Earthquake with magnitude of ML 0.1 on date 25-01-2018 and time 15:17:29 (UTC) in region 2 km N Proceno (VT)

A magnitude ML 0.1 earthquake occured in region: 2 km N Proceno (VT), on

  • 25-01-2018 15:17:29 (UTC)
  • 25-01-2018 16:17:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7760, 11.8360 at 2 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
Proceno VT 2 557 557
Acquapendente VT 4 5506 6063
Onano VT 9 995 7058
Castell'Azzara GR 11 1476 8534
San Casciano dei Bagni SI 11 1632 10166
San Lorenzo Nuovo VT 12 2091 12257
Grotte di Castro VT 12 2683 14940
Allerona TR 12 1794 16734
Castel Viscardo TR 14 2938 19672
Castel Giorgio TR 14 2131 21803
Piancastagnaio SI 14 4230 26033
Sorano GR 14 3428 29461
Gradoli VT 15 1353 30814
Radicofani SI 15 1097 31911
Latera VT 17 836 32747
Abbadia San Salvatore SI 17 6444 39191
Fabro TR 18 2876 42067
Bolsena VT 19 3991 46058

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NW of Viterbo (67173 inhabitants)
58 Km SW of Perugia (166134 inhabitants)
59 Km E of Grosseto (82087 inhabitants)
71 Km W of Terni (111501 inhabitants)
73 Km SE of Siena (53903 inhabitants)
74 Km W of Foligno (57155 inhabitants)
76 Km N of Civitavecchia (52991 inhabitants)
77 Km S of Arezzo (99543 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 0.1 2018-01-25
15:17:29
42.7757 11.8358 2 2019-04-24
14:49:48
Bollettino Sismico Italiano INGV 65758521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-01-25 15:17:29 ± 0.28
Latitude 42.7757 ± 0.0162
Longitude 11.8358 ± 0.0086
Depth (km) 2 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65758521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1590
Semi-minor axis of confidence ellipse (meter) 1025
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 160
Circular confidence region, given by single value of horizontal uncertainty (meter) 1590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20325
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 65758521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-21 10:49:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NDIM.HNZ. 2018-01-25T15:18:43.13 3.0 undecidable manual Sg 10.81 0
IV.ZCCA.HHZ. 2018-01-25T15:18:33.09 3.0 undecidable manual Sg 12.24 0
IV.IACL.HHZ. 2018-01-25T15:18:07.26 3.0 undecidable manual Sn -0.65 0
IV.NDIM.HHZ. 2018-01-25T15:17:55.55 3.0 positive manual Pg 10.82 0
MN.TRI.HHZ. 2018-01-25T15:17:52.39 3.0 positive manual Pg 4.96 0
IV.CPGN.EHZ. 2018-01-25T15:17:50.47 3.0 undecidable manual Sn -6.35 0
IV.ZCCA.HNZ. 2018-01-25T15:17:48.41 3.0 undecidable manual Pg 10.12 0
IV.MILZ.HHZ. 2018-01-25T15:17:40.55 3.0 undecidable manual Pn 3.92 0
TV.SF01.EHZ. 2018-01-25T15:17:36.82 0.6 undecidable manual S 280 22.5552 96 -0.44 45
TV.SF04.EHZ. 2018-01-25T15:17:35.04 0.6 undecidable manual S 295 15.7731 99 0.11 49
IV.MCIV.HHZ. 2018-01-25T15:17:34.01 0.3 undecidable manual S 272 12.9759 100 0.04 75
IV.SACS.HHZ. 2018-01-25T15:17:33.04 0.6 undecidable manual S 36 10.0788 103 0.03 50
TV.SF01.EHZ. 2018-01-25T15:17:33.97 0.3 undecidable manual P 280 22.5552 96 0.03 74
IV.MCIV.HHZ. 2018-01-25T15:17:32.06 0.1 undecidable manual P 272 12.9759 100 0.02 100
TV.SF04.EHZ. 2018-01-25T15:17:32.81 0.3 undecidable manual P 295 15.7731 99 0.22 72
IV.SACS.HHZ. 2018-01-25T15:17:31.39 0.1 undecidable manual P 36 10.0788 103 -0.09 99
IV.MMO1.EHZ. 2018-01-25T15:17:21.26 3.0 undecidable manual S -8.47 0
IV.T1299.EHZ. 2018-01-25T15:17:19.39 3.0 undecidable manual S -4.43 0
IV.RM33.EHZ. 2018-01-25T15:17:17.34 3.0 undecidable manual Sn -4.13 0
IV.PP3.EHZ. 2018-01-25T15:17:16.59 3.0 positive manual P 1.04 0
OB.GAVE.EHZ. 2018-01-25T15:17:09.04 3.0 negative manual P 0.37 0
IV.CIGN.HHZ. 2018-01-25T15:17:03.38 3.0 undecidable manual P 3.4 0
IV.ARRO.EHZ. 2018-01-25T15:17:00.86 3.0 undecidable manual P -7.26 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:0.1 0.000025846405 0.2816 AML other m 2018-01-25T15:17:34.63
IV.SACS.HHE. ML:0.0 0.000021762 0.1408 AML other m 2018-01-25T15:17:34.69
IV.MCIV.HHN. ML:0.2 0.000019611645 0.3712 AML other m 2018-01-25T15:17:32.69
IV.MCIV.HHE. ML:0.2 0.00002159094 0.3328 AML other m 2018-01-25T15:17:33.91
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