Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 19-11-2020 and time 10:17:48 (UTC) in region 4 km W Visso (MC)

A magnitude ML 1.8 earthquake occured in region: 4 km W Visso (MC), on

  • 19-11-2020 10:17:48 (UTC)
  • 19-11-2020 11:17:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9290, 13.0440 at 7 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
Visso MC 4 1107 1107
Preci PG 6 724 1831
Ussita MC 8 444 2275
Monte Cavallo MC 8 145 2420
Castelsantangelo sul Nera MC 10 281 2701
Sellano PG 10 1079 3780
Fiordimonte MC 13 202 3982
Pieve Torina MC 13 1458 5440
Fiastra MC 15 559 5999
Pievebovigliana MC 15 866 6865
Norcia PG 16 4957 11822
Acquacanina MC 16 121 11943
Cerreto di Spoleto PG 16 1075 13018
Bolognola MC 17 142 13160
Muccia MC 17 915 14075
Serravalle di Chienti MC 18 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 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 1.8 2020-11-19
10:17:48		 42.9288 13.044 7 2021-02-26
14:56:18		 Bollettino Sismico Italiano INGV 86934491
Reviewed
Rev100 		ML 1.9 2020-11-19
10:17:48		 42.9387 13.0377 7 2020-11-19
10:22:52		 Sala Sismica INGV-Roma 84845331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-19 10:17:48 ± 0.05
Latitude 42.9288 ± 0.0027
Longitude 13.0440 ± 0.0037
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86934491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 258
Semi-minor axis of confidence ellipse (meter) 212
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 275
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.72935
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 84845331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-19 10:22:52

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 47
Type of magnitude ML
Reference to an origin 86934491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-08 11:56:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-11-19T10:18:09.65 0.3 undecidable manual S 353 63.6918 50 0.51 62
IV.TERO.HHZ. 2020-11-19T10:18:07.12 0.3 undecidable manual S 126 56.8986 50 -0.2 67
IV.CESX.HHZ. 2020-11-19T10:18:06.03 0.3 undecidable manual S 226 51.5151 50 0.14 68
IV.CAMP.HHZ. 2020-11-19T10:18:05.92 0.3 undecidable manual S 146 52.8027 50 -0.31 66
IV.ARRO.EHZ. 2020-11-19T10:18:04.11 0.3 undecidable manual S 210 44.9217 50 -0.03 71
IV.MOMA.HHZ. 2020-11-19T10:18:03.62 0.3 undecidable manual S 250 40.9257 50 0.54 63
IV.EL6.EHZ. 2020-11-19T10:18:03.79 0.3 undecidable manual S 6 44.622 50 -0.28 67
IV.MPAG.EHZ. 2020-11-19T10:18:03.97 0.6 undecidable manual P 344 80.9523 50 0.74 36
IV.ATCC.EHZ. 2020-11-19T10:18:03.70 0.3 undecidable manual S 311 43.3233 50 -0.02 71
IV.SNTG.HHZ. 2020-11-19T10:18:02.19 0.3 undecidable manual S 347 37.1295 101 0.23 69
IV.SMA1.EHZ. 2020-11-19T10:18:02.77 0.3 undecidable manual S 144 40.7259 50 -0.25 68
IV.LNSS.HHZ. 2020-11-19T10:18:01.44 0.3 undecidable manual S 180 36.1416 101 -0.2 69
IV.FRON.EHZ. 2020-11-19T10:18:01.50 0.6 undecidable manual P 339 70.1742 50 -0.07 45
IV.MF5.EHZ. 2020-11-19T10:18:01.86 0.3 undecidable manual S 79 34.3434 102 0.83 57
IV.MTRA.EHZ. 2020-11-19T10:18:00.78 0.3 undecidable manual S 124 34.4433 102 -0.27 69
IV.ASSB.HHZ. 2020-11-19T10:18:00.55 0.3 undecidable manual S 292 33.744 102 -0.25 69
IV.ARVD.HHZ. 2020-11-19T10:18:00.85 0.6 undecidable manual P 353 63.6918 50 0.29 43
IV.GUMA.HHZ. 2020-11-19T10:17:59.35 0.3 undecidable manual S 58 27.9498 105 0.51 66
IV.GAVE.EHZ. 2020-11-19T10:17:59.60 0.3 undecidable manual S 205 28.9488 104 0.41 67
IV.TERO.HHZ. 2020-11-19T10:17:59.01 0.6 undecidable manual P 126 56.8986 50 -0.5 42
IV.OFFI.HHZ. 2020-11-19T10:17:59.49 0.6 undecidable manual P 89 52.1034 50 0.71 39
IV.CAMP.HHZ. 2020-11-19T10:17:58.48 0.6 undecidable manual P 146 52.8027 50 -0.4 43
IV.CESX.HHZ. 2020-11-19T10:17:58.49 1.0 undecidable manual P 226 51.5151 50 -0.19 23
IV.MNTT.EHZ. 2020-11-19T10:17:58.09 0.6 undecidable manual P 72 47.1195 50 0.08 46
IV.PF6.EHZ. 2020-11-19T10:17:58.04 0.3 undecidable manual S 28 26.1516 105 -0.22 70
IV.EL6.EHZ. 2020-11-19T10:17:57.09 0.3 undecidable manual P 6 44.622 50 -0.54 63
IV.ATCC.EHZ. 2020-11-19T10:17:57.25 0.3 undecidable manual P 311 43.3233 50 -0.18 69
IV.MOMA.HHZ. 2020-11-19T10:17:57.39 0.3 undecidable manual P 250 40.9257 50 0.33 67
IV.ARRO.EHZ. 2020-11-19T10:17:57.77 1.0 undecidable manual P 210 44.9217 50 0.1 23
IV.MML1.HNZ. 2020-11-19T10:17:57.08 0.3 undecidable manual S 344 21.2676 109 0.44 68
IV.CSP1.EHZ. 2020-11-19T10:17:56.90 0.3 undecidable manual S 36 22.2555 108 -0.07 73
IV.SMA1.EHZ. 2020-11-19T10:17:56.66 0.3 undecidable manual P 144 40.7259 50 -0.36 66
IV.MF5.EHZ. 2020-11-19T10:17:55.97 0.3 undecidable manual P 79 34.3434 102 0.09 71
IV.MTRA.EHZ. 2020-11-19T10:17:55.59 0.3 undecidable manual P 124 34.4433 102 -0.3 68
IV.SNTG.HHZ. 2020-11-19T10:17:55.73 0.6 undecidable manual P 347 37.1295 101 -0.68 40
IV.LNSS.HHZ. 2020-11-19T10:17:55.93 0.1 undecidable manual P 180 36.1416 101 -0.3 91
IV.ASSB.HHZ. 2020-11-19T10:17:55.52 0.3 undecidable manual P 292 33.744 102 -0.22 69
IV.SAP2.EHZ. 2020-11-19T10:17:55.83 0.6 undecidable manual P 57 34.3434 102 -0.03 48
IV.NRCA.HHZ. 2020-11-19T10:17:54.07 0.3 undecidable manual S 152 11.9769 121 0.36 70
IV.PF6.EHZ. 2020-11-19T10:17:54.07 0.3 undecidable manual P 28 26.1516 105 -0.21 70
IV.CESI.HHZ. 2020-11-19T10:17:54.48 0.3 undecidable manual S 307 14.0748 117 0.14 73
IV.GUMA.HHZ. 2020-11-19T10:17:54.67 0.1 positive manual P 58 27.9498 105 0.06 97
IV.GAVE.EHZ. 2020-11-19T10:17:54.99 0.3 undecidable manual P 205 28.9488 104 0.17 71
IV.MC2.EHZ. 2020-11-19T10:17:54.18 0.3 undecidable manual S 99 11.9769 121 0.5 68
IV.MML1.HNZ. 2020-11-19T10:17:53.28 0.3 undecidable manual P 344 21.2676 109 -0.06 73
IV.FDMO.HHZ. 2020-11-19T10:17:53.69 0.3 undecidable manual S 16 12.4764 120 -0.14 73
IV.CSP1.EHZ. 2020-11-19T10:17:53.40 0.1 positive manual P 36 22.2555 108 -0.13 96
IT.MTCL.HGZ. 2020-11-19T10:17:52.47 0.6 undecidable manual S 333 8.0808 132 -0.13 49
IV.CESI.HHZ. 2020-11-19T10:17:52.24 0.1 positive manual P 307 14.0748 117 0.23 96
IV.MC2.EHZ. 2020-11-19T10:17:51.82 0.1 positive manual P 99 11.9769 121 0.19 97
IV.NRCA.HHZ. 2020-11-19T10:17:51.89 0.1 negative manual P 152 11.9769 121 0.24 96
IV.FDMO.HHZ. 2020-11-19T10:17:51.66 0.1 positive manual P 16 12.4764 120 -0.06 99
IV.FEMA.HNZ. 2020-11-19T10:17:50.84 0.3 undecidable manual S 7 3.6963 153 -0.82 61
IV.FEMA.HNZ. 2020-11-19T10:17:50.23 0.1 negative manual P 7 3.6963 153 -0.23 97
IT.MTCL.HGZ. 2020-11-19T10:17:50.95 0.1 undecidable manual P 333 8.0808 132 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.8 0.000855 0.26 AML other m 2020-11-19T10:17:53.89
IV.FDMO.HHN. ML:1.8 0.0008135 0.2 AML other m 2020-11-19T10:17:54.16
IV.NRCA.HHN. ML:2.2 0.0022346425 0.1408 AML other m 2020-11-19T10:17:54.33
IV.NRCA.HNN. ML:2.2 0.0020339125 0.1024 AML other m 2020-11-19T10:17:54.68
IV.NRCA.HHE. ML:2.3 0.0028049999999999998 1.88 AML other m 2020-11-19T10:17:54.99
IV.NRCA.HNE. ML:2.3 0.0025828875 0.128 AML other m 2020-11-19T10:17:54.99
IV.CESI.HHN. ML:1.9 0.0008025922 0.2368 AML other m 2020-11-19T10:17:54.91
IV.CESI.HHE. ML:1.8 0.00070122795 0.2816 AML other m 2020-11-19T10:17:56.54
IV.CSP1.EHN. ML:2.0 0.0007704659499999999 0.16 AML other m 2020-11-19T10:17:57.51
IV.CSP1.EHE. ML:2.1 0.0008548017999999999 0.2176 AML other m 2020-11-19T10:17:57.95
IV.GAVE.HNE. ML:2.1 0.0006160088 0.192 AML other m 2020-11-19T10:17:59.93
IV.GAVE.EHE. ML:2.1 0.0005979881000000001 0.1984 AML other m 2020-11-19T10:17:59.93
IV.ASSB.HHE. ML:1.8 0.0002557306 0.32 AML other m 2020-11-19T10:18:00.90
IV.GAVE.HNN. ML:1.5 0.00015240396949999999 0.128 AML other m 2020-11-19T10:18:00.90
IV.GAVE.EHN. ML:2.0 0.00048038454999999996 0.1984 AML other m 2020-11-19T10:18:01.63
IV.MTRA.EHE. ML:2.0 0.00039114084999999996 0.2176 AML other m 2020-11-19T10:18:01.54
IV.LNSS.HHN. ML:1.8 0.0002325471 0.3008 AML other m 2020-11-19T10:18:02.23
IV.MF5.EHE. ML:1.8 0.00025205075 0.224 AML other m 2020-11-19T10:18:02.44
IV.MF5.EHN. ML:1.6 0.0001688287145 0.16 AML other m 2020-11-19T10:18:02.05
IV.LNSS.HHE. ML:2.0 0.0003595 0.14 AML other m 2020-11-19T10:18:02.10
IV.MTRA.EHN. ML:2.1 0.0005344999999999999 0.42 AML other m 2020-11-19T10:18:02.33
IV.SAP2.EHE. ML:1.8 0.00023899999999999998 0.74 AML other m 2020-11-19T10:18:03.24
IV.SNTG.HHE. ML:1.4 0.00010240000000000001 0.5 AML other m 2020-11-19T10:18:03.62
IV.SAP2.EHN. ML:2.6 0.001725 0.16 AML other m 2020-11-19T10:18:03.41
IV.ASSB.HHN. ML:1.9 0.000343 0.24 AML other m 2020-11-19T10:18:03.55
IV.SNTG.HHN. ML:1.4 0.00009145 0.12 AML other m 2020-11-19T10:18:03.64
IV.EL6.EHN. ML:1.9 0.000249 1.34 AML other m 2020-11-19T10:18:05.12
IV.MOMA.HHE. ML:1.6 0.00014150000000000002 0.16 AML other m 2020-11-19T10:18:05.49
IV.MOMA.HHN. ML:1.4 0.00009478074000000001 0.32 AML other m 2020-11-19T10:18:05.04
IV.SMA1.EHN. ML:1.4 0.00009672875 0.1216 AML other m 2020-11-19T10:18:04.30
IV.ATCC.EHN. ML:1.7 0.00017299999999999998 0.32 AML other m 2020-11-19T10:18:05.58
IV.EL6.EHE. ML:2.0 0.0002695 0.2 AML other m 2020-11-19T10:18:05.92
IV.MNTT.EHE. ML:1.9 0.00021457338499999997 0.2624 AML other m 2020-11-19T10:18:07.15
IV.ATCC.EHE. ML:1.6 0.00014800000000000002 1.42 AML other m 2020-11-19T10:18:07.04
IV.CESX.HHN. ML:1.7 0.000137005925 0.3392 AML other m 2020-11-19T10:18:07.56
IV.SMA1.EHE. ML:1.3 0.000066760345 0.1344 AML other m 2020-11-19T10:18:04.09
IV.TERO.HHN. ML:1.7 0.000120627945 0.1408 AML other m 2020-11-19T10:18:07.61
IV.CESX.HHE. ML:1.8 0.00014549999999999999 0.42 AML other m 2020-11-19T10:18:07.76
IV.TERO.HHE. ML:1.8 0.000142 0.18 AML other m 2020-11-19T10:18:07.58
IV.MNTT.EHN. ML:2.0 0.0002611745 0.1984 AML other m 2020-11-19T10:18:10.45
IV.MTRA.HNN. ML:2.0 0.0004022887 0.192 AML other m 2020-11-19T10:18:02.63
IV.MTRA.HNE. ML:1.9 0.000366024 0.2112 AML other m 2020-11-19T10:18:01.53
IV.MOMA.HNE. ML:1.7 0.00018588485 0.3584 AML other m 2020-11-19T10:18:05.67
IV.ARVD.HHN. ML:1.2 0.000028137313 0.1216 AML other m 2020-11-19T10:18:11.27
IV.ARVD.HHE. ML:1.3 0.000035948969999999995 0.1152 AML other m 2020-11-19T10:18:10.63
IV.MPAG.EHE. ML:1.3 0.000024345119999999996 0.2368 AML other m 2020-11-19T10:18:16.62
IV.MPAG.EHN. ML:1.3 0.000028520915 0.3584 AML other m 2020-11-19T10:18:19.08
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