Earthquake with magnitude of ML 1.4 on date 03-12-2020 and time 11:15:57 (Italy) in region 3 km W Porano (TR)

A magnitude ML 1.4 earthquake occured in region: 3 km W Porano (TR), on

  • 03-12-2020 10:15:57 (UTC)
  • 03-12-2020 11:15:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.68, 12.07 at 11 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
Porano TR 3 1966 1966
Orvieto TR 5 20630 22596
Lubriano VT 6 909 23505
Bagnoregio VT 7 3650 27155
Castel Giorgio TR 8 2131 29286
Bolsena VT 8 3991 33277
Castel Viscardo TR 10 2938 36215
Castiglione in Teverina VT 12 2329 38544
Baschi TR 12 2722 41266
Civitella d'Agliano VT 13 1640 42906
San Lorenzo Nuovo VT 13 2091 44997
Celleno VT 15 1355 46352
Grotte di Castro VT 16 2683 49035
Allerona TR 16 1794 50829
Montefiascone VT 16 13432 64261
Graffignano VT 17 2292 66553
Ficulle TR 17 1669 68222
Gradoli VT 18 1353 69575
Acquapendente VT 18 5506 75081
Montecchio TR 18 1676 76757
Capodimonte VT 20 1731 78488

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of Viterbo (67173 inhabitants)
49 Km W of Terni (111501 inhabitants)
54 Km SW of Perugia (166134 inhabitants)
60 Km SW of Foligno (57155 inhabitants)
69 Km NE of Civitavecchia (52991 inhabitants)
78 Km E of Grosseto (82087 inhabitants)
88 Km S of Arezzo (99543 inhabitants)
93 Km SE of Siena (53903 inhabitants)
93 Km NW of Guidonia Montecelio (88673 inhabitants)
94 Km NW of Roma (2864731 inhabitants)
100 Km NW of Tivoli (56533 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 1.4 2020-12-03
10:15:57
42.68 12.07 11 2021-02-26
14:56:10
Bollettino Sismico Italiano INGV 85320031
Reviewed
Rev100
ML 1.5 2020-12-03
10:15:57
42.68 12.08 10 2020-12-03
10:36:50
Sala Sismica INGV-Roma 85174501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-03 10:15:57 ± 0.14
Latitude 42.68 ± 0.01
Longitude 12.07 ± 0.00
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85320031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 516
Semi-minor axis of confidence ellipse (meter) 470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 189
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 28
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
Epicentral distance of station farthest from the epicenter (degree) 0.65291
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 85174501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-03 10:36:50

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 85320031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-28 10:53:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TDS.HHZ. 2020-12-03T10:17:52.01 3.0 undecidable manual Sn -0.59 0
CR.ZAG.BHZ. 2020-12-03T10:17:50.38 3.0 undecidable manual Sn 3.53 0
IV.CTI.HHZ. 2020-12-03T10:17:27.30 3.0 undecidable manual Sn 0.66 0
IV.MCEL.HHZ. 2020-12-03T10:17:01.25 3.0 undecidable manual Pg 9.76 0
GU.CANO.HHZ. 2020-12-03T10:16:59.91 3.0 negative manual Pg 14.8 0
IV.TREG.HNZ. 2020-12-03T10:16:40.72 3.0 undecidable manual Pn -0.28 0
IV.CPGN.EHZ. 2020-12-03T10:16:36.22 3.0 undecidable manual S 4.58 0
IV.CRTC.HHZ. 2020-12-03T10:16:34.88 3.0 undecidable manual S 0.84 0
IV.IMOL.EHZ. 2020-12-03T10:16:32.03 3.0 undecidable manual Pg 7.82 0
IV.LAV9.HNZ. 2020-12-03T10:16:16.73 3.0 negative manual P 0.04 0
IV.PE3.EHZ. 2020-12-03T10:16:14.44 3.0 undecidable manual P -0.92 0
IV.BARO.EHZ. 2020-12-03T10:16:12.88 0.6 undecidable manual S 182 0.4362 50 -0.25 48
TV.SF01.EHZ. 2020-12-03T10:16:11.81 0.3 undecidable manual S 289 0.3921 50 -0.02 74
IV.MOMA.HHZ. 2020-12-03T10:16:11.61 0.6 undecidable manual S 72 0.3876 50 -0.1 49
IT.GNU.HGZ. 2020-12-03T10:16:11.88 0.3 undecidable manual S 72 0.3876 50 0.17 77
TV.SF11.HHZ. 2020-12-03T10:16:10.24 0.6 undecidable manual S 303 0.3399 50 -0.05 50
TV.SF13.HHE. 2020-12-03T10:16:10.62 0.6 undecidable manual S 292 0.3552 50 -0.13 49
IV.ATCC.EHE. 2020-12-03T10:16:10.24 0.3 undecidable manual P 40 0.6529 50 -0.07 70
TV.SF14.HHE. 2020-12-03T10:16:10.03 0.6 undecidable manual S 282 0.3399 50 -0.27 48
IV.ATVA.EHE. 2020-12-03T10:16:09.23 0.3 undecidable manual P 15 0.6151 50 -0.43 64
TV.SF03.EHN. 2020-12-03T10:16:09.01 0.6 undecidable manual S 293 0.3049 50 -0.23 48
TV.SF04.EHZ. 2020-12-03T10:16:09.83 0.6 undecidable manual S 297 0.3354 50 -0.32 47
IV.MCIV.CHZ. 2020-12-03T10:16:08.84 0.6 undecidable manual S 288 0.3022 50 -0.34 47
IV.MGAB.HHZ. 2020-12-03T10:16:07.24 0.6 undecidable manual S 8 0.2311 50 0.18 53
IV.ARCI.HHN. 2020-12-03T10:16:07.59 0.3 undecidable manual P 291 0.4658 50 0.48 71
IT.GNU.HGZ. 2020-12-03T10:16:06.14 0.3 undecidable manual P 72 0.3876 50 0.37 74
IV.SACS.HHZ. 2020-12-03T10:16:06.29 0.6 undecidable manual S 325 0.2014 50 0.09 52
IV.BARO.EHZ. 2020-12-03T10:16:06.26 0.3 undecidable manual P 182 0.4362 50 -0.33 71
TV.SF01.EHZ. 2020-12-03T10:16:06.24 0.3 undecidable manual P 289 0.3921 50 0.4 74
IV.CESX.HHZ. 2020-12-03T10:16:06.19 0.3 undecidable manual P 101 0.3885 50 0.4 73
IV.MOMA.HHZ. 2020-12-03T10:16:05.31 0.1 undecidable manual P 72 0.3876 50 -0.46 90
TV.SF13.HHE. 2020-12-03T10:16:05.29 0.3 undecidable manual P 292 0.3552 50 0.07 77
TV.SF11.HHZ. 2020-12-03T10:16:05.37 0.3 undecidable manual P 303 0.3399 50 0.42 74
TV.SF04.EHZ. 2020-12-03T10:16:05.24 0.1 undecidable manual P 297 0.3354 50 0.37 100
TV.SF03.EHN. 2020-12-03T10:16:04.71 0.3 undecidable manual P 293 0.3049 50 0.37 75
IV.MCIV.CHZ. 2020-12-03T10:16:04.44 0.3 undecidable manual P 288 0.3022 50 0.13 79
TV.SF14.HHE. 2020-12-03T10:16:04.75 0.1 undecidable manual P 282 0.3399 50 -0.21 97
IV.MGAB.HHZ. 2020-12-03T10:16:02.78 0.1 undecidable manual P 8 0.2311 50 -0.3 97
IV.SACS.HHZ. 2020-12-03T10:16:02.33 0.1 undecidable manual P 325 0.2014 50 -0.26 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:1.3 0.00014 1.38 AML other m 2020-12-03T10:16:06.30
IV.MGAB.HNE. ML:1.3 0.000120985895 0.4992 AML other m 2020-12-03T10:16:07.16
IV.SACS.HHE. ML:1.2 0.00011521325 0.1856 AML other m 2020-12-03T10:16:07.34
IV.MGAB.HHE. ML:1.3 0.000125206635 0.4608 AML other m 2020-12-03T10:16:07.49
IV.MGAB.HNN. ML:1.5 0.0001913217 0.1984 AML other m 2020-12-03T10:16:07.83
IV.MGAB.HHN. ML:1.6 0.00020338035 0.1984 AML other m 2020-12-03T10:16:07.93
IV.MCIV.CHN. ML:1 4.5774335E-5 1.0624 AML other m 2020-12-03T10:16:09.43
IV.MCIV.CHE. ML:1.5 0.0001255 0.32 AML other m 2020-12-03T10:16:09.98
TV.SF04.EHE. ML:1.2 6.130305E-5 0.4608 AML other m 2020-12-03T10:16:10.24
TV.SF04.EHN. ML:1.4 9.3751475E-5 0.6784 AML other m 2020-12-03T10:16:10.70
TV.SF01.EHN. ML:1.3 5.7901495E-5 0.32 AML other m 2020-12-03T10:16:11.83
TV.SF01.EHE. ML:1.5 0.000100360945 0.3584 AML other m 2020-12-03T10:16:14.13
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