Earthquake with magnitude of ML 1.2 on date 23-11-2023 and time 16:29:21 (UTC) in region 6 km W Monte Cavallo (MC)

A magnitude ML 1.2 earthquake occured in region: 6 km W Monte Cavallo (MC), on

  • 23-11-2023 16:29:21 (UTC)
  • 23-11-2023 17:29:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9690, 12.9320 at 12 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.

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 6 145 145
Sellano PG 9 1079 1224
Serravalle di Chienti MC 12 1070 2294
Pieve Torina MC 13 1458 3752
Preci PG 13 724 4476
Visso MC 13 1107 5583
Fiordimonte MC 15 202 5785
Muccia MC 16 915 6700
Pievebovigliana MC 16 866 7566
Cerreto di Spoleto PG 17 1075 8641
Ussita MC 17 444 9085
Valtopina PG 18 1398 10483
Trevi PG 18 8469 18952
Foligno PG 19 57155 76107
Nocera Umbra PG 20 5839 81946
Fiastra MC 20 559 82505
Castelsantangelo sul Nera MC 20 281 82786
Sefro MC 20 422 83208

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
51 Km NE of Terni (111501 inhabitants)
72 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
98 Km S of Fano (60888 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 1.2 2023-11-23
16:29:21
42.9693 12.9325 12 2023-11-23
16:40:58
Sala Sismica INGV-Roma 123369981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-23 16:29:21 ± 0.04
Latitude 42.9693 ± 0.0027
Longitude 12.9325 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123369981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 221
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30397
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 123369981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-23 16:40:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2023-11-23T16:29:39.67 3.0 undecidable manual S 0.11 0
IV.ATCC.EHZ. 2023-11-23T16:29:33.61 0.6 undecidable manual S 315 33.744 93 0.2 47
IV.SNTG.HHZ. 2023-11-23T16:29:32.80 0.6 undecidable manual S 1 31.746 94 -0.08 48
IV.CSP1.EHZ. 2023-11-23T16:29:31.44 0.6 undecidable manual S 58 25.9518 95 0.1 49
IV.NRCA.HHZ. 2023-11-23T16:29:30.04 0.6 undecidable manual S 135 21.0678 98 -0.02 49
IV.ASSB.HHZ. 2023-11-23T16:29:30.62 0.6 undecidable manual S 290 23.6541 97 -0.12 49
IV.FDMO.HHZ. 2023-11-23T16:29:28.22 0.6 undecidable manual S 59 14.5743 111 -0.16 48
IV.SNTG.HHZ. 2023-11-23T16:29:28.19 0.6 undecidable manual P 1 31.746 94 -0.07 48
IV.ATCC.EHZ. 2023-11-23T16:29:28.57 0.6 undecidable manual P 315 33.744 93 0 49
IV.MML1.EHZ. 2023-11-23T16:29:28.81 0.6 undecidable manual S 11 16.2726 106 0 50
IV.CSP1.EHZ. 2023-11-23T16:29:27.39 0.6 positive manual P 58 25.9518 95 0.02 49
IV.ASSB.HHZ. 2023-11-23T16:29:26.92 0.1 negative manual P 290 23.6541 97 -0.1 97
IV.CESI.HHZ. 2023-11-23T16:29:26.24 0.6 undecidable manual S 330 4.5954 154 -0.15 50
IV.NRCA.HHZ. 2023-11-23T16:29:26.66 0.1 negative manual P 135 21.0678 98 0.03 99
IV.MML1.EHZ. 2023-11-23T16:29:25.95 0.1 undecidable manual P 11 16.2726 106 0.04 100
IV.FDMO.HHZ. 2023-11-23T16:29:25.71 0.1 positive manual P 59 14.5743 111 0.05 100
IV.CESI.HHZ. 2023-11-23T16:29:24.65 0.1 undecidable manual P 330 4.5954 154 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.1 0.00016299999999999998 0.22 AML other m 2023-11-23T16:29:26.39
IV.CESI.HHE. ML:1.0 0.0001359 0.06 AML other m 2023-11-23T16:29:26.37
IV.FDMO.HHE. ML:1.2 0.00014350000000000002 0.28 AML other m 2023-11-23T16:29:28.45
IV.FDMO.HHN. ML:1.3 0.00016649999999999998 0.14 AML other m 2023-11-23T16:29:28.31
IV.MML1.EHE. ML:1.2 0.00014150000000000002 1.72 AML other m 2023-11-23T16:29:29.93
IV.MML1.EHN. ML:1.1 0.00010305 0.84 AML other m 2023-11-23T16:29:29.54
IV.NRCA.HHN. ML:1.5 0.0002265 0.12 AML other m 2023-11-23T16:29:30.25
IV.NRCA.HHE. ML:1.4 0.00016849999999999998 0.1 AML other m 2023-11-23T16:29:30.23
IV.SNTG.HHN. ML:1.2 0.00007374999999999999 0.42 AML other m 2023-11-23T16:29:33.60
IV.SNTG.HHE. ML:1.0 0.00004725 0.44 AML other m 2023-11-23T16:29:33.38
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download