Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 18-10-2021 and time 14:56:38 (Italy) in region 3 km E Visso (MC)

A magnitude ML 2.0 earthquake occured in region: 3 km E Visso (MC), on

  • 18-10-2021 12:56:38 (UTC)
  • 18-10-2021 14:56:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9250, 13.1190 at 8 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 3 1107 1107
Ussita MC 3 444 1551
Castelsantangelo sul Nera MC 4 281 1832
Preci PG 8 724 2556
Bolognola MC 12 142 2698
Monte Cavallo MC 12 145 2843
Acquacanina MC 13 121 2964
Fiordimonte MC 13 202 3166
Fiastra MC 13 559 3725
Pieve Torina MC 14 1458 5183
Norcia PG 15 4957 10140
Pievebovigliana MC 16 866 11006
Sellano PG 16 1079 12085
Montemonaco AP 17 604 12689
Montefortino FM 18 1178 13867
Muccia MC 19 915 14782
Sarnano MC 19 3264 18046
Montegallo AP 20 523 18569

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
56 Km NE of Terni (111501 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
96 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 2.0 2021-10-18
12:56:38		 42.9253 13.1193 9 2022-03-30
13:04:13		 Bollettino Sismico Italiano INGV 97017971
Reviewed
Rev100 		ML 2.3 2021-10-18
12:56:38		 42.9272 13.1237 9 2021-10-18
13:10:00		 Sala Sismica INGV-Roma 96726711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-18 12:56:38 ± 0.04
Latitude 42.9253 ± 0.0018
Longitude 13.1193 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97017971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 244
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 72
Number of defining phases 70
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.74374
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 96726711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-18 13:10:00

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 51
Type of magnitude ML
Reference to an origin 97017971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-16 14:21:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2021-10-18T12:57:22.29 3.0 undecidable manual S 0.81 0
IT.PLTA.HNZ. 2021-10-18T12:57:05.87 3.0 undecidable manual Pn -0.77 0
IV.PIEI.HHZ. 2021-10-18T12:57:04.65 0.6 undecidable manual S 325 82.5507 50 0.9 34
IV.ARVD.HHZ. 2021-10-18T12:56:59.90 0.6 undecidable manual S 347 65.0904 50 0.8 36
IV.MURB.HHZ. 2021-10-18T12:56:59.07 0.6 undecidable manual S 308 60.9945 50 1.07 32
IV.TERO.HHZ. 2021-10-18T12:56:55.46 0.6 undecidable manual S 130 51.8037 50 -0.08 46
IV.ATCC.EHZ. 2021-10-18T12:56:55.03 0.6 undecidable manual S 307 48.4182 50 0.41 43
IV.FOSV.EHZ. 2021-10-18T12:56:55.10 0.6 undecidable manual S 325 50.2164 50 -0.01 47
IV.CING.HHZ. 2021-10-18T12:56:55.24 0.6 undecidable manual S 7 50.3163 50 0.1 46
IV.ARRO.EHZ. 2021-10-18T12:56:54.40 0.6 undecidable manual S 217 48.0186 50 -0.13 46
IV.RM33.EHZ. 2021-10-18T12:56:54.38 0.6 undecidable manual S 170 46.8198 50 0.16 46
IV.MOMA.HHZ. 2021-10-18T12:56:54.96 0.6 undecidable manual S 253 46.62 50 0.8 38
IV.EL6.EHZ. 2021-10-18T12:56:53.54 0.6 undecidable manual S 358 44.8218 50 -0.14 46
IV.SNTG.HHZ. 2021-10-18T12:56:52.10 0.6 undecidable manual S 338 39.3273 50 -0.11 47
IV.ASSB.HHZ. 2021-10-18T12:56:52.13 0.6 undecidable manual S 289 39.5271 50 -0.15 46
IV.PIEI.HHZ. 2021-10-18T12:56:52.90 0.3 undecidable manual P 325 82.5507 50 -0.25 63
IV.SMA1.EHZ. 2021-10-18T12:56:51.36 0.6 undecidable manual S 152 37.1295 50 -0.27 45
IT.FOPC.HGN. 2021-10-18T12:56:51.14 0.3 undecidable manual S 278 34.1436 50 0.31 68
IV.ARVD.HHZ. 2021-10-18T12:56:51.19 0.3 undecidable manual P 347 65.0904 50 0.73 56
IV.LNSS.HHZ. 2021-10-18T12:56:51.15 0.6 undecidable manual S 190 36.3414 50 -0.27 46
IV.T1299.HNN. 2021-10-18T12:56:51.52 0.3 undecidable manual S 158 34.9428 50 0.49 65
IV.SAP2.EHZ. 2021-10-18T12:56:50.02 0.6 undecidable manual S 50 29.5482 106 0.66 41
IV.GAVE.EHZ. 2021-10-18T12:56:50.00 0.6 undecidable manual S 215 31.746 105 -0.06 48
IV.MF5.EHZ. 2021-10-18T12:56:49.49 0.6 undecidable manual S 76 28.4493 107 0.5 44
IV.MURB.HHZ. 2021-10-18T12:56:49.85 0.1 undecidable manual P 308 60.9945 50 0.02 92
IV.FOSV.EHZ. 2021-10-18T12:56:48.05 0.3 undecidable manual P 325 50.2164 50 -0.12 69
IV.SEF1.HNZ. 2021-10-18T12:56:48.50 0.3 undecidable manual S 331 28.2495 107 -0.4 67
IV.TERO.HHZ. 2021-10-18T12:56:48.14 0.1 undecidable manual P 130 51.8037 50 -0.27 88
IV.MTRA.EHZ. 2021-10-18T12:56:48.90 0.6 undecidable manual S 130 29.3484 106 -0.36 45
IV.MDAR.HNZ. 2021-10-18T12:56:48.82 0.3 undecidable manual S 4 29.748 106 -0.57 64
IV.CING.HHZ. 2021-10-18T12:56:47.75 0.3 undecidable manual P 7 50.3163 50 -0.43 64
IV.MOMA.HHZ. 2021-10-18T12:56:47.49 0.1 undecidable manual P 253 46.62 50 -0.13 92
IV.MNTT.EHZ. 2021-10-18T12:56:47.26 0.3 undecidable manual P 68 41.5251 50 0.44 65
IV.ARRO.EHZ. 2021-10-18T12:56:47.71 0.1 undecidable manual P 217 48.0186 50 -0.12 92
IV.GUMA.HHZ. 2021-10-18T12:56:47.60 0.1 undecidable manual S 49 23.1546 110 0.35 92
IV.RM33.EHZ. 2021-10-18T12:56:47.46 0.3 undecidable manual P 170 46.8198 50 -0.19 68
IV.ATCC.EHZ. 2021-10-18T12:56:47.82 0.1 undecidable manual P 307 48.4182 50 -0.06 93
IV.MML1.EHZ. 2021-10-18T12:56:47.40 0.6 undecidable manual S 330 24.0537 109 -0.13 48
IV.PF6.EHZ. 2021-10-18T12:56:47.14 0.6 undecidable manual S 14 24.3534 109 -0.48 44
IV.ASSB.HHZ. 2021-10-18T12:56:46.22 0.1 positive manual P 289 39.5271 50 -0.31 90
IV.EL6.EHZ. 2021-10-18T12:56:46.85 0.1 undecidable manual P 358 44.8218 50 -0.49 86
IV.MNTP.HNZ. 2021-10-18T12:56:46.32 0.3 undecidable manual P 50 36.8298 50 0.21 69
IV.CESI.HHZ. 2021-10-18T12:56:46.29 0.6 undecidable manual S 297 19.5693 113 0.22 47
IV.SNTG.HHZ. 2021-10-18T12:56:46.34 0.1 undecidable manual P 338 39.3273 50 -0.15 93
IV.MMO1.EHZ. 2021-10-18T12:56:45.22 0.1 undecidable manual S 100 17.0718 116 -0.08 98
IV.LNSS.HHZ. 2021-10-18T12:56:45.83 0.1 undecidable manual P 190 36.3414 50 -0.2 92
IV.T1299.HNN. 2021-10-18T12:56:45.61 0.3 undecidable manual P 158 34.9428 50 -0.2 69
IV.CSP1.EHZ. 2021-10-18T12:56:45.88 0.6 undecidable manual S 21 19.7691 113 -0.24 47
IV.GAVE.EHZ. 2021-10-18T12:56:45.19 0.1 positive manual P 215 31.746 105 -0.06 96
IV.SMA1.EHZ. 2021-10-18T12:56:45.80 0.3 undecidable manual P 152 37.1295 50 -0.35 67
IV.SAP2.EHZ. 2021-10-18T12:56:45.09 0.3 undecidable manual P 50 29.5482 106 0.25 69
IT.FOPC.HGN. 2021-10-18T12:56:45.52 0.3 undecidable manual P 278 34.1436 50 -0.17 70
IV.MDAR.HNZ. 2021-10-18T12:56:44.70 0.3 undecidable manual P 4 29.748 106 -0.17 71
IV.MTRA.EHZ. 2021-10-18T12:56:44.53 0.1 undecidable manual P 130 29.3484 106 -0.26 92
IV.SEF1.HNZ. 2021-10-18T12:56:44.45 0.3 undecidable manual P 331 28.2495 107 -0.13 71
IV.MF5.EHZ. 2021-10-18T12:56:44.78 0.1 positive manual P 76 28.4493 107 0.15 95
IV.CESI.HHZ. 2021-10-18T12:56:43.10 0.1 positive manual P 297 19.5693 113 0.16 96
IV.PF6.EHZ. 2021-10-18T12:56:43.51 0.1 undecidable manual P 14 24.3534 109 -0.33 92
IV.NRCA.HNZ. 2021-10-18T12:56:43.41 0.1 undecidable manual S 182 10.1787 130 0.13 98
IV.MML1.EHZ. 2021-10-18T12:56:43.77 0.1 undecidable manual P 330 24.0537 109 -0.02 98
IT.MTCL.HGZ. 2021-10-18T12:56:43.84 0.6 undecidable manual S 308 12.3765 124 -0.03 50
IV.GUMA.HHZ. 2021-10-18T12:56:43.68 0.1 undecidable manual P 49 23.1546 110 0.05 97
IV.FDMO.HHZ. 2021-10-18T12:56:43.65 0.6 undecidable manual S 348 12.5763 124 -0.29 47
IV.FEMA.HNZ. 2021-10-18T12:56:42.56 0.6 undecidable manual S 306 6.993 141 0.08 50
IV.MMO1.EHZ. 2021-10-18T12:56:42.54 0.1 positive manual P 100 17.0718 116 0.04 99
IV.MC2.EHZ. 2021-10-18T12:56:42.34 0.1 undecidable manual S 105 5.8941 145 0.09 100
IV.CSP1.EHZ. 2021-10-18T12:56:42.90 0.1 positive manual P 21 19.7691 113 -0.08 98
IV.FDMO.HHZ. 2021-10-18T12:56:41.73 0.1 negative manual P 348 12.5763 124 0.01 100
IV.FEMA.HNZ. 2021-10-18T12:56:41.16 0.1 undecidable manual P 306 6.993 141 0.29 95
IT.MTCL.HGZ. 2021-10-18T12:56:41.81 0.1 undecidable manual P 308 12.3765 124 0.13 98
IV.NRCA.HNZ. 2021-10-18T12:56:41.63 0.1 positive manual P 182 10.1787 130 0.3 95
IV.MC2.EHZ. 2021-10-18T12:56:40.97 0.1 undecidable manual P 105 5.8941 145 0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.7 0.0080927875 0.1856 AML other m 2021-10-18T12:56:42.86
IV.FEMA.HNN. ML:2.4 0.004784619 0.1088 AML other m 2021-10-18T12:56:42.88
IV.NRCA.HHN. ML:2.1 0.0016749905 0.16 AML other m 2021-10-18T12:56:43.55
IV.NRCA.HNN. ML:2.0 0.0014907266 0.1408 AML other m 2021-10-18T12:56:43.55
IV.NRCA.HNE. ML:2.5 0.004044655 0.1408 AML other m 2021-10-18T12:56:43.57
IV.NRCA.HHE. ML:2.5 0.004365 0.14 AML other m 2021-10-18T12:56:43.57
IV.FDMO.HHN. ML:1.9 0.001018827 0.3968 AML other m 2021-10-18T12:56:43.98
IV.FDMO.HHE. ML:1.9 0.00101083435 0.1792 AML other m 2021-10-18T12:56:43.93
IV.CSP1.EHN. ML:2.5 0.0025678169999999996 0.16 AML other m 2021-10-18T12:56:46.11
IV.CSP1.EHE. ML:2.5 0.0026793955 0.5568 AML other m 2021-10-18T12:56:46.55
IV.CESI.HHE. ML:2.2 0.0012476744 0.4416 AML other m 2021-10-18T12:56:46.70
IV.CESI.HNE. ML:2.1 0.0010311358500000002 0.416 AML other m 2021-10-18T12:56:46.70
IV.CESI.HHN. ML:2.5 0.002685 0.14 AML other m 2021-10-18T12:56:46.58
IV.CESI.HNN. ML:2.5 0.00254 0.14 AML other m 2021-10-18T12:56:46.59
IV.MML1.HNE. ML:1.6 0.000278786 0.1408 AML other m 2021-10-18T12:56:47.51
IV.MML1.EHE. ML:1.7 0.00029081985 0.1408 AML other m 2021-10-18T12:56:47.52
IV.MML1.EHN. ML:1.7 0.00031562440000000005 0.4032 AML other m 2021-10-18T12:56:47.57
IV.MML1.HNN. ML:1.7 0.00028387415 0.2176 AML other m 2021-10-18T12:56:47.88
IV.MTRA.EHN. ML:1.9 0.0004390220499999999 0.4032 AML other m 2021-10-18T12:56:49.19
IV.MTRA.HNN. ML:2.0 0.0004879496 0.416 AML other m 2021-10-18T12:56:49.20
IV.MTRA.HNE. ML:2.0 0.0005716709 0.5184 AML other m 2021-10-18T12:56:49.24
IV.MTRA.EHE. ML:2.0 0.00054921305 0.4992 AML other m 2021-10-18T12:56:49.24
IV.MF5.EHE. ML:1.9 0.0004232874 0.3392 AML other m 2021-10-18T12:56:49.89
IV.GAVE.EHN. ML:2.3 0.0010300426 0.16 AML other m 2021-10-18T12:56:50.29
IV.GAVE.HNN. ML:1.8 0.0003257893 0.1472 AML other m 2021-10-18T12:56:50.29
IV.GAVE.HNE. ML:2.4 0.00106324755 0.1216 AML other m 2021-10-18T12:56:50.36
IV.GAVE.EHE. ML:2.4 0.0011909165000000002 0.1024 AML other m 2021-10-18T12:56:50.36
IV.LNSS.HHN. ML:2.3 0.0007681515999999999 0.2816 AML other m 2021-10-18T12:56:51.57
IV.LNSS.HHE. ML:2.0 0.00034822255 0.1024 AML other m 2021-10-18T12:56:51.78
IV.LNSS.HNN. ML:2.3 0.00076496085 0.1984 AML other m 2021-10-18T12:56:51.81
IV.ASSB.HHN. ML:1.8 0.00022469434999999998 0.3584 AML other m 2021-10-18T12:56:52.36
IV.SNTG.HHN. ML:1.4 0.00010137448 0.576 AML other m 2021-10-18T12:56:52.00
IV.EL6.EHE. ML:2.0 0.00033303 0.1216 AML other m 2021-10-18T12:56:53.97
IV.EL6.EHN. ML:2.3 0.00056445515 0.4608 AML other m 2021-10-18T12:56:54.29
IV.RM33.EHE. ML:1.6 0.00011863413 0.5248 AML other m 2021-10-18T12:56:54.76
IV.RM33.EHN. ML:1.8 0.0001615487 0.384 AML other m 2021-10-18T12:56:54.65
IV.ARRO.EHN. ML:1.6 0.00011459255 0.1024 AML other m 2021-10-18T12:56:54.92
IV.MOMA.HHN. ML:1.6 0.000125132 0.2176 AML other m 2021-10-18T12:56:55.15
IV.ATCC.EHN. ML:1.6 0.00011950240899999999 0.3456 AML other m 2021-10-18T12:56:55.26
IV.ATCC.EHE. ML:1.8 0.00019559850000000001 0.2432 AML other m 2021-10-18T12:56:55.26
IV.FOSV.EHE. ML:1.5 0.00008460467 0.576 AML other m 2021-10-18T12:56:55.45
IV.MOMA.HNE. ML:1.9 0.00021715695 0.2112 AML other m 2021-10-18T12:56:55.38
IV.MOMA.HHE. ML:1.9 0.00021657454999999997 0.2048 AML other m 2021-10-18T12:56:55.39
IV.TERO.HHN. ML:2.0 0.00025451609999999997 0.3392 AML other m 2021-10-18T12:56:55.70
IV.TERO.HNE. ML:1.8 0.00017443157500000002 0.3648 AML other m 2021-10-18T12:56:55.76
IV.CING.HHN. ML:1.8 0.00016618294 0.9216 AML other m 2021-10-18T12:56:56.08
IV.TERO.HNN. ML:2.2 0.00041609450000000005 0.32 AML other m 2021-10-18T12:56:55.80
IV.FOSV.EHN. ML:1.7 0.0001469722 0.3584 AML other m 2021-10-18T12:56:55.86
IV.CING.HHE. ML:1.6 0.00011571418 0.3008 AML other m 2021-10-18T12:56:55.86
IV.TERO.HHE. ML:1.8 0.00015251124999999998 0.32 AML other m 2021-10-18T12:56:55.80
IV.MURB.HHE. ML:2.2 0.00029903605 0.224 AML other m 2021-10-18T12:56:59.52
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
Waveforms Seismic signals in miniseed + resp format Download