Earthquake with magnitude of ML 1.5 on date 12-12-2019 and time 21:21:03 (Italy) in region 7 km NW Vetralla (VT)

A magnitude ML 1.5 earthquake occured in region: 7 km NW Vetralla (VT), on

  • 12-12-2019 20:21:03 (UTC)
  • 12-12-2019 21:21:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.37, 12 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Vetralla VT 7 14037 14037
Villa San Giovanni in Tuscia VT 10 1331 15368
Viterbo VT 10 67173 82541
Blera VT 10 3344 85885
Tuscania VT 12 8451 94336
Barbarano Romano VT 14 1077 95413
Monte Romano VT 14 2054 97467
Arlena di Castro VT 18 854 98321
Vejano VT 18 2254 100575
Vitorchiano VT 18 5233 105808
Capranica VT 19 6487 112295
Canepina VT 19 3082 115377
Montefiascone VT 19 13432 128809
Ronciglione VT 19 8669 137478
Marta VT 20 3499 140977
Caprarola VT 20 5487 146464

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Viterbo (67173 inhabitants)
35 Km NE of Civitavecchia (52991 inhabitants)
57 Km W of Terni (111501 inhabitants)
66 Km NW of Roma (2864731 inhabitants)
69 Km N of Fiumicino (78395 inhabitants)
72 Km NW of Guidonia Montecelio (88673 inhabitants)
79 Km NW of Tivoli (56533 inhabitants)
85 Km SE of Grosseto (82087 inhabitants)
87 Km SW of Foligno (57155 inhabitants)
88 Km NW of Pomezia (62966 inhabitants)
88 Km SW of Perugia (166134 inhabitants)
99 Km NW of Velletri (53303 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
Rev 1000 ML 1.5 2019-12-12
20:21:03
42.37 12 10 2020-02-28
16:42:13
Bollettino Sismico Italiano INGV 74592691
Rev 100 ML 1.5 2019-12-12
20:21:02
42.36 11.99 9 2019-12-12
20:41:54
Sala Sismica INGV-Roma 74582911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-12 20:21:03 ± 0.13
Latitude 42.37 ± 0.01
Longitude 12.00 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74592691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 781
Semi-minor axis of confidence ellipse (meter) 695
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.64661
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 74592691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-17 13:54:29

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 74582911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-12 20:41:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2019-12-12T20:23:02.64 3.0 undecidable manual Sn 0.88 0
IV.MSSA.HHZ. 2019-12-12T20:22:23.85 3.0 undecidable manual Sg 2.83 0
IV.CET2.HHZ. 2019-12-12T20:22:15.88 3.0 undecidable manual Pg 12.1 0
IV.SPS2.HHZ. 2019-12-12T20:22:13.06 3.0 negative manual Pn 4.09 0
CR.STON.BHZ. 2019-12-12T20:22:11.28 3.0 undecidable manual Pn 6.9 0
MN.TRI.HHZ. 2019-12-12T20:21:55.70 3.0 negative manual Pn -0.62 0
IV.CRMI.HHZ. 2019-12-12T20:21:54.21 3.0 undecidable manual Sg -0.34 0
IV.FIR.HHZ. 2019-12-12T20:21:52.76 3.0 undecidable manual S 1.13 0
IV.MOMA.HHZ. 2019-12-12T20:21:23.71 0.6 undecidable manual S 43 0.6043 50 0.05 45
IV.CESX.HHE. 2019-12-12T20:21:20.54 0.6 undecidable manual S 60 0.4937 50 0.16 45
TV.SF14.HHN. 2019-12-12T20:21:19.43 0.6 undecidable manual S 324 0.482 50 -0.61 40
IV.SRES.HHN. 2019-12-12T20:21:17.69 0.3 undecidable manual S 109 0.3966 50 0.18 69
IV.MAON.HHZ. 2019-12-12T20:21:16.64 0.1 undecidable manual P 276 0.6466 50 0.93 68
IV.ARCI.HHZ. 2019-12-12T20:21:15.96 0.3 undecidable manual P 322 0.6205 50 0.68 57
IV.TOLF.HHZ. 2019-12-12T20:21:14.47 0.6 undecidable manual S 180 0.3022 50 -0.25 46
IV.MOMA.HHZ. 2019-12-12T20:21:14.98 0.1 undecidable manual P 43 0.6043 50 -0.01 91
IV.LATE.HHZ. 2019-12-12T20:21:14.53 0.6 undecidable manual S 329 0.2869 50 0.27 46
IV.CESX.HHE. 2019-12-12T20:21:13.09 0.3 undecidable manual P 60 0.4937 50 0 70
TV.SF04.EHZ. 2019-12-12T20:21:13.92 0.3 undecidable manual P 332 0.5324 50 0.17 67
TV.SF14.HHN. 2019-12-12T20:21:12.28 0.1 undecidable manual P 324 0.482 50 -0.62 80
IV.MCIV.CHZ. 2019-12-12T20:21:12.85 0.3 undecidable manual P 330 0.4766 50 0.05 70
IV.SACS.HHZ. 2019-12-12T20:21:12.70 0.1 undecidable manual P 352 0.4865 50 -0.28 88
IV.SRES.HHN. 2019-12-12T20:21:11.49 0.3 undecidable manual P 109 0.3966 50 0.05 71
IV.LATE.HHZ. 2019-12-12T20:21:09.35 0.1 undecidable manual P 329 0.2869 50 -0.21 93
IV.BARO.EHZ. 2019-12-12T20:21:09.13 0.3 undecidable manual S 163 0.1241 127 0 75
IV.TOLF.HHZ. 2019-12-12T20:21:09.54 0.1 positive manual P 180 0.3022 50 -0.29 91
IV.BARO.EHZ. 2019-12-12T20:21:06.59 0.1 positive manual P 163 0.1241 127 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BARO.HNN. ML:0 0.000437572 0.4608 AML other m 2019-12-12T20:21:12.05
IV.BARO.HNE. ML:1.7 0.0005306035 0.1792 AML other m 2019-12-12T20:21:09.54
IV.BARO.EHN. ML:3.1 0.011711934 0.7264 AML other m 2019-12-12T20:21:11.30
IV.TOLF.HHE. ML:1.4 0.00010951468 0.256 AML other m 2019-12-12T20:21:14.57
IV.TOLF.HHN. ML:1.3 9.1330015E-5 0.0768 AML other m 2019-12-12T20:21:15.35
IV.LATE.HHN. ML:1.5 0.00013607435 0.256 AML other m 2019-12-12T20:21:15.69
IV.SACS.HHN. ML:1.2 3.7887385E-5 1.0144 AML other m 2019-12-12T20:21:17.03
TV.SF04.EHN. ML:1.5 6.0691931E-5 0.3072 AML other m 2019-12-12T20:21:22.68
IV.LATE.HHE. ML:1.3 8.86766E-5 1.4752 AML other m 2019-12-12T20:21:22.21
IV.SACS.HNN. ML:1.8 0.000140466165 1.1136 AML other m 2019-12-12T20:21:25.31
TV.SF04.EHE. ML:1.3 4.319096E-5 1.5136 AML other m 2019-12-12T20:21:27.96
IV.SACS.HNE. ML:1.7 0.000120988225 0.848 AML other m 2019-12-12T20:21:32.78
IV.SACS.HHE. ML:1.2 4.1789665E-5 0.5856 AML other m 2019-12-12T20:21:39.30
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download