Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 27-11-2021 and time 03:17:38 (Italy) in region 4 km W Monte Cavallo (MC)

A magnitude ML 2.1 earthquake occured in region: 4 km W Monte Cavallo (MC), on

  • 27-11-2021 02:17:38 (UTC)
  • 27-11-2021 03:17:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0100, 12.9540 at 12 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 4 145 145
Serravalle di Chienti MC 7 1070 1215
Pieve Torina MC 9 1458 2673
Muccia MC 11 915 3588
Fiordimonte MC 12 202 3790
Pievebovigliana MC 12 866 4656
Sellano PG 14 1079 5735
Visso MC 14 1107 6842
Sefro MC 15 422 7264
Preci PG 16 724 7988
Ussita MC 17 444 8432
Fiastra MC 17 559 8991
Camerino MC 17 6974 15965
Valtopina PG 17 1398 17363
Nocera Umbra PG 17 5839 23202
Acquacanina MC 18 121 23323
Pioraco MC 19 1134 24457
Fiuminata MC 20 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
56 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Fano (60888 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
100 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 2.1 2021-11-27
02:17:38		 43.0098 12.954 12 2022-03-30
13:04:28		 Bollettino Sismico Italiano INGV 99611521
Reviewed
Rev100 		ML 2.1 2021-11-27
02:17:38		 43.0147 12.9533 12 2021-11-27
02:24:18		 Sala Sismica INGV-Roma 97852971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-27 02:17:38 ± 0.05
Latitude 43.0098 ± 0.0027
Longitude 12.9540 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99611521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 22
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 0.62233
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 99611521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-11 09:32:49

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 97852971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-27 02:24:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-11-27T02:17:59.93 0.6 undecidable manual S 129 68.0763 91 0.78 37
IV.FRON.EHZ. 2021-11-27T02:17:57.18 0.3 undecidable manual S 342 59.2962 91 0.38 63
IV.CESX.HHZ. 2021-11-27T02:17:55.80 0.3 undecidable manual S 214 53.6019 91 0.52 63
IV.ARVD.HHZ. 2021-11-27T02:17:55.89 0.3 undecidable manual S 359 54.2013 91 0.46 63
IV.ARRO.EHZ. 2021-11-27T02:17:54.55 0.3 undecidable manual S 198 50.2164 91 0.19 68
IV.SSFR.HHZ. 2021-11-27T02:17:54.52 0.3 undecidable manual S 344 49.3173 91 0.39 65
IV.CING.HHZ. 2021-11-27T02:17:53.14 0.3 undecidable manual S 26 45.0216 91 0.15 68
IV.LNSS.HHZ. 2021-11-27T02:17:53.35 0.3 undecidable manual S 171 45.7209 91 0.19 69
IV.MF5.EHZ. 2021-11-27T02:17:52.72 0.1 undecidable manual S 93 41.1255 91 0.78 77
IV.SAP2.EHE. 2021-11-27T02:17:51.74 0.3 undecidable manual S 75 37.3293 92 0.8 57
IV.COR1.EHZ. 2021-11-27T02:17:51.16 0.1 undecidable manual P 3 69.0753 91 0.58 79
IV.EL6.EHZ. 2021-11-27T02:17:50.84 0.1 undecidable manual S 19 37.4292 92 -0.12 94
IV.TERO.HHZ. 2021-11-27T02:17:50.47 0.3 undecidable manual P 129 68.0763 91 0.04 68
IV.FOSV.EHZ. 2021-11-27T02:17:50.31 0.3 undecidable manual S 334 35.2425 92 -0.07 72
IV.PIEI.HHZ. 2021-11-27T02:17:50.23 0.1 undecidable manual P 330 67.4769 91 -0.09 89
IV.MMO1.EHZ. 2021-11-27T02:17:49.40 0.1 undecidable manual S 112 32.6451 92 -0.29 91
IV.GUMA.HHZ. 2021-11-27T02:17:49.70 0.1 undecidable manual S 79 31.4463 92 0.33 91
IV.ATCC.EHZ. 2021-11-27T02:17:49.78 0.3 undecidable manual S 308 32.0457 92 0.26 69
IV.MNTT.EHZ. 2021-11-27T02:17:48.58 0.3 undecidable manual P 83 52.3032 91 0.58 61
IV.ARVD.HHZ. 2021-11-27T02:17:48.06 0.1 undecidable manual P 359 54.2013 91 -0.22 89
IV.FRON.EHZ. 2021-11-27T02:17:48.78 0.6 undecidable manual P 342 59.2962 91 -0.29 44
IV.SNTG.HHZ. 2021-11-27T02:17:48.14 0.1 undecidable manual S 358 27.2505 93 -0.1 96
IV.PF6.EHN. 2021-11-27T02:17:47.01 0.1 undecidable manual S 54 24.0537 93 -0.4 91
IV.ARRO.EHZ. 2021-11-27T02:17:47.50 0.1 undecidable manual P 198 50.2164 91 -0.16 90
IV.SMA1.EHZ. 2021-11-27T02:17:47.91 0.3 undecidable manual P 143 52.3032 91 -0.08 69
IV.ASSB.HHZ. 2021-11-27T02:17:47.49 0.1 undecidable manual S 279 24.2535 93 0.05 97
IV.SSFR.HHZ. 2021-11-27T02:17:47.32 0.3 undecidable manual P 344 49.3173 91 -0.21 68
IV.CESX.HHZ. 2021-11-27T02:17:47.94 0.1 undecidable manual P 214 53.6019 91 -0.25 88
IV.MC2.EHZ. 2021-11-27T02:17:46.87 0.1 undecidable manual S 120 21.9669 94 0.03 98
IV.CSP1.EHZ. 2021-11-27T02:17:46.55 0.3 undecidable manual S 66 22.2555 94 -0.37 68
IV.LNSS.HHZ. 2021-11-27T02:17:46.74 0.3 undecidable manual P 171 45.7209 91 -0.23 67
IV.NRCA.HNZ. 2021-11-27T02:17:46.95 0.1 undecidable manual S 146 23.4543 94 -0.29 92
IV.FIU1.HNZ. 2021-11-27T02:17:46.13 0.1 undecidable manual S 355 19.869 95 -0.16 96
IV.MF5.EHZ. 2021-11-27T02:17:46.45 0.1 undecidable manual P 93 41.1255 91 0.18 92
IV.CING.HHZ. 2021-11-27T02:17:46.68 0.1 positive manual P 26 45.0216 91 -0.19 91
IV.FOSV.EHZ. 2021-11-27T02:17:45.17 0.1 negative manual P 334 35.2425 92 -0.2 93
IV.EL6.EHZ. 2021-11-27T02:17:45.55 0.1 negative manual P 19 37.4292 92 -0.15 93
IV.SAP2.EHE. 2021-11-27T02:17:45.88 0.3 undecidable manual P 75 37.3293 92 0.19 69
IV.MMO1.EHZ. 2021-11-27T02:17:44.71 0.1 undecidable manual P 112 32.6451 92 -0.25 91
IV.GUMA.HHZ. 2021-11-27T02:17:44.84 0.1 positive manual P 79 31.4463 92 0.06 96
IV.ATCC.EHZ. 2021-11-27T02:17:44.83 0.1 negative manual P 308 32.0457 92 -0.04 96
IV.SNTG.HHZ. 2021-11-27T02:17:43.81 0.1 undecidable manual P 358 27.2505 93 -0.32 92
IV.MC2.EHZ. 2021-11-27T02:17:43.34 0.3 positive manual P 120 21.9669 94 0.02 74
IV.PF6.EHN. 2021-11-27T02:17:43.36 0.1 positive manual P 54 24.0537 93 -0.29 93
IV.CSP1.EHZ. 2021-11-27T02:17:43.20 0.1 positive manual P 66 22.2555 94 -0.17 95
IV.FEMA.HNZ. 2021-11-27T02:17:43.71 0.3 undecidable manual S 124 9.3795 127 0.06 74
IV.NRCA.HNZ. 2021-11-27T02:17:43.35 0.1 negative manual P 146 23.4543 94 -0.2 94
IT.FOPC.HGZ. 2021-11-27T02:17:43.20 0.1 undecidable manual P 258 20.868 95 0.05 98
IV.FDMO.HHZ. 2021-11-27T02:17:43.79 0.3 undecidable manual S 75 11.1777 119 -0.26 72
IV.ASSB.HHZ. 2021-11-27T02:17:43.58 0.1 positive manual P 279 24.2535 93 -0.09 96
IT.MTCL.HGZ. 2021-11-27T02:17:42.66 0.3 undecidable manual S 116 4.0959 155 -0.1 75
IV.SEF1.HNN. 2021-11-27T02:17:42.19 0.1 undecidable manual P 358 15.1737 103 -0.1 98
IV.CESI.HNZ. 2021-11-27T02:17:42.97 0.3 undecidable manual S 262 4.0959 155 0.21 72
IV.FIU1.HNZ. 2021-11-27T02:17:42.85 0.1 undecidable manual P 355 19.869 95 -0.15 96
IV.FEMA.HNZ. 2021-11-27T02:17:41.64 0.1 undecidable manual P 124 9.3795 127 0.16 97
IV.FDMO.HHZ. 2021-11-27T02:17:41.57 0.1 undecidable manual P 75 11.1777 119 -0.14 98
IT.MTCL.HGZ. 2021-11-27T02:17:41.02 0.1 undecidable manual P 116 4.0959 155 0.05 100
IV.CESI.HNZ. 2021-11-27T02:17:41.05 0.1 undecidable manual P 262 4.0959 155 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.MTCL.HGE. ML:4.0 0.1315 0.04 AML other m 2021-11-27T02:17:42.98
IT.MTCL.HGN. ML:4.0 0.1485 0.42 AML other m 2021-11-27T02:17:43.25
IV.CESI.HHE. ML:2.4 0.0033599999999999997 0.32 AML other m 2021-11-27T02:17:43.28
IV.CESI.HNE. ML:2.3 0.002885 0.32 AML other m 2021-11-27T02:17:43.28
IV.CESI.HNN. ML:2.5 0.00483 0.26 AML other m 2021-11-27T02:17:43.34
IV.CESI.HHN. ML:2.5 0.00512 0.26 AML other m 2021-11-27T02:17:43.34
IV.FDMO.HHE. ML:2.3 0.00207 0.12 AML other m 2021-11-27T02:17:43.94
IV.FDMO.HHN. ML:2.3 0.0022800000000000003 0.16 AML other m 2021-11-27T02:17:44.01
IV.CSP1.EHE. ML:2.5 0.002115 0.46 AML other m 2021-11-27T02:17:47.02
IV.CSP1.EHN. ML:2.4 0.0017 0.4 AML other m 2021-11-27T02:17:47.02
IV.NRCA.HNE. ML:2.2 0.001073 0.18 AML other m 2021-11-27T02:17:47.09
IV.NRCA.HHE. ML:2.3 0.00117 0.18 AML other m 2021-11-27T02:17:47.09
IV.NRCA.HHN. ML:2.5 0.002025 0.12 AML other m 2021-11-27T02:17:47.12
IV.NRCA.HNN. ML:2.5 0.001915 0.12 AML other m 2021-11-27T02:17:47.12
IV.ASSB.HHE. ML:2.1 0.0007415000000000001 0.16 AML other m 2021-11-27T02:17:47.57
IV.ASSB.HHN. ML:2.1 0.0008300000000000001 0.5 AML other m 2021-11-27T02:17:47.67
IV.MC2.EHE. ML:2.1 0.000843 0.14 AML other m 2021-11-27T02:17:48.21
IV.SNTG.HHE. ML:1.7 0.00029 0.14 AML other m 2021-11-27T02:17:48.38
IV.SNTG.HHN. ML:1.9 0.0003795 0.12 AML other m 2021-11-27T02:17:48.38
IV.SNTG.HNE. ML:1.8 0.00033199999999999994 0.12 AML other m 2021-11-27T02:17:48.38
IV.SNTG.HNN. ML:1.8 0.00033499999999999996 0.34 AML other m 2021-11-27T02:17:48.39
IV.MC2.EHN. ML:2.1 0.0009059999999999999 0.62 AML other m 2021-11-27T02:17:49.20
IV.SMA1.EHN. ML:1.6 0.00010114999999999999 0.42 AML other m 2021-11-27T02:17:49.34
IV.MMO1.EHN. ML:2.1 0.0005200000000000001 0.38 AML other m 2021-11-27T02:17:49.72
IV.GUMA.HHE. ML:2.2 0.0007379999999999999 0.16 AML other m 2021-11-27T02:17:49.97
IV.ATCC.EHN. ML:1.9 0.00035999999999999997 1.24 AML other m 2021-11-27T02:17:50.66
IV.ATCC.HNE. ML:2.2 0.000785 0.3 AML other m 2021-11-27T02:17:50.04
IV.ATCC.EHE. ML:2.2 0.0007145000000000001 0.3 AML other m 2021-11-27T02:17:50.04
IV.GUMA.HHN. ML:2.0 0.0004305 1.84 AML other m 2021-11-27T02:17:50.06
IV.ATCC.HNN. ML:1.9 0.000324 0.92 AML other m 2021-11-27T02:17:50.11
IV.MMO1.EHE. ML:1.9 0.0003775 0.5 AML other m 2021-11-27T02:17:50.83
IV.EL6.EHE. ML:2.3 0.0008355 0.84 AML other m 2021-11-27T02:17:51.65
IV.EL6.EHN. ML:2.4 0.0008774999999999999 1.76 AML other m 2021-11-27T02:17:52.02
IV.CING.HHN. ML:1.9 0.000214 0.86 AML other m 2021-11-27T02:17:53.89
IV.CING.HHE. ML:1.8 0.0001715 0.46 AML other m 2021-11-27T02:17:53.81
IV.LNSS.HHE. ML:2.1 0.000365 0.3 AML other m 2021-11-27T02:17:53.76
IV.LNSS.HHN. ML:2.1 0.000372 0.2 AML other m 2021-11-27T02:17:53.82
IV.ARRO.EHE. ML:2.0 0.000237 0.22 AML other m 2021-11-27T02:17:55.54
IV.ARRO.EHN. ML:1.7 0.0001395 0.94 AML other m 2021-11-27T02:17:55.92
IV.SSFR.HHE. ML:1.8 0.0001835 0.42 AML other m 2021-11-27T02:17:56.24
IV.CESX.HHE. ML:1.7 0.00012475 1.52 AML other m 2021-11-27T02:17:57.83
IV.CESX.HHN. ML:1.8 0.00014350000000000002 0.72 AML other m 2021-11-27T02:17:57.42
IV.SSFR.HHN. ML:1.9 0.00020500000000000002 0.8 AML other m 2021-11-27T02:17:59.48
IV.SMA1.EHE. ML:1.7 0.00011624999999999999 0.6 AML other m 2021-11-27T02:17:59.24
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
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Waveforms Seismic signals in miniseed + resp format Download