV.RONT.HHE. ML:1.6 0.00020549394999999998 0.1408 AML other m 2020-11-08T09:55:01.85
IV.RINC.HHE. ML:0.8 0.00005042595499999999 1.68 AML other m 2020-11-08T09:55:02.88
IV.BRIS.HHN. ML:1.5 0.00015374715 0.32 AML other m 2020-11-08T09:55:02.24
IV.RONT.HHN. ML:1.7 0.00025396095 0.16 AML other m 2020-11-08T09:55:02.50
IV.BRIS.HNN. ML:1.6 0.00020910744999999998 0.8192 AML other m 2020-11-08T09:55:03.24
IV.SEI.HHN. ML:1.6 0.000153226 0.1984 AML other m 2020-11-08T09:55:03.66
IV.VISG.HHN. ML:0.7 0.000019374370000000003 0.096 AML other m 2020-11-08T09:55:03.85
IV.VISG.HHE. ML:0.7 0.000022279555 0.1216 AML other m 2020-11-08T09:55:04.35
IV.SEI.HHE. ML:1.4 0.00008971071999999999 0.4224 AML other m 2020-11-08T09:55:05.66
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