Earthquake with magnitude of ML 0.4 on date 01-04-2023 and time 07:11:44 (Italy) in region 3 km E Monte Cavallo (MC)

A magnitude ML 0.4 earthquake occured in region: 3 km E Monte Cavallo (MC), on

  • 01-04-2023 05:11:44 (UTC)
  • 01-04-2023 07:11:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0000, 13.0380 at 5 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.

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 3 145 145
Pieve Torina MC 5 1458 1603
Fiordimonte MC 6 202 1805
Pievebovigliana MC 8 866 2671
Visso MC 9 1107 3778
Muccia MC 9 915 4693
Ussita MC 10 444 5137
Fiastra MC 11 559 5696
Serravalle di Chienti MC 11 1070 6766
Acquacanina MC 12 121 6887
Preci PG 13 724 7611
Castelsantangelo sul Nera MC 15 281 7892
Sellano PG 15 1079 8971
Bolognola MC 15 142 9113
Camerino MC 15 6974 16087
Sefro MC 18 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 inhabitants)
100 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 0.4 2023-04-01
05:11:44
42.9997 13.0382 5 2024-03-01
17:18:02
Bollettino Sismico Italiano INGV 116121241
Reviewed
Rev100
Md 1.4 2023-04-01
05:11:44
42.9903 13.0373 3 2023-04-01
07:34:20
Sala Sismica INGV-Roma 115935901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-01 05:11:44 ± 0.13
Latitude 42.9997 ± 0.0036
Longitude 13.0382 ± 0.0049
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116121241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 29
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.17537
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.0
Num. used stations 1
Type of magnitude ML
Reference to an origin 116121241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-13 23:59:49

Md:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 4
Type of magnitude Md
Reference to an origin 115935901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-01 07:34:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGRT.HHZ. 2023-04-01T05:12:28.83 3.0 undecidable manual Sn 0.01 0
IV.NRCA.HHZ. 2023-04-01T05:11:51.73 0.6 undecidable manual S 161 19.4694 105 0.1 49
IV.MML1.HNE. 2023-04-01T05:11:49.88 0.6 undecidable manual S 337 13.7751 110 0.14 49
IV.CESI.HHZ. 2023-04-01T05:11:48.90 0.1 undecidable manual S 273 10.878 115 0.08 100
IV.NRCA.HHZ. 2023-04-01T05:11:48.48 1.0 undecidable manual P 161 19.4694 105 -0.21 24
IV.FDMO.HHZ. 2023-04-01T05:11:47.39 0.6 undecidable manual S 44 5.6943 131 0.08 50
IV.CESI.HHZ. 2023-04-01T05:11:47.19 0.3 undecidable manual P 273 10.878 115 0.13 74
IV.MML1.HNE. 2023-04-01T05:11:47.38 0.1 undecidable manual P 337 13.7751 110 -0.22 97
IV.FDMO.HHZ. 2023-04-01T05:11:46.27 0.3 undecidable manual P 44 5.6943 131 0.08 76
IT.MTCL.HGZ. 2023-04-01T05:11:46.58 0.6 undecidable manual S 258 3.1968 147 -0.16 50
IT.MTCL.HGZ. 2023-04-01T05:11:45.78 0.3 undecidable manual P 258 3.1968 147 -0.08 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.4 0.00001878527 0.0992 AML other m 2023-04-01T05:11:52.03
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