Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 09-12-2018 and time 03:39:15 (Italy) in region 4 km W Visso (MC)

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

  • 09-12-2018 02:39:15 (UTC)
  • 09-12-2018 03:39:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9460, 13.0410 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 4 1107 1107
Monte Cavallo MC 6 145 1252
Preci PG 7 724 1976
Ussita MC 8 444 2420
Castelsantangelo sul Nera MC 11 281 2701
Fiordimonte MC 11 202 2903
Sellano PG 11 1079 3982
Pieve Torina MC 11 1458 5440
Pievebovigliana MC 14 866 6306
Fiastra MC 14 559 6865
Acquacanina MC 14 121 6986
Muccia MC 15 915 7901
Serravalle di Chienti MC 16 1070 8971
Bolognola MC 16 142 9113
Cerreto di Spoleto PG 17 1075 10188
Norcia PG 18 4957 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
100 Km S of Fano (60888 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 2018-12-09
02:39:15		 42.9458 13.0412 12 2019-06-04
09:16:11		 Bollettino Sismico Italiano INGV 67050851
Reviewed
Rev100 		ML 2.0 2018-12-09
02:39:15		 42.9368 13.0342 11 2018-12-09
02:43:00		 Sala Sismica INGV-Roma 63778341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-09 02:39:15 ± 0.03
Latitude 42.9458 ± 0.0018
Longitude 13.0412 ± 0.0025
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 67050851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 208
Semi-minor axis of confidence ellipse (meter) 57
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) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 59
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.01709
Epicentral distance of station farthest from the epicenter (degree) 0.87234
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 63778341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-09 02:43:00

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 67050851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-29 10:09:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2018-12-09T02:39:33.25 3.0 positive manual P 96.8253 1.03 0
IV.TERO.HHZ. 2018-12-09T02:39:33.98 0.6 undecidable manual S 128 58.1973 91 0.12 45
IV.CAMP.HHZ. 2018-12-09T02:39:33.10 0.6 undecidable manual S 146 54.501 91 0.23 45
IV.PE3.EHZ. 2018-12-09T02:39:33.97 3.0 positive manual P 94.1391 2.17 0
IV.BADI.EHZ. 2018-12-09T02:39:32.27 3.0 undecidable manual P 89.7435 1.14 0
IV.RM33.EHZ. 2018-12-09T02:39:31.64 0.6 undecidable manual S 164 50.5161 91 -0.17 45
IV.ARRO.EHZ. 2018-12-09T02:39:30.60 0.6 undecidable manual S 209 46.4202 92 -0.13 46
IV.ATCC.EHZ. 2018-12-09T02:39:30.01 0.6 undecidable manual S 309 41.9247 92 0.47 43
IV.FOSV.EHZ. 2018-12-09T02:39:30.25 0.6 undecidable manual S 330 44.8218 92 -0.06 47
IV.COR1.EHZ. 2018-12-09T02:39:30.65 3.0 undecidable manual P 76.1682 1.62 0
IV.SMA1.EHZ. 2018-12-09T02:39:29.91 0.6 undecidable manual S 145 42.4242 92 0.26 45
IV.ATPI.EHZ. 2018-12-09T02:39:29.69 3.0 positive manual P 76.1682 0.66 0
IV.EL6.EHZ. 2018-12-09T02:39:29.54 0.6 undecidable manual S 7 42.8238 92 -0.22 46
IV.PIEI.HHZ. 2018-12-09T02:39:29.43 0.3 undecidable manual P 328 77.1672 91 0.25 64
IV.MOMA.HHZ. 2018-12-09T02:39:29.85 0.6 undecidable manual S 248 41.4252 92 0.47 43
IV.T1299.HNN. 2018-12-09T02:39:29.42 0.6 undecidable manual S 150 39.7269 92 0.48 44
IV.ATVO.HHZ. 2018-12-09T02:39:28.21 0.3 undecidable manual P 314 70.5738 91 0.05 67
IV.LNSS.HHZ. 2018-12-09T02:39:28.72 0.3 undecidable manual S 180 38.0286 92 0.23 69
IV.SNTG.HHZ. 2018-12-09T02:39:27.68 0.6 undecidable manual S 347 35.2425 93 -0.06 48
IV.MTRA.EHE. 2018-12-09T02:39:27.74 0.6 undecidable manual S 126 35.742 92 -0.13 47
IV.MF5.EHZ. 2018-12-09T02:39:27.90 0.6 undecidable manual S 82 34.3434 93 0.41 45
IV.ASSB.HHZ. 2018-12-09T02:39:27.06 0.3 undecidable manual S 289 32.8449 93 -0.04 73
IV.SSFR.HHZ. 2018-12-09T02:39:26.38 0.3 undecidable manual P 339 58.2972 91 0.1 68
IV.ARVD.HHZ. 2018-12-09T02:39:26.84 0.3 undecidable manual P 353 61.7937 91 0.03 69
IV.ATFO.HHZ. 2018-12-09T02:39:26.82 0.6 undecidable manual P 321 60.1953 91 0.25 44
IV.TERO.HHZ. 2018-12-09T02:39:26.08 0.3 undecidable manual P 128 58.1973 91 -0.18 67
IV.CAMP.HHZ. 2018-12-09T02:39:25.44 0.1 undecidable manual P 146 54.501 91 -0.25 89
IV.FIU1.HNZ. 2018-12-09T02:39:25.81 0.6 undecidable manual S 342 28.3494 94 -0.09 48
IV.MURB.HHZ. 2018-12-09T02:39:25.80 0.1 undecidable manual P 310 54.7008 91 0.08 92
IV.MDAR.HNZ. 2018-12-09T02:39:25.91 0.3 undecidable manual S 17 28.5492 94 -0.06 72
IV.GUMA.HHZ. 2018-12-09T02:39:25.95 0.6 undecidable manual S 61 27.1506 94 0.36 46
IV.RM33.EHZ. 2018-12-09T02:39:25.16 0.3 undecidable manual P 164 50.5161 91 0.09 69
IV.PF6.EHZ. 2018-12-09T02:39:24.51 0.6 undecidable manual S 30 24.6531 95 -0.41 45
IV.FOSV.EHZ. 2018-12-09T02:39:24.19 0.1 undecidable manual P 330 44.8218 92 -0.02 95
IV.MMO1.EHZ. 2018-12-09T02:39:24.42 0.3 undecidable manual S 102 23.754 95 -0.27 70
IV.ARRO.EHZ. 2018-12-09T02:39:24.30 0.1 undecidable manual P 209 46.4202 92 -0.15 92
IV.CING.HNZ. 2018-12-09T02:39:24.84 0.1 undecidable manual P 15 49.3173 92 -0.05 93
IV.SEF1.HNZ. 2018-12-09T02:39:24.72 0.6 undecidable manual S 341 23.5542 95 0.09 48
IV.EL6.EHZ. 2018-12-09T02:39:23.92 0.1 undecidable manual P 7 42.8238 92 0.03 95
IV.MOMA.HHZ. 2018-12-09T02:39:23.55 0.1 positive manual P 248 41.4252 92 -0.12 93
IV.MML1.HNZ. 2018-12-09T02:39:23.44 0.3 undecidable manual S 343 19.4694 99 -0.09 73
IV.T1299.HNN. 2018-12-09T02:39:23.41 0.1 undecidable manual P 150 39.7269 92 -0.01 95
IV.SMA1.EHZ. 2018-12-09T02:39:23.70 0.1 undecidable manual P 145 42.4242 92 -0.13 93
IV.ATCC.EHZ. 2018-12-09T02:39:23.75 0.1 undecidable manual P 309 41.9247 92 -0.01 96
IV.LNSS.HHZ. 2018-12-09T02:39:22.89 0.1 undecidable manual P 180 38.0286 92 -0.27 91
IV.ASSB.HHZ. 2018-12-09T02:39:22.20 0.1 positive manual P 289 32.8449 93 -0.15 94
IV.SNTG.HHZ. 2018-12-09T02:39:22.68 0.1 undecidable manual P 347 35.2425 93 -0.05 96
IV.MTRA.EHE. 2018-12-09T02:39:22.57 0.3 undecidable manual P 126 35.742 92 -0.23 69
IV.MF5.EHZ. 2018-12-09T02:39:22.91 0.1 positive manual P 82 34.3434 93 0.33 91
IV.GUMA.HHZ. 2018-12-09T02:39:21.70 0.1 positive manual P 61 27.1506 94 0.22 94
IV.NRCA.HNZ. 2018-12-09T02:39:21.74 0.6 undecidable manual S 154 13.7751 112 -0.34 47
IV.FIU1.HNZ. 2018-12-09T02:39:21.71 0.3 undecidable manual P 342 28.3494 94 0.05 73
IV.FDMO.HHZ. 2018-12-09T02:39:21.17 0.3 undecidable manual S 20 10.7781 123 -0.18 74
IV.MC2.EHZ. 2018-12-09T02:39:21.97 0.6 undecidable manual S 108 12.5763 116 0.18 48
IV.MDAR.HNZ. 2018-12-09T02:39:21.69 0.3 undecidable manual P 17 28.5492 94 -0.01 73
IV.SEF1.HNZ. 2018-12-09T02:39:20.92 0.3 undecidable manual P 341 23.5542 95 -0.01 74
IV.PF6.EHZ. 2018-12-09T02:39:20.99 0.3 undecidable manual P 30 24.6531 95 -0.11 72
IV.MML1.HNZ. 2018-12-09T02:39:20.29 0.1 negative manual P 343 19.4694 99 -0.01 99
IV.MMO1.EHZ. 2018-12-09T02:39:20.83 0.1 positive manual P 102 23.754 95 -0.13 96
IV.FDMO.HHZ. 2018-12-09T02:39:19.05 0.1 negative manual P 20 10.7781 123 0.01 100
IV.MC2.EHZ. 2018-12-09T02:39:19.35 0.1 positive manual P 108 12.5763 116 0.06 99
IV.FEMA.HNZ. 2018-12-09T02:39:19.87 0.6 undecidable manual S 21 1.8981 168 -0.16 51
IV.NRCA.HNZ. 2018-12-09T02:39:19.36 0.1 undecidable manual P 154 13.7751 112 -0.1 99
IV.FEMA.HNZ. 2018-12-09T02:39:18.43 0.1 negative manual P 21 1.8981 168 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.3 0.003225609 0.1904 AML other m 2018-12-09T02:39:20.49
IV.FEMA.HNN. ML:2.2 0.002477269 0.1696 AML other m 2018-12-09T02:39:20.61
IV.FDMO.HHN. ML:2.5 0.0035600000000000002 0.18 AML other m 2018-12-09T02:39:21.37
IV.FDMO.HHE. ML:2.4 0.002725 0.36 AML other m 2018-12-09T02:39:21.48
IV.NRCA.HHN. ML:2.5 0.0029649999999999998 0.14 AML other m 2018-12-09T02:39:21.89
IV.NRCA.HNN. ML:2.5 0.0029249999999999996 0.12 AML other m 2018-12-09T02:39:21.90
IV.NRCA.HNE. ML:2.4 0.002385 0.16 AML other m 2018-12-09T02:39:22.52
IV.NRCA.HHE. ML:2.4 0.00244 0.14 AML other m 2018-12-09T02:39:22.51
IV.GUMA.HNN. ML:2.4 0.001365865385 0.16 AML other m 2018-12-09T02:39:26.37
IV.GUMA.HHN. ML:2.5 0.00183 0.34 AML other m 2018-12-09T02:39:26.38
IV.GUMA.HNE. ML:2.4 0.0013 0.82 AML other m 2018-12-09T02:39:26.98
IV.GUMA.HHE. ML:2.3 0.001099 0.76 AML other m 2018-12-09T02:39:26.98
IV.ASSB.HHE. ML:2.4 0.0011600000000000002 0.32 AML other m 2018-12-09T02:39:27.46
IV.ASSB.HHN. ML:2.2 0.0006985 0.42 AML other m 2018-12-09T02:39:27.59
IV.SNTG.HHE. ML:1.9 0.0003325 0.1 AML other m 2018-12-09T02:39:28.26
IV.SNTG.HNE. ML:2.0 0.0003585 0.12 AML other m 2018-12-09T02:39:28.20
IV.SNTG.HHN. ML:1.8 0.0002515 1.36 AML other m 2018-12-09T02:39:28.27
IV.SNTG.HNN. ML:1.8 0.00023214410000000003 0.0992 AML other m 2018-12-09T02:39:28.99
IV.MF5.EHE. ML:2.2 0.0006103024 0.2208 AML other m 2018-12-09T02:39:29.06
IV.MF5.EHN. ML:2.0 0.0003797358 0.2 AML other m 2018-12-09T02:39:28.97
IV.LNSS.HHE. ML:2.1 0.000492 0.28 AML other m 2018-12-09T02:39:29.19
IV.LNSS.HHN. ML:2.1 0.0005095000000000001 0.44 AML other m 2018-12-09T02:39:29.24
IV.ATCC.EHE. ML:2.1 0.00041749999999999996 0.32 AML other m 2018-12-09T02:39:30.39
IV.ATCC.EHN. ML:1.8 0.00019717255 0.36 AML other m 2018-12-09T02:39:30.24
IV.MOMA.HHN. ML:2.0 0.0002915 0.12 AML other m 2018-12-09T02:39:30.94
IV.EL6.EHN. ML:2.2 0.0004648196 0.2992 AML other m 2018-12-09T02:39:31.12
IV.FOSV.EHN. ML:1.5 0.0000843949 0.16 AML other m 2018-12-09T02:39:31.10
IV.FOSV.EHE. ML:1.6 0.0001199 1.66 AML other m 2018-12-09T02:39:31.99
IV.MOMA.HHE. ML:2.1 0.0004485 0.2 AML other m 2018-12-09T02:39:31.46
IV.ARRO.EHN. ML:1.8 0.0001735 0.24 AML other m 2018-12-09T02:39:31.70
IV.ARRO.EHE. ML:2.0 0.00026601765 0.2 AML other m 2018-12-09T02:39:31.93
IV.EL6.EHE. ML:2.2 0.0005255 0.32 AML other m 2018-12-09T02:39:31.76
IV.RM33.EHN. ML:1.6 0.00008790000000000001 0.84 AML other m 2018-12-09T02:39:33.43
IV.RM33.EHE. ML:1.7 0.00013000000000000002 0.16 AML other m 2018-12-09T02:39:33.49
IV.TERO.HHE. ML:1.6 0.00009604999999999999 0.44 AML other m 2018-12-09T02:39:35.49
IV.TERO.HHN. ML:1.7 0.00010445158 0.24 AML other m 2018-12-09T02:39:36.36
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