Earthquake with magnitude of ML 0.8 on date 23-11-2023 and time 22:54:15 (UTC) in region 4 km SE Sefro (MC)

A magnitude ML 0.8 earthquake occured in region: 4 km SE Sefro (MC), on

  • 23-11-2023 22:54:15 (UTC)
  • 23-11-2023 23:54:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1150, 12.9740 at 14 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
Sefro MC 4 422 422
Serravalle di Chienti MC 5 1070 1492
Muccia MC 7 915 2407
Pioraco MC 7 1134 3541
Camerino MC 8 6974 10515
Fiuminata MC 9 1402 11917
Pieve Torina MC 10 1458 13375
Pievebovigliana MC 11 866 14241
Castelraimondo MC 13 4587 18828
Fiordimonte MC 13 202 19030
Monte Cavallo MC 14 145 19175
Nocera Umbra PG 15 5839 25014
Esanatoglia MC 15 2034 27048
Gagliole MC 16 620 27668
Matelica MC 16 9981 37649
Fiastra MC 17 559 38208
Valtopina PG 19 1398 39606
Acquacanina MC 19 121 39727
Serrapetrona MC 19 966 40693

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
67 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
81 Km S of Fano (60888 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
97 Km E of Arezzo (99543 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 0.8 2023-11-23
22:54:15
43.1153 12.9738 14 2023-11-23
23:00:26
Sala Sismica INGV-Roma 123376081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-23 22:54:15 ± 0.05
Latitude 43.1153 ± 0.0027
Longitude 12.9738 ± 0.0025
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123376081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 287
Semi-minor axis of confidence ellipse (meter) 60
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00270
Epicentral distance of station farthest from the epicenter (degree) 0.33635
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 123376081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-23 23:00:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2023-11-23T22:54:27.73 0.6 undecidable manual S 130 37.3293 97 -0.02 48
IV.ASSB.HHZ. 2023-11-23T22:54:24.92 0.3 undecidable manual S 253 26.751 102 -0.04 72
IV.CSP1.EHZ. 2023-11-23T22:54:23.12 0.3 undecidable manual S 98 18.87 112 0.18 71
IV.SNTG.HHZ. 2023-11-23T22:54:22.04 0.6 undecidable manual S 350 15.6732 118 -0.13 49
IV.MMO1.EHZ. 2023-11-23T22:54:22.36 0.1 undecidable manual P 130 37.3293 97 -0.12 93
IV.FDMO.HHZ. 2023-11-23T22:54:21.28 0.6 undecidable manual S 134 12.6762 127 -0.21 48
IV.CESI.HHZ. 2023-11-23T22:54:21.68 0.6 undecidable manual S 205 13.4754 124 0.01 50
IV.ASSB.HHZ. 2023-11-23T22:54:21.07 1.0 positive manual P 253 26.751 102 0.2 24
IV.CSP1.EHZ. 2023-11-23T22:54:19.82 1.0 undecidable manual P 98 18.87 112 0.12 24
IV.CESI.HHZ. 2023-11-23T22:54:19.05 0.1 undecidable manual P 205 13.4754 124 0.08 98
IV.MML1.EHZ. 2023-11-23T22:54:19.85 0.3 undecidable manual S 219 0.2997 179 -0.06 77
IV.SNTG.HHZ. 2023-11-23T22:54:19.20 0.1 undecidable manual P 350 15.6732 118 -0.05 99
IV.MML1.EHZ. 2023-11-23T22:54:18.08 0.6 negative manual P 219 0.2997 179 0.12 50
IV.FDMO.HHZ. 2023-11-23T22:54:18.86 0.1 undecidable manual P 134 12.6762 127 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:0.8 0.00007755 0.38 AML other m 2023-11-23T22:54:20.22
IV.MML1.EHN. ML:0.8 0.00007925 0.56 AML other m 2023-11-23T22:54:20.01
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