Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 01-04-2023 and time 18:30:34 (Italy) in region 3 km E Monte Cavallo (MC)

A magnitude ML 0.6 earthquake occured in region: 3 km E Monte Cavallo (MC), on

  • 01-04-2023 16:30:34 (UTC)
  • 01-04-2023 18:30:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9990, 13.0320 at 3 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.

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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 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
Serravalle di Chienti MC 10 1070 5763
Ussita MC 11 444 6207
Fiastra MC 11 559 6766
Acquacanina MC 12 121 6887
Preci PG 13 724 7611
Sellano PG 15 1079 8690
Castelsantangelo sul Nera MC 15 281 8971
Camerino MC 16 6974 15945
Bolognola MC 16 142 16087
Sefro MC 18 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
67 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 0.6 2023-04-01
16:30:34		 42.9993 13.0325 3 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116606601
Reviewed
Rev100 		ML 0.6 2023-04-01
16:30:34		 42.9975 13.0337 3 2023-04-01
16:47:21		 Sala Sismica INGV-Roma 115951691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-01 16:30:34 ± 0.07
Latitude 42.9993 ± 0.0018
Longitude 13.0325 ± 0.0025
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116606601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 229
Semi-minor axis of confidence ellipse (meter) 104
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 164
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20235
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 115951691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-01 16:47:21

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 116606601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-14 01:41:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SALB.HHZ. 2023-04-01T16:32:15.58 3.0 undecidable manual Sn -5.78 0
IV.MRVN.HHZ. 2023-04-01T16:32:15.41 3.0 undecidable manual Sg 17.030001 0
IV.HPAC.HHZ. 2023-04-01T16:32:06.67 3.0 undecidable manual P -3.93 0
IV.IVPL.HHZ. 2023-04-01T16:32:00.23 3.0 undecidable manual P 1.203 0
IV.ACATE.HNZ. 2023-04-01T16:31:55.75 3.0 positive manual P -9.38 0
IV.MSRU.HHZ. 2023-04-01T16:31:43.25 3.0 undecidable manual P -8.28 0
OX.MARN.HHZ. 2023-04-01T16:31:26.74 3.0 undecidable manual Sn -9.41 0
OX.MPRI.HHZ. 2023-04-01T16:31:15.49 3.0 negative manual P -9.99 0
IV.VOBA.EHZ. 2023-04-01T16:31:09.30 3.0 negative manual P -9.99 0
IV.ARVD.HHZ. 2023-04-01T16:30:43.26 3.0 undecidable manual S -8.44 0
7F.SIB1.EHE. 2023-04-01T16:30:42.08 0.3 undecidable manual S 121 22.4553 97 0.12 71
IV.PF6.EHN. 2023-04-01T16:30:40.97 0.3 undecidable manual S 40 20.1687 97 -0.2 70
IV.CSP1.EHZ. 2023-04-01T16:30:40.24 0.6 undecidable manual S 54 17.3715 99 0.06 49
IV.NRCA.HHZ. 2023-04-01T16:30:40.80 0.3 undecidable manual S 160 19.5693 98 -0.14 71
IV.PF6.EHN. 2023-04-01T16:30:38.29 0.3 undecidable manual P 40 20.1687 97 0.11 72
IV.MML1.HNE. 2023-04-01T16:30:38.88 0.6 undecidable manual S 339 13.5753 101 -0.02 49
7F.SIB1.EHE. 2023-04-01T16:30:38.92 0.1 undecidable manual P 121 22.4553 97 0.28 92
IV.CESI.HHZ. 2023-04-01T16:30:38.04 0.6 undecidable manual S 273 10.3785 104 0.22 47
IV.NRCA.HHZ. 2023-04-01T16:30:37.83 0.1 undecidable manual P 160 19.5693 98 -0.22 94
IV.CSP1.EHZ. 2023-04-01T16:30:37.63 0.3 undecidable manual P 54 17.3715 99 0.02 73
IV.MML1.HNE. 2023-04-01T16:30:36.84 0.3 undecidable manual P 339 13.5753 101 -0.03 74
IV.CESI.HHZ. 2023-04-01T16:30:36.22 0.1 positive manual P 273 10.3785 104 -0.03 99
IV.FDMO.HHZ. 2023-04-01T16:30:36.42 0.3 undecidable manual S 47 6.0939 113 0.04 75
IV.FDMO.HHZ. 2023-04-01T16:30:35.32 0.1 undecidable manual P 47 6.0939 113 -0.1 98
IT.MTCL.HGZ. 2023-04-01T16:30:35.45 0.6 undecidable manual S 257 2.7972 133 0.04 50
IT.MTCL.HGZ. 2023-04-01T16:30:34.82 0.1 undecidable manual P 257 2.7972 133 -0.04 100
IV.ARVD.HHZ. 2023-04-01T16:30:34.50 3.0 negative manual P -9.53 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.8 0.00010436467 0.2816 AML other m 2023-04-01T16:30:38.39
IV.CESI.HHE. ML:0.4 0.000042237155 0.1408 AML other m 2023-04-01T16:30:38.37
IV.NRCA.HHN. ML:0.6 0.0000354 0.12 AML other m 2023-04-01T16:30:41.09
IV.NRCA.HHE. ML:0.6 0.00003545 1.1 AML other m 2023-04-01T16:30:41.64
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