Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 23-12-2020 and time 02:16:06 (Italy) in region 2 km NE Fossombrone (PU)

A magnitude ML 1.5 earthquake occured in region: 2 km NE Fossombrone (PU), on

  • 23-12-2020 01:16:06 (UTC)
  • 23-12-2020 02:16:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7, 12.83 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
Fossombrone PU 2 9575 9575
Sant'Ippolito PU 4 1563 11138
Montefelcino PU 4 2671 13809
Isola del Piano PU 6 594 14403
Serrungarina PU 6 2634 17037
Saltara PU 8 6925 23962
Cartoceto PU 8 7887 31849
Barchi PU 9 967 32816
Fratte Rosa PU 10 966 33782
Montemaggiore al Metauro PU 10 2893 36675
Orciano di Pesaro PU 11 2028 38703
Mombaroccio PU 11 2152 40855
Mondavio PU 12 3810 44665
Petriano PU 12 2829 47494
Piagge PU 12 1022 48516
San Giorgio di Pesaro PU 12 1388 49904
Monteciccardo PU 13 1690 51594
Vallefoglia PU 14 15018 66612
San Lorenzo in Campo PU 14 3414 70026
Fermignano PU 15 8596 78622
Pergola PU 15 6333 84955
Castelleone di Suasa AN 16 1676 86631
Urbino PU 16 15019 101650
Acqualagna PU 16 4393 106043
Montelabbate PU 17 6938 112981
Monte Porzio PU 17 2836 115817
Corinaldo AN 18 4998 120815

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Fano (60888 inhabitants)
24 Km S of Pesaro (94582 inhabitants)
45 Km SE of Rimini (147750 inhabitants)
56 Km W of Ancona (100861 inhabitants)
68 Km SE of Cesena (96758 inhabitants)
75 Km NE of Perugia (166134 inhabitants)
81 Km E of Arezzo (99543 inhabitants)
84 Km N of Foligno (57155 inhabitants)
86 Km SE of Forlì (117913 inhabitants)
94 Km SE of Ravenna (159116 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 2020-12-23
01:16:06		 43.7 12.83 10 2021-02-26
14:56:14		 Bollettino Sismico Italiano INGV 86205311
Reviewed
Rev100 		ML 1.5 2020-12-23
01:16:06		 43.71 12.84 10 2020-12-23
01:27:21		 Sala Sismica INGV-Roma 85640391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-23 01:16:06 ± 0.08
Latitude 43.70 ± 0.00
Longitude 12.83 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86205311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 511
Semi-minor axis of confidence ellipse (meter) 486
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 52
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.06835
Epicentral distance of station farthest from the epicenter (degree) 0.69068
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 51
Type of magnitude ML
Reference to an origin 86205311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-27 17:49:23

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 85640391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-23 01:27:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2020-12-23T01:16:29.53 0.6 undecidable manual S 191 0.6709 50 0.54 40
IV.MURB.HHZ. 2020-12-23T01:16:24.73 0.6 undecidable manual S 207 0.4919 50 1.04 33
IV.BADI.EHZ. 2020-12-23T01:16:23.70 0.6 undecidable manual S 246 0.4667 50 0.77 38
IV.ATVO.HHZ. 2020-12-23T01:16:22.81 0.6 undecidable manual S 224 0.4443 50 0.55 42
IV.CING.HNZ. 2020-12-23T01:16:22.72 0.6 undecidable manual S 141 0.4191 50 1.19 31
IV.PARC.HHZ. 2020-12-23T01:16:22.53 0.6 undecidable manual S 263 0.4326 50 0.62 40
IV.EL6.EHZ. 2020-12-23T01:16:22.22 0.6 undecidable manual S 152 0.4209 50 0.64 40
IV.ATPI.EHZ. 2020-12-23T01:16:21.64 0.6 undecidable manual S 231 0.4002 50 0.69 40
IV.FOSV.EHZ. 2020-12-23T01:16:21.26 0.6 undecidable manual S 187 0.4101 50 0 47
IV.ATFO.HHZ. 2020-12-23T01:16:20.87 0.6 undecidable manual S 209 0.3849 50 0.36 44
IV.ATPC.HHE. 2020-12-23T01:16:20.16 0.6 undecidable manual S 231 0.3498 50 0.68 40
IV.ASSB.HHZ. 2020-12-23T01:16:19.11 0.3 undecidable manual P 191 0.6709 50 -0.33 63
IV.CSP1.EHZ. 2020-12-23T01:16:19.45 0.3 undecidable manual P 156 0.6673 50 0.07 66
IV.FDMO.HHZ. 2020-12-23T01:16:19.84 0.3 undecidable manual P 164 0.6907 50 0.06 66
IV.APEC.HHZ. 2020-12-23T01:16:19.24 0.6 undecidable manual S 244 0.331 50 0.33 45
IV.SENI.HNN. 2020-12-23T01:16:18.68 0.6 undecidable manual S 89 0.2896 50 0.99 36
IV.ATBU.EHZ. 2020-12-23T01:16:18.89 0.6 undecidable manual S 222 0.3058 50 0.73 40
IV.ATSC.EHE. 2020-12-23T01:16:17.58 0.6 undecidable manual S 201 0.2977 50 -0.34 45
IV.PE3.EHZ. 2020-12-23T01:16:17.03 0.6 undecidable manual S 269 0.2428 50 0.74 40
IV.SSFR.HHZ. 2020-12-23T01:16:16.72 0.6 undecidable manual S 188 0.268 50 -0.33 45
IV.PIEI.HHZ. 2020-12-23T01:16:16.99 0.6 undecidable manual S 232 0.2716 50 -0.17 47
IV.MURB.HHZ. 2020-12-23T01:16:16.46 0.3 undecidable manual P 207 0.4919 50 0.08 69
IV.PESA.HHZ. 2020-12-23T01:16:16.00 0.3 undecidable manual S 1 0.2383 50 -0.18 71
IV.ATVO.HHZ. 2020-12-23T01:16:15.28 0.1 negative manual P 224 0.4443 50 -0.28 89
IV.NARO.HHN. 2020-12-23T01:16:15.01 0.6 undecidable manual S 243 0.2032 114 0.05 49
IV.PARC.HHZ. 2020-12-23T01:16:15.14 0.1 negative manual P 263 0.4326 50 -0.22 90
IV.BADI.EHZ. 2020-12-23T01:16:15.80 0.3 undecidable manual P 246 0.4667 50 -0.15 68
IV.CING.HNZ. 2020-12-23T01:16:15.05 0.1 undecidable manual P 141 0.4191 50 -0.09 93
IV.ATFO.HHZ. 2020-12-23T01:16:14.22 0.1 negative manual P 209 0.3849 50 -0.32 89
IV.FOSV.EHZ. 2020-12-23T01:16:14.57 0.3 undecidable manual P 187 0.4101 50 -0.41 65
IV.EL6.EHZ. 2020-12-23T01:16:14.77 0.3 undecidable manual P 152 0.4209 50 -0.39 65
IV.ARVD.HHZ. 2020-12-23T01:16:14.86 0.6 undecidable manual S 159 0.2185 112 -0.65 42
IV.ATPI.EHZ. 2020-12-23T01:16:14.61 0.1 negative manual P 231 0.4002 50 -0.19 91
IV.ATBU.EHZ. 2020-12-23T01:16:13.03 0.1 undecidable manual P 222 0.3058 50 -0.16 94
IV.ATPC.HHE. 2020-12-23T01:16:13.81 0.1 undecidable manual P 231 0.3498 50 -0.14 93
IV.APEC.HHZ. 2020-12-23T01:16:13.44 0.1 negative manual P 244 0.331 50 -0.18 93
IV.COR1.EHZ. 2020-12-23T01:16:13.87 0.6 undecidable manual S 120 0.1403 123 1.04 36
IV.SSFR.HHZ. 2020-12-23T01:16:12.09 0.1 positive manual P 188 0.268 50 -0.46 88
IV.SENI.HNN. 2020-12-23T01:16:12.98 0.1 undecidable manual P 89 0.2896 50 0.06 96
IV.PE3.EHZ. 2020-12-23T01:16:12.13 0.1 negative manual P 269 0.2428 50 0.02 97
IV.ATSC.EHE. 2020-12-23T01:16:12.52 0.1 undecidable manual P 201 0.2977 50 -0.53 86
IV.PIEI.HHZ. 2020-12-23T01:16:12.15 0.1 negative manual P 232 0.2716 50 -0.46 88
IV.PESA.HHZ. 2020-12-23T01:16:11.53 0.1 positive manual P 1 0.2383 50 -0.52 88
IV.CRTC.HHZ. 2020-12-23T01:16:11.55 0.6 undecidable manual S 29 0.0755 140 0.62 43
IV.MPAG.EHZ. 2020-12-23T01:16:11.60 0.1 undecidable manual S 216 0.0899 135 0.31 94
IV.NARO.HHN. 2020-12-23T01:16:11.07 0.1 undecidable manual P 243 0.2032 114 -0.27 93
IV.FCOR.HNE. 2020-12-23T01:16:11.18 0.6 undecidable manual S 349 0.0683 143 0.44 46
IV.ARVD.HHZ. 2020-12-23T01:16:10.97 0.1 positive manual P 159 0.2185 112 -0.69 82
IV.COR1.EHZ. 2020-12-23T01:16:10.30 0.1 negative manual P 120 0.1403 123 0.19 96
IV.MPAG.EHZ. 2020-12-23T01:16:09.30 0.1 negative manual P 216 0.0899 135 0.08 99
IV.CRTC.HHZ. 2020-12-23T01:16:09.17 0.1 undecidable manual P 29 0.0755 140 0.16 98
IV.FCOR.HNE. 2020-12-23T01:16:08.96 0.1 undecidable manual P 349 0.0683 143 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAG.HNE. ML:0 0.0004845 0.3 AML other m 2020-12-23T01:16:11.77
IV.MPAG.EHE. ML:0 0.000461 0.3 AML other m 2020-12-23T01:16:11.78
IV.MPAG.HNN. ML:0 0.000418 1.4 AML other m 2020-12-23T01:16:12.77
IV.MPAG.EHN. ML:0 0.0004435 1.42 AML other m 2020-12-23T01:16:12.78
IV.CRTC.HHN. ML:0 0.00108 1.48 AML other m 2020-12-23T01:16:11.23
IV.CRTC.HHE. ML:0 0.00099149185 0.24 AML other m 2020-12-23T01:16:12.04
IV.COR1.HNE. ML:2.2 0.0014890577 0.9 AML other m 2020-12-23T01:16:12.88
IV.CRTC.HNN. ML:2.6 0.0059684065 0.6496 AML other m 2020-12-23T01:16:14.08
IV.COR1.EHE. ML:0 0.0002105657 0.24 AML other m 2020-12-23T01:16:14.86
IV.COR1.HNN. ML:2.7 0.0049955985 1.8104 AML other m 2020-12-23T01:16:15.09
IV.COR1.EHN. ML:0 0.0004521768 0.16 AML other m 2020-12-23T01:16:14.12
IV.ARVD.HHE. ML:0 4.0099875E-5 0.08 AML other m 2020-12-23T01:16:16.88
IV.ARVD.HHN. ML:0 5.14E-5 0.1 AML other m 2020-12-23T01:16:16.43
IV.PESA.HHE. ML:0 0.00085432605 0.1 AML other m 2020-12-23T01:16:16.77
IV.PESA.HHN. ML:0 0.00090230355 0.08 AML other m 2020-12-23T01:16:16.89
IV.PE3.EHE. ML:0 0.0003655664 0.22 AML other m 2020-12-23T01:16:17.43
IV.PE3.EHN. ML:0 0.00066279865 0.3 AML other m 2020-12-23T01:16:17.41
IV.SSFR.HHE. ML:0 0.00033730225 0.12 AML other m 2020-12-23T01:16:17.98
IV.SSFR.HNE. ML:0 0.00036688655 0.12 AML other m 2020-12-23T01:16:17.98
IV.SSFR.HHN. ML:0 0.00025838845 0.16 AML other m 2020-12-23T01:16:17.88
IV.SSFR.HNN. ML:0 0.000279 0.22 AML other m 2020-12-23T01:16:17.81
IV.PIEI.HHE. ML:0 0.000111 0.94 AML other m 2020-12-23T01:16:17.86
IV.PIEI.HHN. ML:0 9.92E-5 0.22 AML other m 2020-12-23T01:16:17.78
IV.APEC.HHE. ML:0 4.900866E-5 0.32 AML other m 2020-12-23T01:16:21.96
IV.FOSV.EHE. ML:0 7.215E-5 0.28 AML other m 2020-12-23T01:16:21.62
IV.ATPI.EHE. ML:0 3.51E-5 0.42 AML other m 2020-12-23T01:16:23.97
IV.ATPI.EHN. ML:0 3.435E-5 1.04 AML other m 2020-12-23T01:16:22.93
IV.APEC.HHN. ML:0 5.73E-5 0.22 AML other m 2020-12-23T01:16:22.25
IV.FOSV.EHN. ML:0 4.705E-5 0.44 AML other m 2020-12-23T01:16:22.39
IV.ATFO.HHE. ML:0 9.62E-5 0.28 AML other m 2020-12-23T01:16:22.80
IV.ATFO.HHN. ML:0 8.375E-5 0.26 AML other m 2020-12-23T01:16:22.78
IV.PARC.HHE. ML:0 9.25E-5 0.22 AML other m 2020-12-23T01:16:22.82
IV.PARC.HHN. ML:0 0.00010095 1.84 AML other m 2020-12-23T01:16:22.96
IV.ATVO.HHE. ML:0 3.87E-5 0.5 AML other m 2020-12-23T01:16:23.29
IV.EL6.EHN. ML:1.2 4.1110505E-5 0.18 AML other m 2020-12-23T01:16:23.51
IV.ATVO.HHN. ML:0 2.445E-5 0.48 AML other m 2020-12-23T01:16:23.81
IV.ATPI.HNE. ML:1.6 0.0001323659 0.7504 AML other m 2020-12-23T01:16:23.60
IV.BADI.EHN. ML:0 3.39E-5 0.8 AML other m 2020-12-23T01:16:27.93
IV.BADI.EHE. ML:0 6.88E-5 0.18 AML other m 2020-12-23T01:16:24.77
IV.MURB.HNN. ML:0 0.000284 0.34 AML other m 2020-12-23T01:16:25.14
IV.MURB.HHN. ML:0 0.000311 0.32 AML other m 2020-12-23T01:16:25.30
IV.EL6.EHE. ML:1.3 5.907634E-5 0.3 AML other m 2020-12-23T01:16:25.15
IV.MURB.HHE. ML:0 0.0003325 0.28 AML other m 2020-12-23T01:16:25.91
IV.MURB.HNE. ML:0 0.0003305 1.68 AML other m 2020-12-23T01:16:25.92
IV.CRTC.HNE. ML:2.8 0.0086021035 0.8904 AML other m 2020-12-23T01:16:27.50
IV.ASSB.HHE. ML:1.4 3.46E-5 0.28 AML other m 2020-12-23T01:16:30.50
IV.CSP1.EHE. ML:1.8 9.9273245E-5 0.24 AML other m 2020-12-23T01:16:31.56
IV.FDMO.HHE. ML:0 1.899435E-5 0.22 AML other m 2020-12-23T01:16:32.16
IV.CSP1.EHN. ML:1.8 9.798037E-5 0.26 AML other m 2020-12-23T01:16:31.83
IV.FDMO.HHN. ML:0 2.115E-5 0.52 AML other m 2020-12-23T01:16:33.28
IV.ASSB.HHN. ML:1.2 2.475E-5 0.68 AML other m 2020-12-23T01:16:35.49
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