Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 22-11-2023 and time 21:54:31 (UTC) in region 2 km E Monte Cavallo (MC)

A magnitude ML 1.6 earthquake occured in region: 2 km E Monte Cavallo (MC), on

  • 22-11-2023 21:54:31 (UTC)
  • 22-11-2023 22:54:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0000, 13.0190 at 7 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Monte Cavallo MC 2 145 145
Pieve Torina MC 6 1458 1603
Fiordimonte MC 7 202 1805
Pievebovigliana MC 9 866 2671
Muccia MC 9 915 3586
Visso MC 10 1107 4693
Serravalle di Chienti MC 10 1070 5763
Ussita MC 12 444 6207
Fiastra MC 12 559 6766
Acquacanina MC 13 121 6887
Preci PG 14 724 7611
Sellano PG 14 1079 8690
Camerino MC 16 6974 15664
Castelsantangelo sul Nera MC 16 281 15945
Bolognola MC 17 142 16087
Sefro MC 17 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
53 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 inhabitants)
99 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
Reviewed
Rev100 		ML 1.6 2023-11-22
21:54:31		 43.0002 13.0193 7 2023-11-22
22:00:38		 Sala Sismica INGV-Roma 123345891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-22 21:54:31 ± 0.09
Latitude 43.0002 ± 0.0045
Longitude 13.0193 ± 0.0049
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123345891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.01619
Epicentral distance of station farthest from the epicenter (degree) 0.55938
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 123345891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-22 22:00:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2023-11-22T21:54:51.39 0.3 undecidable manual S 338 62.0934 50 0.29 64
IV.SSFR.HHZ. 2023-11-22T21:54:48.60 0.6 undecidable manual S 338 52.0035 50 0.2 44
IV.MF5.EHZ. 2023-11-22T21:54:44.44 0.3 undecidable manual S 92 35.742 102 0.53 64
IV.FRON.EHZ. 2023-11-22T21:54:42.33 0.1 undecidable manual P 338 62.0934 50 -0.37 84
IV.GUMA.HHZ. 2023-11-22T21:54:41.53 0.6 undecidable manual S 75 26.5512 106 0.74 40
IV.ASSB.HHZ. 2023-11-22T21:54:41.99 0.6 undecidable manual S 279 29.6481 104 0.17 47
IV.MMO1.EHZ. 2023-11-22T21:54:41.04 0.6 undecidable manual S 114 27.3504 105 -0.03 48
IV.SNTG.HHZ. 2023-11-22T21:54:41.79 0.3 undecidable manual S 347 28.9488 104 0.18 70
IV.SSFR.HHZ. 2023-11-22T21:54:40.66 0.1 undecidable manual P 338 52.0035 50 -0.49 83
IV.CSP1.EHZ. 2023-11-22T21:54:38.13 0.6 undecidable manual S 56 18.1707 112 0.1 48
IV.NRCA.HHZ. 2023-11-22T21:54:38.92 0.6 undecidable manual S 157 20.0688 110 0.28 46
IV.MF5.EHZ. 2023-11-22T21:54:38.20 1.0 positive manual P 92 35.742 102 -0.35 22
IV.ASSB.HHZ. 2023-11-22T21:54:37.29 0.1 undecidable manual P 279 29.6481 104 -0.06 95
IV.SNTG.HHZ. 2023-11-22T21:54:36.94 1.0 positive manual P 347 28.9488 104 -0.29 23
IV.GUMA.HHZ. 2023-11-22T21:54:36.34 0.1 undecidable manual P 75 26.5512 106 -0.41 89
IV.MML1.EHZ. 2023-11-22T21:54:36.48 0.6 undecidable manual S 343 13.1757 119 0.01 49
IV.MMO1.EHZ. 2023-11-22T21:54:36.54 1.0 positive manual P 114 27.3504 105 -0.37 22
IV.CSP1.EHZ. 2023-11-22T21:54:35.25 0.1 positive manual P 56 18.1707 112 0.09 96
IV.CESI.HHZ. 2023-11-22T21:54:35.82 0.6 undecidable manual S 273 9.2796 128 0.46 45
IV.NRCA.HHZ. 2023-11-22T21:54:35.53 0.1 negative manual P 157 20.0688 110 0.02 98
IV.FDMO.HHZ. 2023-11-22T21:54:34.31 0.6 undecidable manual S 54 6.7932 137 -0.41 46
IV.MML1.EHZ. 2023-11-22T21:54:34.34 0.1 negative manual P 343 13.1757 119 0.09 97
IV.FEMA.HNZ. 2023-11-22T21:54:34.11 0.6 undecidable manual S 150 4.8951 146 -0.19 48
IV.CESI.HHZ. 2023-11-22T21:54:34.03 0.1 positive manual P 273 9.2796 128 0.42 91
IV.FDMO.HHZ. 2023-11-22T21:54:33.19 0.1 undecidable manual P 54 6.7932 137 -0.06 99
IV.FEMA.HNZ. 2023-11-22T21:54:33.03 0.1 undecidable manual P 150 4.8951 146 0.02 100
IT.MTCL.HGZ. 2023-11-22T21:54:33.23 0.6 undecidable manual S 247 1.7982 167 -0.64 43
IT.MTCL.HGZ. 2023-11-22T21:54:32.61 0.1 positive manual P 247 1.7982 167 -0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.6 0.000701 0.3 AML other m 2023-11-22T21:54:34.82
IV.FDMO.HHE. ML:1.5 0.0005715 1.28 AML other m 2023-11-22T21:54:35.13
IV.CESI.HHN. ML:1.7 0.000889 0.32 AML other m 2023-11-22T21:54:36.01
IV.CESI.HNN. ML:1.7 0.0008959999999999999 0.32 AML other m 2023-11-22T21:54:36.01
IV.CESI.HNE. ML:1.6 0.0006695 0.44 AML other m 2023-11-22T21:54:36.24
IV.CESI.HHE. ML:1.7 0.0007635 0.34 AML other m 2023-11-22T21:54:36.02
IV.MML1.EHN. ML:1.3 0.0002175 1.24 AML other m 2023-11-22T21:54:37.71
IV.MML1.EHE. ML:1.3 0.0002355 1.24 AML other m 2023-11-22T21:54:37.09
IV.NRCA.HHN. ML:1.7 0.00041600000000000003 0.12 AML other m 2023-11-22T21:54:39.22
IV.NRCA.HHE. ML:1.5 0.000254 0.86 AML other m 2023-11-22T21:54:40.69
IV.MMO1.EHN. ML:1.9 0.0004685 0.22 AML other m 2023-11-22T21:54:41.28
IV.MMO1.EHE. ML:1.7 0.00027249999999999996 0.26 AML other m 2023-11-22T21:54:41.32
IV.ASSB.HHE. ML:1.5 0.000164 0.28 AML other m 2023-11-22T21:54:42.33
IV.ASSB.HHN. ML:1.7 0.0002445 0.32 AML other m 2023-11-22T21:54:42.34
IV.SNTG.HHN. ML:1.3 0.0001046 1.28 AML other m 2023-11-22T21:54:42.97
IV.SNTG.HHE. ML:1.3 0.00010315 1.34 AML other m 2023-11-22T21:54:43.13
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