Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 11-02-2020 and time 09:08:26 (Italy) in region 4 km E Premilcuore (FC)

A magnitude ML 1.5 earthquake occured in region: 4 km E Premilcuore (FC), on

  • 11-02-2020 08:08:26 (UTC)
  • 11-02-2020 09:08:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9940, 11.8250 at 29 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 4 799 799
Portico e San Benedetto FC 5 756 1555
Galeata FC 7 2516 4071
Rocca San Casciano FC 8 1910 5981
Santa Sofia FC 8 4136 10117
Civitella di Romagna FC 9 3786 13903
Tredozio FC 12 1212 15115
Dovadola FC 15 1653 16768
Predappio FC 17 6346 23114
San Godenzo FI 18 1167 24281
Modigliana FC 18 4560 28841
Marradi FI 19 3139 31980
Bagno di Romagna FC 19 6026 38006

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Forlì (117913 inhabitants)
33 Km S of Faenza (58541 inhabitants)
37 Km W of Cesena (96758 inhabitants)
41 Km S of Imola (69797 inhabitants)
52 Km E of Firenze (382808 inhabitants)
56 Km SW of Ravenna (159116 inhabitants)
58 Km E of Scandicci (50609 inhabitants)
59 Km N of Arezzo (99543 inhabitants)
60 Km E of Prato (191150 inhabitants)
60 Km W of Rimini (147750 inhabitants)
68 Km SE of Bologna (386663 inhabitants)
73 Km E of Pistoia (90315 inhabitants)
85 Km NE of Siena (53903 inhabitants)
88 Km W of Pesaro (94582 inhabitants)
95 Km S of Ferrara (133155 inhabitants)
97 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 1.5 2020-02-11
08:08:26		 43.994 11.8252 29 2020-07-18
21:08:21		 Bollettino Sismico Italiano INGV 76803641
Reviewed
Rev100 		ML 2.0 2020-02-11
08:08:26		 43.9843 11.8103 31 2020-02-11
08:16:35		 Sala Sismica INGV-Roma 76424191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-11 08:08:26 ± 0.2
Latitude 43.9940 ± 0.0054
Longitude 11.8252 ± 0.0100
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76803641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 557
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38581
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 76803641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-25 15:16:13

ML:2.0

Field Value
Value 2.0
Uncertainty 0.5
Num. used stations 6
Type of magnitude ML
Reference to an origin 76424191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-11 08:16:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELB.HHZ. 2020-02-11T08:09:23.72 3.0 undecidable manual Sg 1.08 0
IV.FVI.HHZ. 2020-02-11T08:09:20.01 3.0 negative manual Pg 19.209999 0
GU.ENR.HHZ. 2020-02-11T08:09:17.29 3.0 undecidable manual Pg 11.77 0
GU.TRAV.HHZ. 2020-02-11T08:09:17.82 3.0 undecidable manual Pn 4.15 0
IV.EUCT.HNZ. 2020-02-11T08:09:03.98 3.0 positive manual Pn 2.94 0
IV.ACATE.HNZ. 2020-02-11T08:09:01.04 3.0 undecidable manual Sg 1.31 0
CH.FUORN.HHZ. 2020-02-11T08:08:59.98 3.0 undecidable manual Pn -9.99 0
IV.CADC.HNZ. 2020-02-11T08:08:57.92 3.0 negative manual Pn 0.39 0
IV.NDIM.HNZ. 2020-02-11T08:08:48.92 3.0 negative manual Pn 2.09 0
IV.CRE.HHZ. 2020-02-11T08:08:42.12 0.1 undecidable manual S 166 42.8238 119 0.36 88
IV.MTRA.EHZ. 2020-02-11T08:08:42.84 3.0 undecidable manual Sg -0.64 0
IV.SEI.HHZ. 2020-02-11T08:08:40.81 0.3 undecidable manual S 280 37.8288 123 0.2 71
IV.RUFI.EHZ. 2020-02-11T08:08:39.04 0.1 undecidable manual S 236 30.5472 129 -0.01 99
IV.BRIS.HHZ. 2020-02-11T08:08:38.57 0.3 undecidable manual S 350 25.9518 134 0.44 69
IV.ASQU.HHZ. 2020-02-11T08:08:37.39 0.1 undecidable manual S 187 22.0668 139 -0.03 100
IV.RINC.HHZ. 2020-02-11T08:08:37.33 0.1 undecidable manual S 236 21.0678 141 0.08 99
IV.CRMI.HHZ. 2020-02-11T08:08:36.60 3.0 undecidable manual Pg 2.08 0
IV.SFI.EHZ. 2020-02-11T08:08:35.91 0.3 undecidable manual S 170 10.0788 159 0.15 74
IV.SEI.HHZ. 2020-02-11T08:08:35.04 0.6 undecidable manual P 280 37.8288 123 0.37 45
IV.LMD.HHZ. 2020-02-11T08:08:35.88 0.1 undecidable manual S 315 13.1757 153 -0.22 97
IV.CRE.HHZ. 2020-02-11T08:08:35.25 0.1 undecidable manual P 166 42.8238 119 -0.08 96
IV.CESX.HHZ. 2020-02-11T08:08:35.19 3.0 undecidable manual Sn -9.99 0
IV.BRIS.HHZ. 2020-02-11T08:08:33.34 0.1 undecidable manual P 350 25.9518 134 0.1 98
IV.RUFI.EHZ. 2020-02-11T08:08:33.77 0.1 undecidable manual P 236 30.5472 129 0 99
IV.RINC.HHZ. 2020-02-11T08:08:32.69 0.1 undecidable manual P 236 21.0678 141 -0.04 100
IV.ASQU.HHZ. 2020-02-11T08:08:32.58 0.1 undecidable manual P 187 22.0668 139 -0.25 96
IV.SFI.EHZ. 2020-02-11T08:08:31.53 0.1 undecidable manual P 170 10.0788 159 -0.34 96
IV.LMD.HHZ. 2020-02-11T08:08:31.75 0.1 undecidable manual P 315 13.1757 153 -0.31 95
IV.CELB.HHZ. 2020-02-11T08:08:28.38 3.0 undecidable manual Pn -2.63 0
AC.VLO.HHZ. 2020-02-11T08:08:23.18 3.0 undecidable manual Pn 2.63 0
IV.CSP1.EHZ. 2020-02-11T08:08:22.12 3.0 undecidable manual Pg 8.13 0
IV.ILLI.HHZ. 2020-02-11T08:08:19.74 3.0 undecidable manual Sn -4.96 0
IT.LRNO.HNZ. 2020-02-11T08:07:54.28 3.0 undecidable manual Pg 1.78 0
IT.VNF1.HGZ. 2020-02-11T08:07:48.06 3.0 positive manual Pn -2.34 0
IV.SIRI.HHZ. 2020-02-11T08:07:41.07 3.0 negative manual P 0.14 0
IV.PTRJ.HNZ. 2020-02-11T08:07:41.84 3.0 undecidable manual P -4.81 0
IV.VAGA.HHZ. 2020-02-11T08:07:41.34 3.0 negative manual Pn -7.38 0
IX.STN3.HHZ.02 2020-02-11T08:07:38.22 3.0 undecidable manual P 0.15 0
IV.MTMR.HNZ. 2020-02-11T08:07:35.29 3.0 negative manual P -2.39 0
IV.VBKN.HHZ. 2020-02-11T08:07:34.69 3.0 negative manual P -3.6 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHN. ML:1.7 0.00025050290000000003 1.7184 AML other m 2020-02-11T08:08:36.11
IV.LMD.HHE. ML:1.6 0.00019405375000000003 0.2432 AML other m 2020-02-11T08:08:36.00
IV.RINC.HHN. ML:1.5 0.00014024192999999998 1.4752 AML other m 2020-02-11T08:08:37.99
IV.RINC.HHE. ML:1.4 0.00009805975999999999 0.2624 AML other m 2020-02-11T08:08:38.29
IV.BRIS.HHE. ML:1.7 0.0001773062 0.2176 AML other m 2020-02-11T08:08:40.08
IV.BRIS.HHN. ML:1.9 0.00029837930000000003 0.2624 AML other m 2020-02-11T08:08:40.14
IV.SFI.HNN. ML:1.4 0.00012398774000000002 0.3712 AML other m 2020-02-11T08:08:36.50
IV.SFI.EHE. ML:1.4 0.00010775453 0.3584 AML other m 2020-02-11T08:08:36.60
IV.SFI.HNE. ML:1.4 0.00013891470000000001 0.3968 AML other m 2020-02-11T08:08:36.78
IV.SFI.EHN. ML:1.4 0.000118081355 0.2368 AML other m 2020-02-11T08:08:36.20
IV.BRIS.HNE. ML:1.6 0.00012820871999999999 0.7488 AML other m 2020-02-11T08:08:39.83
IV.BRIS.HNN. ML:1.7 0.0001942462 1.0688 AML other m 2020-02-11T08:08:39.60
IV.RUFI.EHE. ML:1.1 0.00004054879 0.5184 AML other m 2020-02-11T08:08:39.12
IV.RUFI.EHN. ML:1.5 0.00010204119000000001 0.3008 AML other m 2020-02-11T08:08:39.24
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