Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 20-12-2022 and time 03:57:21 (Italy) in region 5 km NE Cagli (PU)

A magnitude ML 1.6 earthquake occured in region: 5 km NE Cagli (PU), on

  • 20-12-2022 02:57:21 (UTC)
  • 20-12-2022 03:57:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5700, 12.7020 at 45 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
Cagli PU 5 8731 8731
Acqualagna PU 6 4393 13124
Frontone PU 7 1300 14424
Serra Sant'Abbondio PU 10 1027 15451
Pergola PU 11 6333 21784
Cantiano PU 12 2245 24029
Fermignano PU 13 8596 32625
Piobbico PU 16 2029 34654
Fossombrone PU 16 9575 44229
Fratte Rosa PU 18 966 45195
Urbania PU 18 7099 52294
Urbino PU 18 15019 67313
Scheggia e Pascelupo PG 19 1393 68706
Sant'Ippolito PU 19 1563 70269
Sassoferrato AN 20 7285 77554
Isola del Piano PU 20 594 78148

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Fano (60888 inhabitants)
42 Km SW of Pesaro (94582 inhabitants)
56 Km S of Rimini (147750 inhabitants)
57 Km NE of Perugia (166134 inhabitants)
66 Km W of Ancona (100861 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
68 Km N of Foligno (57155 inhabitants)
73 Km SE of Cesena (96758 inhabitants)
90 Km SE of Forlì (117913 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 1.6 2022-12-20
02:57:21		 43.5698 12.7023 45 2024-03-01
15:28:26		 Bollettino Sismico Italiano INGV 118277131
Reviewed
Rev100 		ML 1.6 2022-12-20
02:57:20		 43.5792 12.6923 46 2022-12-20
03:03:27		 Sala Sismica INGV-Roma 112963301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-20 02:57:21 ± 0.13
Latitude 43.5698 ± 0.0090
Longitude 12.7023 ± 0.0112
Depth (km) 45 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118277131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 960
Semi-minor axis of confidence ellipse (meter) 490
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 167
Circular confidence region, given by single value of horizontal uncertainty (meter) 960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 118277131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-10 15:31:42

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 112963301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-20 03:03:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2022-12-20T02:57:36.11 0.6 undecidable manual S 171 30.8469 135 -0.03 49
IV.ATPI.EHZ. 2022-12-20T02:57:36.57 0.6 undecidable manual S 241 27.5502 140 0.91 38
IV.ATFO.HHZ. 2022-12-20T02:57:35.58 0.3 undecidable manual S 205 24.8529 143 0.28 73
IV.ATPC.HNZ. 2022-12-20T02:57:35.38 0.3 undecidable manual S 244 22.0668 147 0.43 70
IV.ARVD.HHZ. 2022-12-20T02:57:35.13 0.3 undecidable manual S 112 20.7681 148 0.33 72
IV.APEC.HNE. 2022-12-20T02:57:35.52 0.3 undecidable manual S 267 22.755 146 0.49 68
IV.TSM2.DHE.01 2022-12-20T02:57:35.71 0.6 undecidable manual S 222 25.752 142 0.3 48
IV.SSFR.HHZ. 2022-12-20T02:57:34.35 0.3 undecidable manual S 157 16.1727 155 0.02 76
IV.ATSC.EHE. 2022-12-20T02:57:34.42 0.3 undecidable manual S 185 16.1727 155 0.09 77
IV.PIEI.HHZ. 2022-12-20T02:57:34.05 0.3 undecidable manual S 254 13.9749 158 -0.09 76
IV.MPAG.EHZ. 2022-12-20T02:57:33.56 0.3 undecidable manual S 35 7.9809 167 -0.2 75
IV.FRON.EHZ. 2022-12-20T02:57:33.76 0.3 undecidable manual S 162 6.0939 170 0.08 78
IV.NARO.HHZ. 2022-12-20T02:57:33.70 0.3 undecidable manual S 295 10.7781 163 -0.21 75
IV.CESI.HHZ. 2022-12-20T02:57:33.79 0.3 undecidable manual P 165 64.7907 107 0.4 66
IV.CSP1.EHZ. 2022-12-20T02:57:33.82 0.3 undecidable manual P 142 66.7776 106 0.19 68
IV.MML1.EHZ. 2022-12-20T02:57:32.20 0.3 undecidable manual P 157 55.1004 113 -0.05 70
IV.CING.HHZ. 2022-12-20T02:57:31.21 0.3 undecidable manual P 118 45.1215 121 0.06 73
IV.MURB.HHZ. 2022-12-20T02:57:30.60 0.6 undecidable manual P 203 36.9297 129 0.29 47
IV.PARC.HHE. 2022-12-20T02:57:30.29 0.3 undecidable manual P 283 38.2284 127 -0.15 73
Y1.T1741.HNZ. 2022-12-20T02:57:30.62 0.1 undecidable manual P 53 33.6441 132 0.63 84
Y1.T1743.EHE. 2022-12-20T02:57:30.40 0.1 undecidable manual P 26 34.0437 132 0.37 91
IV.BADI.EHE. 2022-12-20T02:57:30.71 0.3 undecidable manual P 260 37.4292 128 0.35 68
IV.TB02.DHZ.01 2022-12-20T02:57:30.07 0.3 undecidable manual P 227 32.3454 134 0.19 72
IV.PESA.HHE. 2022-12-20T02:57:30.98 0.3 undecidable manual P 15 42.624 123 0.1 71
IV.ATPI.EHZ. 2022-12-20T02:57:29.52 0.3 undecidable manual P 241 27.5502 140 0.05 75
IV.TB03.DHZ. 2022-12-20T02:57:29.84 0.6 undecidable manual P 232 30.0477 136 0.17 48
IV.TSM2.DHE.01 2022-12-20T02:57:29.02 0.3 undecidable manual P 222 25.752 142 -0.3 71
IV.COR1.HNZ. 2022-12-20T02:57:29.69 0.3 undecidable manual P 74 24.8529 143 0.43 69
IV.ATFO.HHZ. 2022-12-20T02:57:29.13 0.3 undecidable manual P 205 24.8529 143 -0.13 74
IV.ATVO.HHZ. 2022-12-20T02:57:29.84 0.6 undecidable manual P 229 31.6461 135 0.03 50
IV.FOSV.EHZ. 2022-12-20T02:57:29.38 0.3 undecidable manual P 171 30.8469 135 -0.37 69
IV.CRTC.HHZ. 2022-12-20T02:57:29.50 0.3 undecidable manual P 33 26.3514 141 0.13 73
IV.APEC.HNE. 2022-12-20T02:57:28.99 0.1 undecidable manual P 267 22.755 146 -0.11 100
IV.PIEI.HHZ. 2022-12-20T02:57:28.13 0.1 negative manual P 254 13.9749 158 -0.46 94
IV.PE3.EHE. 2022-12-20T02:57:28.71 0.3 undecidable manual P 310 21.6672 147 -0.32 72
IV.MPAG.EHZ. 2022-12-20T02:57:28.00 0.1 positive manual P 35 7.9809 167 -0.37 97
IV.SSFR.HHZ. 2022-12-20T02:57:28.37 0.1 positive manual P 157 16.1727 155 -0.33 95
IV.FRON.EHZ. 2022-12-20T02:57:28.03 0.1 positive manual P 162 6.0939 170 -0.29 98
IV.ATSC.EHE. 2022-12-20T02:57:28.39 0.1 positive manual P 185 16.1727 155 -0.31 96
IV.ATPC.HNZ. 2022-12-20T02:57:28.80 0.3 undecidable manual P 244 22.0668 147 -0.26 73
IV.NARO.HHZ. 2022-12-20T02:57:28.05 0.1 positive manual P 295 10.7781 163 -0.41 96
IV.ARVD.HHZ. 2022-12-20T02:57:28.63 0.1 positive manual P 112 20.7681 148 -0.34 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHE. ML:1.6 0.0001185 0.2 AML other m 2022-12-20T02:57:33.77
IV.FRON.EHN. ML:1.9 0.000264 1.7 AML other m 2022-12-20T02:57:34.09
IV.FRON.EHE. ML:1.6 0.00010835 0.94 AML other m 2022-12-20T02:57:34.20
IV.NARO.HHN. ML:1.5 0.0000897 0.84 AML other m 2022-12-20T02:57:34.46
IV.SSFR.HHE. ML:2.0 0.00029499999999999996 0.24 AML other m 2022-12-20T02:57:34.94
IV.PIEI.HHE. ML:1.5 0.0000883 1.06 AML other m 2022-12-20T02:57:34.44
IV.SSFR.HHN. ML:2.0 0.000264 1.34 AML other m 2022-12-20T02:57:35.06
IV.PIEI.HHN. ML:1.1 0.000041710000000000006 0.64 AML other m 2022-12-20T02:57:35.18
IV.ATFO.HHN. ML:1.3 0.00005145 1.18 AML other m 2022-12-20T02:57:36.65
IV.CRTC.HHE. ML:1.6 0.00010585 0.48 AML other m 2022-12-20T02:57:36.44
IV.ATFO.HHE. ML:1.3 0.00004875 0.54 AML other m 2022-12-20T02:57:37.30
IV.CRTC.HHN. ML:1.6 0.00008855 1.5 AML other m 2022-12-20T02:57:38.03
IV.MURB.HHN. ML:1.8 0.0001435 0.46 AML other m 2022-12-20T02:57:39.23
IV.MURB.HHE. ML:1.9 0.00017199999999999998 1.74 AML other m 2022-12-20T02:57:40.04
IV.CING.HHE. ML:1.1 0.00002536 0.42 AML other m 2022-12-20T02:57:40.36
IV.CING.HHN. ML:1.1 0.000023535 0.66 AML other m 2022-12-20T02:57:40.42
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