Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 30-11-2020 and time 01:43:26 (UTC) in region 2 km W Visso (MC)

A magnitude ML 1.6 earthquake occured in region: 2 km W Visso (MC), on

  • 30-11-2020 01:43:26 (UTC)
  • 30-11-2020 02:43:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.938, 13.072 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
Visso MC 2 1107 1107
Ussita MC 6 444 1551
Preci PG 7 724 2275
Castelsantangelo sul Nera MC 8 281 2556
Monte Cavallo MC 9 145 2701
Fiordimonte MC 11 202 2903
Pieve Torina MC 12 1458 4361
Sellano PG 13 1079 5440
Fiastra MC 13 559 5999
Acquacanina MC 13 121 6120
Pievebovigliana MC 14 866 6986
Bolognola MC 14 142 7128
Norcia PG 16 4957 12085
Muccia MC 16 915 13000
Serravalle di Chienti MC 18 1070 14070
Cerreto di Spoleto PG 18 1075 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
100 Km W of Montesilvano (53738 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 1.6 2020-11-30
01:43:26		 42.9378 13.0722 11 2021-02-26
14:56:09		 Bollettino Sismico Italiano INGV 85156331
Reviewed
Rev100 		ML 1.7 2020-11-30
01:43:26		 42.9363 13.0708 10 2020-11-30
02:01:12		 Sala Sismica INGV-Roma 85098451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-30 01:43:26 ± 0.04
Latitude 42.9378 ± 0.0018
Longitude 13.0722 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85156331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 28
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.02878
Epicentral distance of station farthest from the epicenter (degree) 0.56747
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:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 85156331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-28 15:09:19

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 37
Type of magnitude ML
Reference to an origin 85098451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-30 02:01:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CING.HHE. 2020-11-30T01:43:42.40 0.3 undecidable manual S 12 0.4461 50 -0.12 69
IV.MOMA.HHZ. 2020-11-30T01:43:41.15 0.3 undecidable manual S 250 0.3912 50 0.26 68
IV.EL6.EHZ. 2020-11-30T01:43:40.89 0.3 undecidable manual S 3 0.3921 50 -0.01 71
IV.T1299.EHN. 2020-11-30T01:43:39.66 0.3 undecidable manual S 153 0.3399 50 0.28 68
IV.MTRA.HNE. 2020-11-30T01:43:37.87 0.3 undecidable manual S 127 0.2986 50 -0.28 69
IV.MURB.HHE. 2020-11-30T01:43:37.31 0.3 undecidable manual P 309 0.5153 50 0.3 65
IV.ARVD.HHZ. 2020-11-30T01:43:37.68 0.3 undecidable manual P 350 0.5675 50 -0.24 66
IT.FOPC.HGZ. 2020-11-30T01:43:37.57 0.3 undecidable manual S 277 0.2716 50 0.22 70
IV.CESX.HHE. 2020-11-30T01:43:36.17 0.3 undecidable manual P 227 0.4847 50 -0.33 65
IV.GUMA.HHZ. 2020-11-30T01:43:36.29 0.3 undecidable manual S 57 0.2293 50 0.21 71
IV.MDAR.HNZ. 2020-11-30T01:43:36.81 0.3 undecidable manual S 11 0.2599 50 -0.18 71
IV.TERO.HHZ. 2020-11-30T01:43:36.56 0.3 undecidable manual P 129 0.5009 50 -0.22 67
IV.MNTT.EHZ. 2020-11-30T01:43:35.80 0.3 undecidable manual P 72 0.402 50 0.71 59
IV.PF6.EHZ. 2020-11-30T01:43:35.46 0.3 undecidable manual S 24 0.2185 50 -0.32 69
IV.ARRO.EHE. 2020-11-30T01:43:35.33 0.3 undecidable manual P 212 0.4236 50 -0.12 69
IV.SEF1.HNZ. 2020-11-30T01:43:35.78 0.6 undecidable manual S 336 0.2275 50 -0.26 47
IV.CING.HHE. 2020-11-30T01:43:35.67 0.3 undecidable manual P 12 0.4461 50 -0.17 68
IT.GNU.HGE. 2020-11-30T01:43:35.02 0.1 undecidable manual P 250 0.3912 50 0.12 93
IV.MOMA.HHZ. 2020-11-30T01:43:34.60 0.3 undecidable manual P 250 0.3912 50 -0.3 67
IV.SMA1.EHZ. 2020-11-30T01:43:34.22 0.3 undecidable manual P 148 0.3624 50 -0.19 69
IV.MNTP.HNE. 2020-11-30T01:43:34.78 0.3 undecidable manual P 55 0.3516 50 0.56 63
IV.CSP1.EHZ. 2020-11-30T01:43:34.46 0.3 undecidable manual S 32 0.1817 118 -0.15 72
IV.MMO1.EHZ. 2020-11-30T01:43:34.64 0.3 undecidable manual S 102 0.1907 116 -0.27 70
IV.T1299.EHN. 2020-11-30T01:43:34.15 0.3 undecidable manual P 153 0.3399 50 0.12 70
IV.EL6.EHZ. 2020-11-30T01:43:34.76 0.3 undecidable manual P 3 0.3921 50 -0.15 69
IV.SNTG.HHZ. 2020-11-30T01:43:33.78 0.3 undecidable manual P 343 0.331 50 -0.09 71
IV.CESI.HHZ. 2020-11-30T01:43:33.19 0.3 undecidable manual S 299 0.1394 124 -0.03 75
IV.MF5.EHZ. 2020-11-30T01:43:33.46 0.3 undecidable manual P 80 0.2878 50 0.33 68
IV.MTRA.HNE. 2020-11-30T01:43:33.12 0.3 undecidable manual P 127 0.2986 50 -0.2 70
IV.LNSS.HHZ. 2020-11-30T01:43:33.72 0.3 undecidable manual P 184 0.3354 50 -0.23 69
IV.ASSB.HHZ. 2020-11-30T01:43:33.42 0.3 undecidable manual P 289 0.3202 50 -0.26 69
IV.SAP2.EHZ. 2020-11-30T01:43:33.35 0.6 undecidable manual P 56 0.2869 50 0.24 46
IV.NRCA.HHZ. 2020-11-30T01:43:32.08 0.3 undecidable manual S 164 0.1088 131 -0.19 72
IT.FOPC.HGZ. 2020-11-30T01:43:32.81 0.1 undecidable manual P 277 0.2716 50 -0.05 97
IV.GUMA.HHZ. 2020-11-30T01:43:32.32 0.1 undecidable manual P 57 0.2293 50 0.19 94
IV.SEF1.HNZ. 2020-11-30T01:43:32.46 0.1 undecidable manual P 336 0.2275 50 0.36 91
IV.MDAR.HNZ. 2020-11-30T01:43:32.67 0.3 undecidable manual P 11 0.2599 50 0.02 73
IV.MMO1.EHZ. 2020-11-30T01:43:31.34 0.1 positive manual P 102 0.1907 116 -0.1 97
IT.MTCL.HGZ. 2020-11-30T01:43:31.26 0.3 undecidable manual S 316 0.0773 141 -0.17 73
IV.PF6.EHZ. 2020-11-30T01:43:31.73 0.1 undecidable manual P 24 0.2185 50 -0.22 94
IV.MC2.EHZ. 2020-11-30T01:43:31.79 0.3 undecidable manual S 107 0.0899 137 0.05 75
IV.FDMO.HHZ. 2020-11-30T01:43:31.92 0.3 undecidable manual S 6 0.0989 134 -0.08 74
IV.CSP1.EHZ. 2020-11-30T01:43:31.25 0.3 positive manual P 32 0.1817 118 -0.03 74
IV.FEMA.HNZ. 2020-11-30T01:43:30.60 0.3 undecidable manual S 326 0.0288 163 0.06 76
IV.CESI.HHZ. 2020-11-30T01:43:30.54 0.1 positive manual P 299 0.1394 124 0.07 99
IV.FDMO.HHZ. 2020-11-30T01:43:29.86 0.1 undecidable manual P 6 0.0989 134 0.09 99
IV.FEMA.HNZ. 2020-11-30T01:43:29.15 0.1 undecidable manual P 326 0.0288 163 0.23 97
IV.NRCA.HHZ. 2020-11-30T01:43:29.95 0.1 positive manual P 164 0.1088 131 0.03 100
IT.MTCL.HGZ. 2020-11-30T01:43:29.50 0.1 undecidable manual P 316 0.0773 141 0.06 100
IV.MC2.EHZ. 2020-11-30T01:43:29.82 0.1 undecidable manual P 107 0.0899 137 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.2 0.002503718 0.2 AML other m 2020-11-30T01:43:30.90
IV.FEMA.HNN. ML:1.9 0.0013774279 0.1104 AML other m 2020-11-30T01:43:30.93
IV.NRCA.HNN. ML:1.7 0.00062906845 0.16 AML other m 2020-11-30T01:43:32.13
IV.NRCA.HHN. ML:1.7 0.00063915745 0.14 AML other m 2020-11-30T01:43:32.13
IV.FDMO.HHE. ML:1.8 0.00074637255 0.16 AML other m 2020-11-30T01:43:32.10
IV.NRCA.HHE. ML:1.8 0.0006614356 0.12 AML other m 2020-11-30T01:43:32.23
IV.FDMO.HHN. ML:1.5 0.0004025885 0.12 AML other m 2020-11-30T01:43:32.43
IV.NRCA.HNE. ML:1.7 0.00061361825 0.12 AML other m 2020-11-30T01:43:33.11
IV.CESI.HHN. ML:2.1 0.001230296 0.22 AML other m 2020-11-30T01:43:33.47
IV.CESI.HNN. ML:2.1 0.0012583505 0.24 AML other m 2020-11-30T01:43:33.47
IV.CESI.HHE. ML:1.7 0.0004556362475 0.16 AML other m 2020-11-30T01:43:33.59
IV.CESI.HNE. ML:1.6 0.000380385635 0.1496 AML other m 2020-11-30T01:43:33.59
IV.CSP1.EHN. ML:2.1 0.0008582278 0.26 AML other m 2020-11-30T01:43:34.83
IV.CSP1.EHE. ML:1.9 0.0006022015 1.9 AML other m 2020-11-30T01:43:35.00
IV.GUMA.HNN. ML:1.9 0.000424253655 0.1304 AML other m 2020-11-30T01:43:36.76
IV.GUMA.HHN. ML:1.9 0.00050838225 0.16 AML other m 2020-11-30T01:43:36.77
IV.GUMA.HNE. ML:1.8 0.00034729545 0.14 AML other m 2020-11-30T01:43:37.01
IV.GUMA.HHE. ML:1.9 0.00042966755 0.22 AML other m 2020-11-30T01:43:37.39
IV.ASSB.HHN. ML:1.7 0.00020675325 0.16 AML other m 2020-11-30T01:43:38.85
IV.ASSB.HHE. ML:1.6 0.000139589 0.1 AML other m 2020-11-30T01:43:38.84
IV.MF5.EHE. ML:1.8 0.00026244725 0.2 AML other m 2020-11-30T01:43:39.30
IV.SAP2.EHN. ML:2.2 0.0007635122 0.18 AML other m 2020-11-30T01:43:39.39
IV.MF5.EHN. ML:1.6 0.00017105535 0.2 AML other m 2020-11-30T01:43:39.32
IV.SAP2.EHE. ML:1.6 0.00018053565 0.2 AML other m 2020-11-30T01:43:39.73
IV.LNSS.HHN. ML:1.6 0.0001403906 0.14 AML other m 2020-11-30T01:43:40.59
IV.SMA1.EHN. ML:1 3.37125435E-5 0.14 AML other m 2020-11-30T01:43:41.45
IV.SNTG.HHE. ML:1 3.597699595E-5 0.12 AML other m 2020-11-30T01:43:41.54
IV.EL6.EHE. ML:1.5 9.0596318E-5 0.26 AML other m 2020-11-30T01:43:41.47
IV.LNSS.HHE. ML:1.4 9.471011E-5 0.12 AML other m 2020-11-30T01:43:41.86
IV.SNTG.HHN. ML:0.8 2.3734075E-5 0.14 AML other m 2020-11-30T01:43:41.93
IV.EL6.EHN. ML:1.7 0.00014634261 1.82 AML other m 2020-11-30T01:43:41.99
IV.SMA1.EHE. ML:1.1 4.5282615E-5 0.12 AML other m 2020-11-30T01:43:42.24
IV.MOMA.HHN. ML:1.4 7.959748E-5 0.16 AML other m 2020-11-30T01:43:43.03
IV.MOMA.HHE. ML:1.4 7.145729E-5 0.18 AML other m 2020-11-30T01:43:43.57
IV.MOMA.HNE. ML:0.9 2.4740655E-5 0.08 AML other m 2020-11-30T01:43:43.58
IV.TERO.HHE. ML:1.1 3.2239935E-5 0.16 AML other m 2020-11-30T01:43:45.11
IV.TERO.HNN. ML:1.3 5.045121E-5 0.12 AML other m 2020-11-30T01:43:45.13
IV.TERO.HHN. ML:1.1 3.0793425E-5 0.12 AML other m 2020-11-30T01:43:46.16
IV.TERO.HNE. ML:1.3 4.6914772E-5 0.1304 AML other m 2020-11-30T01:43:46.29
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