Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 12-02-2020 and time 01:15:28 (Italy) in region 2 km SE Visso (MC)

A magnitude ML 1.8 earthquake occured in region: 2 km SE Visso (MC), on

  • 12-02-2020 00:15:28 (UTC)
  • 12-02-2020 01:15:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9190, 13.0950 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
Visso MC 2 1107 1107
Ussita MC 5 444 1551
Castelsantangelo sul Nera MC 6 281 1832
Preci PG 6 724 2556
Monte Cavallo MC 11 145 2701
Fiordimonte MC 13 202 2903
Bolognola MC 14 142 3045
Norcia PG 14 4957 8002
Sellano PG 14 1079 9081
Acquacanina MC 14 121 9202
Fiastra MC 14 559 9761
Pieve Torina MC 15 1458 11219
Pievebovigliana MC 16 866 12085
Cerreto di Spoleto PG 18 1075 13160
Muccia MC 19 915 14075
Montemonaco AP 19 604 14679

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
97 Km W of Montesilvano (53738 inhabitants)
98 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 2020-02-12
00:15:28		 42.9188 13.0947 12 2020-07-18
21:08:23		 Bollettino Sismico Italiano INGV 77026201
Reviewed
Rev100 		ML 1.7 2020-02-12
00:15:28		 42.9173 13.0985 10 2020-02-12
00:22:32		 Sala Sismica INGV-Roma 76448371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-12 00:15:28 ± 0.04
Latitude 42.9188 ± 0.0018
Longitude 13.0947 ± 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 77026201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 25
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
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) 48
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
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) 0.05396
Epicentral distance of station farthest from the epicenter (degree) 0.58996
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 77026201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-22 17:57:05

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 76448371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-12 00:22:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-02-12T00:15:45.46 0.6 undecidable manual S 128 52.9026 91 0 46
IV.EL6.EHZ. 2020-02-12T00:15:43.91 0.6 undecidable manual S 1 45.5211 91 0.41 43
IV.SMA1.EHZ. 2020-02-12T00:15:41.30 0.3 undecidable manual S 148 37.5291 91 -0.06 71
IV.T1299.HNN. 2020-02-12T00:15:41.02 0.6 undecidable manual S 154 35.0427 92 0.31 45
IV.LNSS.HHZ. 2020-02-12T00:15:40.81 0.3 undecidable manual S 187 35.3424 92 0.04 71
IV.ARVD.HHZ. 2020-02-12T00:15:40.13 0.3 undecidable manual P 349 65.49 91 -0.26 64
IV.GIGS.HHZ. 2020-02-12T00:15:39.93 0.3 undecidable manual P 143 64.6908 91 -0.35 63
IV.GAVE.EHZ. 2020-02-12T00:15:39.40 0.3 undecidable manual S 213 29.9478 92 0.05 71
IV.GUMA.HNZ. 2020-02-12T00:15:38.37 0.3 undecidable manual S 51 25.2525 93 0.29 69
IV.TERO.HHZ. 2020-02-12T00:15:38.28 0.3 undecidable manual P 128 52.9026 91 -0.18 67
IV.OFFI.HHE. 2020-02-12T00:15:38.54 0.1 undecidable manual P 88 48.0186 91 0.83 74
IV.SEF1.HNZ. 2020-02-12T00:15:38.68 0.6 undecidable manual S 335 27.9498 92 -0.13 47
IV.CESX.HHE. 2020-02-12T00:15:38.77 0.1 undecidable manual P 230 53.8017 91 0.17 89
IV.EL6.EHZ. 2020-02-12T00:15:37.21 0.1 undecidable manual P 1 45.5211 91 -0.12 92
IV.MNTT.EHZ. 2020-02-12T00:15:37.38 0.6 undecidable manual P 68 43.623 91 0.35 44
IV.MOMA.HHZ. 2020-02-12T00:15:37.24 0.3 undecidable manual P 254 44.5221 91 0.07 69
IV.MML1.HNZ. 2020-02-12T00:15:37.51 0.3 undecidable manual S 335 23.754 93 -0.19 70
IT.GNU.HGE. 2020-02-12T00:15:37.47 0.1 undecidable manual P 254 44.5221 91 0.3 88
IV.CAMP.HHZ. 2020-02-12T00:15:37.62 0.1 undecidable manual P 149 49.617 91 -0.33 87
IV.FOSV.EHZ. 2020-02-12T00:15:37.80 0.3 undecidable manual P 327 49.7169 91 -0.16 68
IV.ATCC.EHZ. 2020-02-12T00:15:37.75 0.1 undecidable manual P 309 47.2194 91 0.16 91
IV.ARRO.EHZ. 2020-02-12T00:15:37.56 0.3 undecidable manual P 216 46.2204 91 0.13 68
IV.CESI.HHZ. 2020-02-12T00:15:36.28 0.1 undecidable manual S 302 18.1707 97 0.08 97
IV.CSP1.EHZ. 2020-02-12T00:15:36.79 0.1 undecidable manual S 25 21.1677 94 -0.21 93
IV.SNTG.HHZ. 2020-02-12T00:15:36.22 0.3 undecidable manual P 342 39.3273 91 -0.15 69
IV.MNTP.HNZ. 2020-02-12T00:15:36.69 0.6 undecidable manual P 51 38.8278 91 0.39 44
IV.MMO1.EHZ. 2020-02-12T00:15:36.00 0.1 undecidable manual S 96 18.9699 96 -0.42 90
IV.SAP2.EHE. 2020-02-12T00:15:35.30 0.1 undecidable manual P 51 31.6461 92 0.12 94
IV.SMA1.EHZ. 2020-02-12T00:15:35.82 0.1 undecidable manual P 148 37.5291 91 -0.27 90
IV.MF5.EHZ. 2020-02-12T00:15:35.17 0.3 undecidable manual P 75 30.6471 92 0.15 70
IV.T1299.HNN. 2020-02-12T00:15:35.78 0.1 undecidable manual P 154 35.0427 92 0.07 94
IV.LNSS.HHZ. 2020-02-12T00:15:35.60 0.3 undecidable manual P 187 35.3424 92 -0.15 70
IV.GAVE.EHZ. 2020-02-12T00:15:34.88 0.1 undecidable manual P 213 29.9478 92 -0.05 96
IV.SEF1.HNZ. 2020-02-12T00:15:34.43 0.1 undecidable manual P 335 27.9498 92 -0.19 93
IV.GUMA.HNZ. 2020-02-12T00:15:34.32 0.1 undecidable manual P 51 25.2525 93 0.13 95
IT.MTCL.HGZ. 2020-02-12T00:15:34.31 0.1 undecidable manual S 317 11.3775 118 -0.15 96
IV.FDMO.HHZ. 2020-02-12T00:15:34.65 0.3 undecidable manual S 357 13.0758 111 -0.23 71
IV.MC2.EHZ. 2020-02-12T00:15:33.67 0.1 undecidable manual S 96 7.6812 135 -0.01 99
IV.FEMA.HNZ. 2020-02-12T00:15:33.47 0.3 undecidable manual S 323 5.994 144 0.08 75
IV.MMO1.EHZ. 2020-02-12T00:15:33.08 0.1 undecidable manual P 96 18.9699 96 -0.16 95
IV.NRCA.HNZ. 2020-02-12T00:15:33.83 0.1 undecidable manual S 170 9.5793 126 -0.23 95
IV.CESI.HHZ. 2020-02-12T00:15:33.18 0.1 undecidable manual P 302 18.1707 97 0.07 97
IV.CSP1.EHZ. 2020-02-12T00:15:33.48 0.1 undecidable manual P 25 21.1677 94 -0.09 96
IV.MML1.HNZ. 2020-02-12T00:15:33.90 0.1 undecidable manual P 335 23.754 93 -0.07 96
IT.MTCL.HGZ. 2020-02-12T00:15:32.17 0.1 undecidable manual P 317 11.3775 118 0.06 99
IV.FDMO.HHZ. 2020-02-12T00:15:32.35 0.1 undecidable manual P 357 13.0758 111 0.01 99
IV.MC2.EHZ. 2020-02-12T00:15:31.75 0.1 undecidable manual P 96 7.6812 135 0.1 99
IV.FEMA.HNZ. 2020-02-12T00:15:31.70 0.1 undecidable manual P 323 5.994 144 0.21 97
IV.NRCA.HNZ. 2020-02-12T00:15:31.89 0.1 undecidable manual P 170 9.5793 126 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.1 0.0015899999999999998 1.1 AML other m 2020-02-12T00:15:34.02
IV.NRCA.HHN. ML:2.1 0.0016200000000000001 1.84 AML other m 2020-02-12T00:15:34.02
IV.NRCA.HHE. ML:2.1 0.001365 1.22 AML other m 2020-02-12T00:15:34.61
IV.NRCA.HNE. ML:2.0 0.001265 1.22 AML other m 2020-02-12T00:15:34.61
IV.CESI.HHN. ML:1.8 0.0005765 0.22 AML other m 2020-02-12T00:15:36.59
IV.CESI.HHE. ML:1.7 0.0004125 0.22 AML other m 2020-02-12T00:15:36.70
IV.CSP1.EHE. ML:1.7 0.00033400000000000004 0.74 AML other m 2020-02-12T00:15:36.54
IV.CSP1.EHN. ML:1.9 0.000492 1.64 AML other m 2020-02-12T00:15:37.04
IV.GAVE.EHN. ML:1.8 0.000273 0.28 AML other m 2020-02-12T00:15:39.82
IV.GAVE.EHE. ML:2.0 0.00042249999999999997 0.32 AML other m 2020-02-12T00:15:40.64
IV.LNSS.HHN. ML:1.5 0.00013105 1.02 AML other m 2020-02-12T00:15:42.53
IV.LNSS.HHE. ML:1.6 0.0001455 0.1 AML other m 2020-02-12T00:15:42.55
IV.SMA1.EHN. ML:1.4 0.00009105 0.6 AML other m 2020-02-12T00:15:42.62
IV.SMA1.EHE. ML:1.5 0.00010605 0.66 AML other m 2020-02-12T00:15:43.62
IV.MOMA.HHN. ML:1.3 0.00005885 0.74 AML other m 2020-02-12T00:15:44.59
IV.MOMA.HHE. ML:1.5 0.00008905 0.94 AML other m 2020-02-12T00:15:45.64
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