Earthquake with magnitude of ML 0.5 on date 12-05-2023 and time 11:21:28 (UTC) in region 4 km SE Monte Cavallo (MC)

A magnitude ML 0.5 earthquake occured in region: 4 km SE Monte Cavallo (MC), on

  • 12-05-2023 11:21:28 (UTC)
  • 12-05-2023 13:21:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9650, 13.0350 at 9 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 4 145 145
Visso MC 6 1107 1252
Ussita MC 9 444 1696
Pieve Torina MC 9 1458 3154
Fiordimonte MC 9 202 3356
Preci PG 10 724 4080
Pievebovigliana MC 12 866 4946
Sellano PG 12 1079 6025
Castelsantangelo sul Nera MC 12 281 6306
Fiastra MC 13 559 6865
Muccia MC 13 915 7780
Acquacanina MC 14 121 7901
Serravalle di Chienti MC 14 1070 8971
Bolognola MC 16 142 9113
Cerreto di Spoleto PG 19 1075 10188
Camerino MC 19 6974 17162
Norcia PG 20 4957 22119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
55 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
97 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 0.5 2023-05-12
11:21:28
42.9647 13.035 9 2023-05-12
11:28:11
Sala Sismica INGV-Roma 117285291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-12 11:21:28 ± 0.08
Latitude 42.9647 ± 0.0018
Longitude 13.0350 ± 0.0025
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117285291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 200
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.17807
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 117285291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-12 11:28:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
7C.SPAOL.HNZ. 2023-05-12T11:23:01.26 3.0 positive manual Pg 14.03 0
OX.MARN.HHZ. 2023-05-12T11:22:57.08 3.0 undecidable manual Sg 15.59 0
OX.PLRO.HHZ. 2023-05-12T11:22:49.11 3.0 undecidable manual Sn -6.48 0
FR.SAOF.HHZ.00 2023-05-12T11:22:35.86 3.0 undecidable manual Pg 11.04 0
GU.FIVI.HNZ. 2023-05-12T11:22:26.18 3.0 undecidable manual Sn -4.58 0
OX.PLRO.HHZ. 2023-05-12T11:22:22.87 3.0 negative manual Pg 7.24 0
IV.MCRV.HHZ. 2023-05-12T11:22:15.00 3.0 undecidable manual Pg 8.34 0
IV.OSSC.HHZ. 2023-05-12T11:22:10.87 3.0 undecidable manual Sg 4.84 0
IV.CSNT.HHZ. 2023-05-12T11:22:05.91 3.0 undecidable manual Sg 0.94 0
IV.LMD.HHZ. 2023-05-12T11:22:02.99 3.0 undecidable manual Sn -2.83 0
IV.MTRZ.HHZ. 2023-05-12T11:21:56.31 3.0 undecidable manual Pg 4.45 0
IV.ATMI.HHZ. 2023-05-12T11:21:48.53 3.0 undecidable manual Sg 0.31 0
IV.BARO.EHZ. 2023-05-12T11:21:38.32 3.0 undecidable manual Pn -5.96 0
IV.CSP1.EHZ. 2023-05-12T11:21:36.34 0.6 undecidable manual S 44 19.7691 115 -0.1 48
IV.NRCA.HHZ. 2023-05-12T11:21:35.18 0.6 undecidable manual S 156 15.873 120 -0.08 49
IV.ATMI.HHZ. 2023-05-12T11:21:34.93 3.0 undecidable manual P -2.85 0
IV.FDMO.HHZ. 2023-05-12T11:21:33.45 0.6 undecidable manual S 28 9.0798 136 0.08 49
IV.CSP1.EHZ. 2023-05-12T11:21:33.17 0.6 negative manual P 44 19.7691 115 -0.07 48
IV.CESI.HHZ. 2023-05-12T11:21:33.97 0.6 undecidable manual S 293 11.4774 129 -0.03 49
IT.MTCL.HGZ. 2023-05-12T11:21:32.40 0.6 undecidable manual S 318 4.3956 155 -0.03 50
IV.NRCA.HHZ. 2023-05-12T11:21:32.67 0.6 negative manual P 156 15.873 120 0.11 48
IV.FDMO.HHZ. 2023-05-12T11:21:31.53 0.1 undecidable manual P 28 9.0798 136 0.06 99
IV.CESI.HHZ. 2023-05-12T11:21:31.81 0.1 undecidable manual P 293 11.4774 129 -0.03 99
IT.MTCL.HGZ. 2023-05-12T11:21:30.96 0.1 undecidable manual P 318 4.3956 155 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.6 0.0000475 0.16 AML other m 2023-05-12T11:21:34.20
IV.CESI.HHE. ML:0.5 0.00003265 0.24 AML other m 2023-05-12T11:21:34.21
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