Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 25-01-2023 and time 06:09:35 (UTC) in region 7 km W Serravalle di Chienti (MC)

A magnitude ML 1.2 earthquake occured in region: 7 km W Serravalle di Chienti (MC), on

  • 25-01-2023 06:09:35 (UTC)
  • 25-01-2023 07:09:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0720, 12.8700 at 8 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
Serravalle di Chienti MC 7 1070 1070
Nocera Umbra PG 8 5839 6909
Valtopina PG 9 1398 8307
Sefro MC 11 422 8729
Monte Cavallo MC 14 145 8874
Fiuminata MC 14 1402 10276
Muccia MC 14 915 11191
Pieve Torina MC 15 1458 12649
Pioraco MC 15 1134 13783
Pievebovigliana MC 18 866 14649
Camerino MC 18 6974 21623
Fiordimonte MC 18 202 21825
Spello PG 18 8645 30470
Foligno PG 19 57155 87625
Gualdo Tadino PG 19 15208 102833

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
60 Km NE of Terni (111501 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
87 Km S of Fano (60888 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
91 Km E of Arezzo (99543 inhabitants)
93 Km S of Pesaro (94582 inhabitants)
96 Km NE of Viterbo (67173 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 2023-01-25
06:09:35		 43.0717 12.8705 8 2024-03-01
17:18:00		 Bollettino Sismico Italiano INGV 115797581
Reviewed
Rev100 		ML 1.3 2023-01-25
06:09:35		 43.0723 12.8718 9 2023-01-25
06:26:32		 Sala Sismica INGV-Roma 113774841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-25 06:09:35 ± 0.04
Latitude 43.0717 ± 0.0027
Longitude 12.8705 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115797581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.44337
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 113774841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-25 06:26:32

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 115797581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-27 15:01:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TSM2.DHN.01 2023-01-25T06:09:51.43 0.3 undecidable manual S 320 47.4192 50 0.22 69
IV.SSFR.HHZ. 2023-01-25T06:09:49.43 0.3 undecidable manual S 350 41.1255 50 -0.1 72
7F.SIB2.EHE. 2023-01-25T06:09:49.22 0.6 undecidable manual S 120 40.4262 50 -0.15 47
IV.MOMA.HNZ. 2023-01-25T06:09:49.30 0.6 undecidable manual S 220 38.4282 50 0.47 44
7F.SIB3.EHN. 2023-01-25T06:09:49.17 0.3 undecidable manual S 124 39.0276 50 0.17 71
IV.MURB.HHZ. 2023-01-25T06:09:48.27 0.3 undecidable manual S 307 35.1426 50 0.32 69
7F.SIB1.EHE. 2023-01-25T06:09:48.72 0.3 undecidable manual S 121 37.9287 50 0.04 73
IV.NRCA.HHZ. 2023-01-25T06:09:47.24 0.6 undecidable manual S 143 33.0447 104 -0.01 49
IV.EL6.EHZ. 2023-01-25T06:09:47.47 0.3 undecidable manual S 33 34.1436 103 -0.17 72
IV.CSP1.EHZ. 2023-01-25T06:09:45.66 0.3 undecidable manual S 85 27.1506 107 0.35 70
IV.FOSV.EHZ. 2023-01-25T06:09:45.11 0.3 undecidable manual S 340 26.2515 107 0.1 74
IV.PF6.EHN. 2023-01-25T06:09:45.53 0.3 undecidable manual S 74 27.2505 107 0.2 72
IV.TSM2.DHN.01 2023-01-25T06:09:44.30 0.1 undecidable manual P 320 47.4192 50 -0.25 92
IV.TB01.DHZ.01 2023-01-25T06:09:44.77 0.3 undecidable manual P 315 49.2174 50 -0.06 71
7F.SIB3.EHN. 2023-01-25T06:09:43.14 0.3 undecidable manual P 124 39.0276 50 -0.13 72
IV.SSFR.HHZ. 2023-01-25T06:09:43.60 0.6 undecidable manual P 350 41.1255 50 0.01 49
7F.SIB2.EHE. 2023-01-25T06:09:43.12 0.3 undecidable manual P 120 40.4262 50 -0.37 68
IV.MOMA.HNZ. 2023-01-25T06:09:43.12 0.3 undecidable manual P 220 38.4282 50 -0.06 73
IV.ATCC.EHZ. 2023-01-25T06:09:43.75 0.3 undecidable manual S 304 22.5552 110 -0.02 75
IV.ATSC.EHE. 2023-01-25T06:09:43.99 0.3 undecidable manual P 339 41.8248 50 0.29 69
IV.EL6.EHZ. 2023-01-25T06:09:42.33 0.3 undecidable manual P 33 34.1436 103 -0.17 72
IV.FDMO.HHZ. 2023-01-25T06:09:42.29 0.3 undecidable manual S 102 17.9709 114 -0.03 76
IV.MURB.HHZ. 2023-01-25T06:09:42.46 0.6 undecidable manual P 307 35.1426 50 -0.21 47
7F.SIB1.EHE. 2023-01-25T06:09:42.84 0.3 undecidable manual P 121 37.9287 50 -0.25 70
IV.PF6.EHN. 2023-01-25T06:09:41.18 0.3 undecidable manual P 74 27.2505 107 0.03 75
IV.CSP1.EHZ. 2023-01-25T06:09:41.35 0.3 undecidable manual P 85 27.1506 107 0.21 72
IT.MTCL.HGZ. 2023-01-25T06:09:41.36 0.6 undecidable manual S 129 13.5753 121 0.42 47
IV.NRCA.HHZ. 2023-01-25T06:09:41.96 0.3 positive manual P 143 33.0447 104 -0.31 70
IV.ATCC.EHZ. 2023-01-25T06:09:40.30 0.1 undecidable manual P 304 22.5552 110 0.04 100
IV.FOSV.EHZ. 2023-01-25T06:09:40.64 0.6 undecidable manual P 340 26.2515 107 -0.33 47
IV.CESI.HHZ. 2023-01-25T06:09:39.31 0.3 undecidable manual S 159 7.881 136 -0.08 76
IV.FDMO.HHZ. 2023-01-25T06:09:39.26 0.3 undecidable manual P 102 17.9709 114 -0.16 74
IT.MTCL.HGZ. 2023-01-25T06:09:38.76 0.3 undecidable manual P 129 13.5753 121 0.14 75
IV.CESI.HHZ. 2023-01-25T06:09:37.72 0.3 undecidable manual P 159 7.881 136 -0.01 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.0 0.0001515 0.54 AML other m 2023-01-25T06:09:39.94
IV.CESI.HHE. ML:1.0 0.0001835 1.26 AML other m 2023-01-25T06:09:40.20
IV.FDMO.HHE. ML:1.0 0.00008269999999999999 0.12 AML other m 2023-01-25T06:09:42.85
IV.FDMO.HHN. ML:1.2 0.0001285 1.86 AML other m 2023-01-25T06:09:43.98
IV.NRCA.HHN. ML:1.3 0.00007925 0.94 AML other m 2023-01-25T06:09:47.80
IV.NRCA.HHE. ML:1.3 0.00009425 0.86 AML other m 2023-01-25T06:09:48.77
IV.MURB.HHN. ML:1.4 0.00010355000000000001 0.46 AML other m 2023-01-25T06:09:50.53
IV.MURB.HHE. ML:1.2 0.00007098939 2.2592 AML other m 2023-01-25T06:09:48.38
IV.SSFR.HHE. ML:1.5 0.00010235 0.24 AML other m 2023-01-25T06:09:51.59
IV.SSFR.HHN. ML:1.4 0.000073530175 1.4016 AML other m 2023-01-25T06:09:50.81
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