Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 25-10-2021 and time 08:44:05 (Italy) in region 4 km W Muccia (MC)

A magnitude ML 0.6 earthquake occured in region: 4 km W Muccia (MC), on

  • 25-10-2021 06:44:05 (UTC)
  • 25-10-2021 08:44:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0900, 13.0010 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
Muccia MC 4 915 915
Serravalle di Chienti MC 4 1070 1985
Pieve Torina MC 7 1458 3443
Pievebovigliana MC 8 866 4309
Camerino MC 8 6974 11283
Sefro MC 8 422 11705
Fiordimonte MC 9 202 11907
Pioraco MC 10 1134 13041
Monte Cavallo MC 11 145 13186
Fiuminata MC 12 1402 14588
Fiastra MC 14 559 15147
Castelraimondo MC 14 4587 19734
Acquacanina MC 16 121 19855
Nocera Umbra PG 17 5839 25694
Gagliole MC 18 620 26314
Serrapetrona MC 18 966 27280
Matelica MC 19 9981 37261
Esanatoglia MC 19 2034 39295
Visso MC 19 1107 40402
Caldarola MC 19 1823 42225
Ussita MC 20 444 42669

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
66 Km NE of Terni (111501 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
75 Km NW of Teramo (54892 inhabitants)
84 Km S of Fano (60888 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Pesaro (94582 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 0.6 2021-10-25
06:44:05		 43.0902 13.001 10 2021-10-25
07:02:43		 Sala Sismica INGV-Roma 96973901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-25 06:44:05 ± 0.13
Latitude 43.0902 ± 0.0036
Longitude 13.0010 ± 0.0062
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 96973901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 196
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
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 30
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34984
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 96973901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-25 07:02:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MDI.HHZ. 2021-10-25T06:45:46.38 3.0 undecidable manual Sn 1.75 0
CR.STON.BHZ. 2021-10-25T06:45:44.20 3.0 undecidable manual Sg 8.97 0
IV.GRIS.EHZ. 2021-10-25T06:45:37.51 3.0 undecidable manual Sn -4.56 0
AC.VLO.HHZ. 2021-10-25T06:45:24.00 3.0 undecidable manual Pn 4.46 0
IV.SCIAR.HHZ. 2021-10-25T06:45:22.74 3.0 undecidable manual Pg 10.08 0
IV.EUCT.HNZ. 2021-10-25T06:45:06.28 3.0 negative manual Pg 9.58 0
IV.ICAI.EHZ. 2021-10-25T06:44:59.28 3.0 undecidable manual Sn -5.09 0
IV.GRIS.EHZ. 2021-10-25T06:44:57.57 3.0 undecidable manual Pn 0.82 0
IV.PCN.EHZ. 2021-10-25T06:44:57.93 3.0 negative manual Pg 7.08 0
IV.FIR.HHZ. 2021-10-25T06:44:53.50 3.0 undecidable manual Sg 2.25 0
IX.NSC3.EHZ.02 2021-10-25T06:44:45.81 3.0 undecidable manual Pg 5.86 0
IV.MURB.HNZ. 2021-10-25T06:44:22.58 3.0 undecidable manual S 0.63 0
IV.OFFI.HHZ. 2021-10-25T06:44:21.17 3.0 undecidable manual P 0
IV.PP3.EHZ. 2021-10-25T06:44:21.73 3.0 undecidable manual S -4.15 0
IV.LPEL.HHZ. 2021-10-25T06:44:19.96 3.0 positive manual P -1.3 0
IV.MF5.EHZ. 2021-10-25T06:44:12.79 1.0 undecidable manual P 107 38.8278 50 0.15 23
IV.SNTG.HHZ. 2021-10-25T06:44:12.34 0.3 undecidable manual S 345 18.9699 118 -0.23 71
IV.EL6.EHE. 2021-10-25T06:44:11.16 1.0 undecidable manual P 17 27.75 50 0.24 23
IV.CSP1.EHZ. 2021-10-25T06:44:11.81 0.3 undecidable manual S 89 16.4724 122 -0.04 74
IT.MTCL.HGE. 2021-10-25T06:44:10.07 0.3 undecidable manual S 181 10.6782 134 -0.17 73
IV.CESI.HHZ. 2021-10-25T06:44:10.57 0.3 undecidable manual S 220 12.2766 130 -0.08 74
IV.CSP1.EHZ. 2021-10-25T06:44:09.07 0.3 undecidable manual P 89 16.4724 122 0.07 74
IV.FDMO.HHZ. 2021-10-25T06:44:09.65 0.3 undecidable manual S 130 9.1797 138 -0.22 72
IV.MML1.EHZ. 2021-10-25T06:44:09.21 0.3 undecidable manual S 317 3.4965 161 0.36 71
IV.SNTG.HHZ. 2021-10-25T06:44:09.10 0.3 undecidable manual P 345 18.9699 118 -0.32 70
IV.FDMO.HHZ. 2021-10-25T06:44:08.03 0.1 undecidable manual P 130 9.1797 138 0.17 97
IT.MTCL.HGE. 2021-10-25T06:44:08.04 0.1 undecidable manual P 181 10.6782 134 -0.03 100
IV.CESI.HHZ. 2021-10-25T06:44:08.35 0.1 undecidable manual P 220 12.2766 130 0.04 100
IV.MML1.EHZ. 2021-10-25T06:44:07.51 0.3 undecidable manual P 317 3.4965 161 0.24 73
IV.ARRO.EHZ. 2021-10-25T06:44:04.49 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 0.0000817 0.22 AML other m 2021-10-25T06:44:10.05
IV.FDMO.HHN. ML:0.8 0.0000891 0.14 AML other m 2021-10-25T06:44:10.14
IV.MML1.EHE. ML:0.5 0.000057512275 0.2208 AML other m 2021-10-25T06:44:09.48
IV.MML1.EHN. ML:0.5 0.000060519105 0.08 AML other m 2021-10-25T06:44:09.60
IV.MML1.HNN. ML:0.7 0.000086295975 0.4992 AML other m 2021-10-25T06:44:12.05
IV.CESI.HHN. ML:0.3 0.000018410719999999998 0.4192 AML other m 2021-10-25T06:44:10.71
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