Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 16-01-2023 and time 22:56:40 (UTC) in region 5 km W Serra Sant'Abbondio (PU)

A magnitude ML 1.4 earthquake occured in region: 5 km W Serra Sant'Abbondio (PU), on

  • 16-01-2023 22:56:40 (UTC)
  • 16-01-2023 23:56:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4730, 12.7130 at 14 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
Frontone PU 5 1300 1300
Serra Sant'Abbondio PU 5 1027 2327
Cantiano PU 7 2245 4572
Scheggia e Pascelupo PG 8 1393 5965
Cagli PU 10 8731 14696
Sassoferrato AN 13 7285 21981
Costacciaro PG 13 1216 23197
Pergola PU 14 6333 29530
Sigillo PG 16 2404 31934
Acqualagna PU 16 4393 36327
Gubbio PG 17 32216 68543
Genga AN 19 1797 70340
Arcevia AN 19 4612 74952

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km SW of Fano (60888 inhabitants)
48 Km NE of Perugia (166134 inhabitants)
51 Km SW of Pesaro (94582 inhabitants)
58 Km N of Foligno (57155 inhabitants)
67 Km S of Rimini (147750 inhabitants)
67 Km W of Ancona (100861 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
83 Km SE of Cesena (96758 inhabitants)
99 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 1.4 2023-01-16
22:56:40		 43.4733 12.713 14 2024-03-01
17:18:05		 Bollettino Sismico Italiano INGV 116954311
Reviewed
Rev100 		ML 1.5 2023-01-16
22:56:39		 43.4713 12.7173 15 2023-01-16
23:36:54		 Sala Sismica INGV-Roma 113601581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-16 22:56:40 ± 0.07
Latitude 43.4733 ± 0.0036
Longitude 12.7130 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116954311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 365
Semi-minor axis of confidence ellipse (meter) 165
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.71136
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 113601581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-16 23:36:54

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 116954311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-07-18 17:09:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2023-01-16T22:56:54.30 0.3 undecidable manual P 218 78.9654 93 0.62 56
IV.SNTG.HHZ. 2023-01-16T22:56:50.99 0.6 undecidable manual S 143 30.3474 100 0.26 45
IV.FDMO.HHZ. 2023-01-16T22:56:50.40 0.3 undecidable manual P 148 57.0984 94 0.07 67
IV.ATVO.HHZ. 2023-01-16T22:56:49.78 0.3 undecidable manual S 248 26.6511 102 0.03 72
IV.APEC.HNZ. 2023-01-16T22:56:49.78 0.3 undecidable manual S 292 25.3524 103 0.36 68
IV.ATPI.EHZ. 2023-01-16T22:56:49.41 0.3 undecidable manual S 264 25.1526 104 0.05 72
IV.ATPC.HNZ. 2023-01-16T22:56:48.39 0.3 undecidable manual S 272 20.6682 109 0.19 71
IV.MPAG.EHZ. 2023-01-16T22:56:47.77 0.3 undecidable manual S 12 17.6712 114 0.3 70
IV.FOSV.EHZ. 2023-01-16T22:56:47.78 0.6 undecidable manual S 169 20.1687 110 -0.31 46
IV.ATFO.HHZ. 2023-01-16T22:56:47.17 0.3 undecidable manual S 224 16.4724 117 0 73
IV.ARVD.HHZ. 2023-01-16T22:56:47.78 0.3 undecidable manual S 81 18.5703 113 0.09 72
IV.NARO.HHZ. 2023-01-16T22:56:47.54 0.3 undecidable manual S 325 18.5703 113 -0.15 70
IV.SNTG.HHZ. 2023-01-16T22:56:46.08 0.3 undecidable manual P 143 30.3474 100 -0.15 70
IV.ATBU.EHZ. 2023-01-16T22:56:46.86 0.3 undecidable manual S 271 13.2756 125 0.41 68
IV.PIEI.HHZ. 2023-01-16T22:56:46.79 0.3 undecidable manual S 296 15.873 118 -0.25 69
IV.ATPI.EHZ. 2023-01-16T22:56:45.23 0.3 undecidable manual P 264 25.1526 104 -0.21 69
IV.FRON.EHZ. 2023-01-16T22:56:45.16 0.3 undecidable manual S 12 4.995 156 0.12 73
IV.ATVO.HHZ. 2023-01-16T22:56:45.24 0.3 undecidable manual P 248 26.6511 102 -0.43 66
IV.ATSC.EHZ. 2023-01-16T22:56:45.04 0.3 undecidable manual S 201 5.8941 152 -0.1 74
IV.APEC.HNZ. 2023-01-16T22:56:45.52 0.3 undecidable manual P 292 25.3524 103 0.05 72
IV.SSFR.HHZ. 2023-01-16T22:56:45.27 0.3 undecidable manual S 126 6.8931 148 0 74
IV.ATPC.HNZ. 2023-01-16T22:56:44.77 0.3 undecidable manual P 272 20.6682 109 0 73
IV.NARO.HHZ. 2023-01-16T22:56:44.29 0.3 undecidable manual P 325 18.5703 113 -0.19 70
IV.FOSV.EHZ. 2023-01-16T22:56:44.42 0.3 undecidable manual P 169 20.1687 110 -0.28 69
IV.MPAG.EHZ. 2023-01-16T22:56:44.39 0.3 undecidable manual P 12 17.6712 114 0.04 73
IV.ARVD.HHZ. 2023-01-16T22:56:44.44 0.1 undecidable manual P 81 18.5703 113 -0.04 97
IV.ATFO.HHZ. 2023-01-16T22:56:43.98 0.3 undecidable manual P 224 16.4724 117 -0.2 71
IV.SSFR.HHZ. 2023-01-16T22:56:43.04 0.3 undecidable manual P 126 6.8931 148 -0.04 74
IV.ATBU.EHZ. 2023-01-16T22:56:43.85 0.3 undecidable manual P 271 13.2756 125 0.09 73
IV.PIEI.HHZ. 2023-01-16T22:56:43.93 0.3 undecidable manual P 296 15.873 118 -0.17 71
IV.ATSC.EHZ. 2023-01-16T22:56:42.95 0.3 undecidable manual P 201 5.8941 152 -0.05 75
IV.FRON.EHZ. 2023-01-16T22:56:42.95 0.1 undecidable manual P 12 4.995 156 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHN. ML:1.6 0.0004 0.12 AML other m 2023-01-16T22:56:45.30
IV.SSFR.HNN. ML:1.9 0.0008615 0.16 AML other m 2023-01-16T22:56:45.30
IV.FRON.EHN. ML:1.2 0.000176 0.16 AML other m 2023-01-16T22:56:45.29
IV.SSFR.HNE. ML:1.7 0.000626 0.06 AML other m 2023-01-16T22:56:45.38
IV.FRON.EHE. ML:1.0 0.0001135 1.3 AML other m 2023-01-16T22:56:45.22
IV.SSFR.HHE. ML:1.3 0.0002325 1.16 AML other m 2023-01-16T22:56:46.19
IV.PIEI.HHN. ML:1.4 0.0001865 0.16 AML other m 2023-01-16T22:56:46.98
IV.PIEI.HHE. ML:1.7 0.00036199999999999996 0.28 AML other m 2023-01-16T22:56:47.19
IV.ATFO.HHN. ML:1.3 0.00014900000000000002 0.82 AML other m 2023-01-16T22:56:47.24
IV.ATFO.HHE. ML:1.2 0.0001283 0.96 AML other m 2023-01-16T22:56:47.86
IV.NARO.HHN. ML:1.2 0.00010180000000000001 1.54 AML other m 2023-01-16T22:56:47.87
IV.NARO.HHE. ML:1.3 0.00013845 1.64 AML other m 2023-01-16T22:56:48.14
IV.SMA1.EHN. ML:2.0 0.0000886 0.42 AML other m 2023-01-16T22:57:26.40
IV.SMA1.EHE. ML:2.0 0.0000916 0.42 AML other m 2023-01-16T22:57:30.17
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