Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 01-10-2023 and time 14:06:05 (Italy) in region 4 km SW Fiordimonte (MC)

A magnitude ML 0.4 earthquake occured in region: 4 km SW Fiordimonte (MC), on

  • 01-10-2023 12:06:05 (UTC)
  • 01-10-2023 14:06:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0020, 13.0680 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fiordimonte MC 4 202 202
Pieve Torina MC 5 1458 1660
Monte Cavallo MC 5 145 1805
Pievebovigliana MC 7 866 2671
Visso MC 8 1107 3778
Fiastra MC 8 559 4337
Ussita MC 9 444 4781
Muccia MC 9 915 5696
Acquacanina MC 9 121 5817
Serravalle di Chienti MC 12 1070 6887
Bolognola MC 13 142 7029
Preci PG 14 724 7753
Castelsantangelo sul Nera MC 14 281 8034
Camerino MC 15 6974 15008
Sellano PG 17 1079 16087
Sefro MC 19 422 16509
Sarnano MC 19 3264 19773
Cessapalombo MC 20 512 20285
Caldarola MC 20 1823 22108

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
56 Km E of Perugia (166134 inhabitants)
60 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
94 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 0.4 2023-10-01
12:06:05		 43.0022 13.0677 10 2023-10-01
12:14:50		 Sala Sismica INGV-Roma 121643321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-01 12:06:05 ± 0.1
Latitude 43.0022 ± 0.0036
Longitude 13.0677 ± 0.0025
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 121643321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 338
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20505
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 121643321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-01 12:14:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PP3.EHZ. 2023-10-01T12:06:15.48 3.0 positive manual P -0.11 0
IV.GUMA.HHZ. 2023-10-01T12:06:13.84 0.3 undecidable manual S 73 22.755 114 0.06 72
IV.MML1.EHZ. 2023-10-01T12:06:11.34 0.3 undecidable manual S 328 14.5743 125 0.02 74
IV.CSP1.EHZ. 2023-10-01T12:06:11.62 0.3 undecidable manual S 48 14.874 124 0.2 71
IV.CESI.HHZ. 2023-10-01T12:06:10.91 0.3 undecidable manual S 271 13.1757 128 -0.03 74
IV.GUMA.HHZ. 2023-10-01T12:06:09.98 0.1 undecidable manual P 73 22.755 114 -0.15 94
IV.CESI.HHZ. 2023-10-01T12:06:08.51 0.1 undecidable manual P 271 13.1757 128 0.02 98
IV.CSP1.EHZ. 2023-10-01T12:06:08.61 0.1 positive manual P 48 14.874 124 -0.15 96
IV.MC2.EHE. 2023-10-01T12:06:08.72 0.1 undecidable manual P 136 14.0748 126 0.09 97
IV.FDMO.HHZ. 2023-10-01T12:06:08.88 0.1 undecidable manual S 23 4.0959 158 -0.09 99
IV.MML1.EHZ. 2023-10-01T12:06:08.78 0.1 undecidable manual P 328 14.5743 125 0.07 97
IT.MTCL.HGZ. 2023-10-01T12:06:07.49 0.1 undecidable manual P 261 5.5944 151 0.01 100
IV.FDMO.HHZ. 2023-10-01T12:06:07.38 0.1 positive manual P 23 4.0959 158 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.6 0.00007164414500000001 0.096 AML other m 2023-10-01T12:06:09.22
IV.FDMO.HHN. ML:1.0 0.000179 0.14 AML other m 2023-10-01T12:06:09.12
IV.CESI.HHE. ML:0.2 0.000015990400000000002 0.1408 AML other m 2023-10-01T12:06:11.06
IV.CESI.HHN. ML:0.5 0.000028313465 0.2432 AML other m 2023-10-01T12:06:11.56
IV.CSP1.EHE. ML:0.4 0.000022627695 0.16 AML other m 2023-10-01T12:06:12.74
IV.CSP1.EHN. ML:0.6 0.000032754465000000004 0.0832 AML other m 2023-10-01T12:06:12.19
IV.MML1.EHE. ML:0.0 0.000011758722 0.16 AML other m 2023-10-01T12:06:11.52
IV.MML1.EHN. ML:0.0 0.000011867889 0.1408 AML other m 2023-10-01T12:06:11.51
IV.GUMA.HHE. ML:0.6 0.000026476029999999997 0.1792 AML other m 2023-10-01T12:06:13.95
IV.GUMA.HHN. ML:0.5 0.00002240529 0.544 AML other m 2023-10-01T12:06:17.77
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