Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 04-02-2024 and time 07:09:32 (Italy) in region 8 km W Monte Cavallo (MC)

A magnitude ML 0.4 earthquake occured in region: 8 km W Monte Cavallo (MC), on

  • 04-02-2024 06:09:32 (UTC)
  • 04-02-2024 07:09:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9820, 12.9030 at 10 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.

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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 8 145 145
Sellano PG 11 1079 1224
Serravalle di Chienti MC 11 1070 2294
Pieve Torina MC 14 1458 3752
Valtopina PG 15 1398 5150
Preci PG 16 724 5874
Muccia MC 16 915 6789
Visso MC 16 1107 7896
Fiordimonte MC 16 202 8098
Foligno PG 16 57155 65253
Nocera Umbra PG 17 5839 71092
Trevi PG 17 8469 79561
Pievebovigliana MC 17 866 80427
Cerreto di Spoleto PG 18 1075 81502
Sefro MC 19 422 81924
Spello PG 19 8645 90569
Ussita MC 20 444 91013

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
51 Km NE of Terni (111501 inhabitants)
75 Km W of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
96 Km S of Fano (60888 inhabitants)
99 Km SE 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 0.4 2024-02-04
06:09:32		 42.9823 12.9033 10 2024-02-04
08:39:23		 Sala Sismica INGV-Roma 125024651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-04 06:09:32 ± 0.11
Latitude 42.9823 ± 0.0036
Longitude 12.9033 ± 0.0037
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125024651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 369
Semi-minor axis of confidence ellipse (meter) 169
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) 370.0
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 19
Number of defining phases 10
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) 0.21404
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 125024651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-04 08:39:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CORL.HHZ. 2024-02-04T06:11:03.40 3.0 positive manual Pg 17.209999 0
IV.ACATE.EHZ. 2024-02-04T06:11:00.11 3.0 undecidable manual Pn 1.11 0
CH.FUORN.HHZ. 2024-02-04T06:10:55.58 3.0 undecidable manual Sn -2.63 0
ST.RONC.EHZ. 2024-02-04T06:10:53.33 3.0 undecidable manual Sg 11.11 0
IV.VENT.EHZ. 2024-02-04T06:10:48.08 3.0 undecidable manual Sg 5.59 0
IV.BSSO.HHZ. 2024-02-04T06:10:40.63 3.0 undecidable manual Sg 11.49 0
IV.GIUL.HHZ. 2024-02-04T06:10:23.79 3.0 undecidable manual Sg -0.01 0
SL.KOGS.BHZ. 2024-02-04T06:10:15.97 3.0 negative manual Pn 2.77 0
IV.CRND.HNZ. 2024-02-04T06:09:57.38 3.0 undecidable manual Pn -0.05 0
IV.NRCA.HHZ. 2024-02-04T06:09:41.09 0.3 undecidable manual S 134 23.754 112 -0.09 95
IV.ASSB.HHZ. 2024-02-04T06:09:40.16 0.3 undecidable manual S 289 20.9679 115 -0.11 95
IV.MML1.EHN. 2024-02-04T06:09:38.54 0.3 undecidable manual S 21 15.5733 122 -0.09 97
IV.FDMO.HHZ. 2024-02-04T06:09:38.64 0.3 undecidable manual S 68 16.0728 121 -0.14 96
IV.NRCA.HHZ. 2024-02-04T06:09:37.45 0.3 undecidable manual P 134 23.754 112 0.04 96
IV.FDMO.HHZ. 2024-02-04T06:09:36.09 0.3 undecidable manual P 68 16.0728 121 0.07 97
IV.ASSB.HHZ. 2024-02-04T06:09:36.83 0.3 negative manual P 289 20.9679 115 -0.05 96
IV.MML1.EHN. 2024-02-04T06:09:36.08 0.3 undecidable manual P 21 15.5733 122 0.15 95
IV.CESI.HHZ. 2024-02-04T06:09:35.77 0.3 undecidable manual S 2 2.4975 166 0.03 100
IV.CESI.HHZ. 2024-02-04T06:09:34.57 0.6 negative manual P 2 2.4975 166 0.3 63
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.6 0.000023885820000000002 6.6976 AML other m 2024-02-04T06:09:40.97
IV.ASSB.HHN. ML:0.2 0.0000110594226 3.04 AML other m 2024-02-04T06:09:39.63
IV.NRCA.HHE. ML:0.5 0.000020797244999999998 0.0992 AML other m 2024-02-04T06:09:41.58
IV.NRCA.HHN. ML:0.5 0.000021422514999999998 0.1184 AML other m 2024-02-04T06:09:41.29
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