Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 20-11-2021 and time 04:02:10 (Italy) in region 2 km E Fiordimonte (MC)

A magnitude ML 0.6 earthquake occured in region: 2 km E Fiordimonte (MC), on

  • 20-11-2021 03:02:10 (UTC)
  • 20-11-2021 04:02:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0370, 13.1160 at 10 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
Fiordimonte MC 2 202 202
Fiastra MC 3 559 761
Pievebovigliana MC 4 866 1627
Acquacanina MC 5 121 1748
Pieve Torina MC 5 1458 3206
Muccia MC 8 915 4121
Bolognola MC 10 142 4263
Ussita MC 10 444 4707
Monte Cavallo MC 10 145 4852
Camerino MC 12 6974 11826
Visso MC 12 1107 12933
Serravalle di Chienti MC 14 1070 14003
Cessapalombo MC 14 512 14515
Caldarola MC 15 1823 16338
Sarnano MC 15 3264 19602
Castelsantangelo sul Nera MC 16 281 19883
Camporotondo di Fiastrone MC 16 563 20446
Serrapetrona MC 17 966 21412
Belforte del Chienti MC 17 1886 23298
Sefro MC 18 422 23720
San Ginesio MC 18 3498 27218
Gualdo MC 19 815 28033
Preci PG 19 724 28757
Pioraco MC 19 1134 29891
Castelraimondo MC 20 4587 34478

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
99 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
Bulletin
Rev1000 		ML 0.6 2021-11-20
03:02:10		 43.0372 13.1155 10 2022-03-30
13:04:20		 Bollettino Sismico Italiano INGV 98247331
Reviewed
Rev100 		ML 1.1 2021-11-20
03:02:11		 43.038 13.1193 8 2021-11-20
03:14:43		 Sala Sismica INGV-Roma 97614351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-20 03:02:10 ± 0.08
Latitude 43.0372 ± 0.0027
Longitude 13.1155 ± 0.0037
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98247331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 337
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
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) 60
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.02068
Epicentral distance of station farthest from the epicenter (degree) 0.25271
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 98247331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-24 11:36:09

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 97614351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-20 03:14:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2021-11-20T03:02:20.72 0.3 undecidable manual S 330 28.0497 50 -0.24 69
IV.NRCA.HNZ. 2021-11-20T03:02:19.10 0.3 undecidable manual S 180 22.5552 114 -0.32 68
IV.MMO1.EHZ. 2021-11-20T03:02:19.19 0.3 undecidable manual S 132 22.9548 114 -0.35 68
IV.GUMA.HNZ. 2021-11-20T03:02:18.43 0.3 undecidable manual S 81 18.0708 119 0.43 67
IV.MC2.EHZ. 2021-11-20T03:02:17.24 0.6 undecidable manual S 157 15.1737 124 0.08 48
IV.CESI.HHZ. 2021-11-20T03:02:17.93 0.1 undecidable manual S 258 17.4714 120 0.09 96
IV.MML1.EHZ. 2021-11-20T03:02:16.94 0.6 undecidable manual S 306 14.3745 125 0 49
IV.SNTG.HHZ. 2021-11-20T03:02:16.55 0.1 undecidable manual P 330 28.0497 50 -0.12 94
IV.PF6.EHZ. 2021-11-20T03:02:16.26 0.6 undecidable manual S 30 12.876 128 -0.25 47
IV.MMO1.EHZ. 2021-11-20T03:02:15.70 0.1 undecidable manual P 132 22.9548 114 -0.16 94
IV.FEMA.HNZ. 2021-11-20T03:02:15.91 0.6 undecidable manual S 213 9.879 136 0.17 48
IV.CSP1.EHZ. 2021-11-20T03:02:15.53 0.1 undecidable manual S 50 9.4794 137 -0.1 97
IV.NRCA.HNZ. 2021-11-20T03:02:15.75 0.1 undecidable manual P 180 22.5552 114 -0.04 96
IV.GUMA.HNZ. 2021-11-20T03:02:15.21 0.3 undecidable manual P 81 18.0708 119 0.24 70
IV.MML1.EHZ. 2021-11-20T03:02:14.51 0.1 undecidable manual P 306 14.3745 125 0.16 95
IV.MC2.EHZ. 2021-11-20T03:02:14.73 0.3 undecidable manual P 157 15.1737 124 0.25 70
IV.PF6.EHZ. 2021-11-20T03:02:14.14 0.1 undecidable manual P 30 12.876 128 0.03 98
IV.CESI.HHZ. 2021-11-20T03:02:14.96 0.1 undecidable manual P 258 17.4714 120 0.09 96
IV.CSP1.EHZ. 2021-11-20T03:02:13.74 0.1 undecidable manual P 50 9.4794 137 0.14 96
IT.MTCL.HGZ. 2021-11-20T03:02:13.91 0.3 undecidable manual P 243 10.5783 134 0.15 72
IV.FDMO.HHZ. 2021-11-20T03:02:13.97 0.1 undecidable manual S 268 2.2977 167 -0.47 91
IV.FEMA.HNZ. 2021-11-20T03:02:13.99 0.3 undecidable manual P 213 9.879 136 0.33 69
IV.FDMO.HHZ. 2021-11-20T03:02:12.89 0.1 undecidable manual P 268 2.2977 167 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.9 0.00013127919999999997 0.1408 AML other m 2021-11-20T03:02:14.10
IV.FDMO.HHE. ML:0.6 0.00008158789 0.1408 AML other m 2021-11-20T03:02:14.62
IV.CSP1.EHN. ML:1.2 0.000191 1.28 AML other m 2021-11-20T03:02:15.05
IV.CSP1.EHE. ML:1.2 0.00022700000000000002 0.1 AML other m 2021-11-20T03:02:15.64
IV.MML1.EHN. ML:0.5 0.00003096525 0.2608 AML other m 2021-11-20T03:02:17.62
IV.MMO1.EHN. ML:0.5 0.000017584295 1.8992 AML other m 2021-11-20T03:02:20.10
IV.MML1.EHE. ML:0.4 0.00002551983 1.8592 AML other m 2021-11-20T03:02:18.88
IV.CESI.HHE. ML:0.1 0.000009844982 0.08 AML other m 2021-11-20T03:02:19.90
IV.MMO1.EHE. ML:0.5 0.000017827796 1.6 AML other m 2021-11-20T03:02:20.91
IV.CESI.HHN. ML:0.3 0.000013159827999999999 0.16 AML other m 2021-11-20T03:02:20.86
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