Earthquake with magnitude of ML 1.0 on date 07-08-2018 and time 00:18:19 (Italy) in region 7 km NW San Venanzo (TR)

A magnitude ML 1.0 earthquake occured in region: 7 km NW San Venanzo (TR), on

  • 06-08-2018 22:18:19 (UTC)
  • 07-08-2018 00:18:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9, 12.19 at 9 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
San Venanzo TR 7 2218 2218
Parrano TR 8 534 2752
Montegabbione TR 8 1216 3968
Monteleone d'Orvieto TR 12 1467 5435
Piegaro PG 12 3669 9104
Marsciano PG 12 18902 28006
Ficulle TR 13 1669 29675
Monte Castello di Vibio PG 15 1567 31242
Fratta Todina PG 15 1839 33081
Fabro TR 15 2876 35957
Panicale PG 16 5692 41649
Città della Pieve PG 16 7712 49361
Paciano PG 17 975 50336

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Perugia (166134 inhabitants)
42 Km W of Foligno (57155 inhabitants)
53 Km NW of Terni (111501 inhabitants)
54 Km N of Viterbo (67173 inhabitants)
68 Km SE of Arezzo (99543 inhabitants)
84 Km SE of Siena (53903 inhabitants)
89 Km E of Grosseto (82087 inhabitants)
96 Km NE of Civitavecchia (52991 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 1.0 2018-08-06
22:18:19
42.9 12.19 9 2019-04-24
14:51:13
Bollettino Sismico Italiano INGV 66724441
Rev 100 ML 1.0 2018-08-06
22:18:19
42.92 12.19 6 2018-08-06
22:23:50
Sala Sismica INGV-Roma 59459841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-06 22:18:19 ± 0.18
Latitude 42.90 ± 0.01
Longitude 12.19 ± 0.01
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66724441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 975
Semi-minor axis of confidence ellipse (meter) 789
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 59459841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-06 22:23:50

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 66724441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-20 16:51:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.MUGIO.HHZ. 2018-08-06T22:20:13.82 3.0 undecidable manual Sg 11.62 0
AC.SRN.HHZ. 2018-08-06T22:19:59.79 3.0 undecidable manual Pn 2.32 0
IV.ORZI.HHZ. 2018-08-06T22:19:44.97 3.0 undecidable manual Sn 1.92 0
IV.SLCN.HHZ. 2018-08-06T22:19:23.02 3.0 positive manual Pg 6.85 0
GU.GSCL.HHZ. 2018-08-06T22:19:14.44 3.0 undecidable manual Sn -1.07 0
IV.LPEL.HHZ. 2018-08-06T22:19:13.16 3.0 undecidable manual Sn -0.59 0
IV.SBPO.HNZ. 2018-08-06T22:19:00.36 3.0 undecidable manual Pg 2.7 0
IV.ATVO.HHZ. 2018-08-06T22:18:37.95 0.6 undecidable manual S 18 0.5027 50 0.52 42
IV.CAFI.HHZ. 2018-08-06T22:18:36.52 0.6 undecidable manual S 339 0.456 50 0.47 43
IV.MURB.HHZ. 2018-08-06T22:18:35.75 0.6 undecidable manual S 34 0.4335 50 0.38 45
IV.ATMI.HHZ. 2018-08-06T22:18:35.46 0.6 undecidable manual S 7 0.4335 50 0.08 47
IV.ATCC.EHZ. 2018-08-06T22:18:35.29 0.6 undecidable manual S 49 0.4308 50 -0.01 48
IV.ASSB.HHZ. 2018-08-06T22:18:33.38 0.3 undecidable manual S 68 0.3678 50 -0.05 73
IV.ATTE.HHZ. 2018-08-06T22:18:31.39 0.6 undecidable manual S 22 0.3166 50 -0.52 44
IV.MOMA.HNZ. 2018-08-06T22:18:30.86 0.6 undecidable manual S 110 0.2941 50 -0.38 46
IV.ATVO.HHZ. 2018-08-06T22:18:29.72 0.3 undecidable manual P 18 0.5027 50 -0.16 69
IV.ATCC.EHZ. 2018-08-06T22:18:28.55 0.3 undecidable manual P 49 0.4308 50 -0.1 71
IV.LATE.HHN. 2018-08-06T22:18:28.14 0.3 undecidable manual P 225 0.4065 50 -0.09 71
IV.ASSB.HHZ. 2018-08-06T22:18:28.34 0.3 undecidable manual P 68 0.3678 50 0.78 59
IV.CAFI.HHZ. 2018-08-06T22:18:28.79 0.3 undecidable manual P 339 0.456 50 -0.29 68
IV.SACS.HHZ. 2018-08-06T22:18:28.56 0.6 undecidable manual S 255 0.2149 110 0.21 48
IV.MURB.HHZ. 2018-08-06T22:18:28.55 0.1 undecidable manual P 34 0.4335 50 -0.14 94
IV.ATMI.HHZ. 2018-08-06T22:18:28.55 0.3 undecidable manual P 7 0.4335 50 -0.15 70
IV.ATTE.HHZ. 2018-08-06T22:18:26.28 0.3 undecidable manual P 22 0.3166 50 -0.41 68
IV.MOMA.HNZ. 2018-08-06T22:18:26.64 0.3 undecidable manual P 110 0.2941 50 0.34 69
IV.SACS.HHZ. 2018-08-06T22:18:24.60 0.1 undecidable manual P 255 0.2149 110 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:0.8 4.19E-5 0.22 AML other m 2018-08-06T22:18:28.82
IV.SACS.HHE. ML:0.7 3.46E-5 0.42 AML other m 2018-08-06T22:18:29.25
IV.ATTE.HHE. ML:0.9 3.73E-5 0.12 AML other m 2018-08-06T22:18:32.58
IV.ATTE.HHN. ML:1 4.23E-5 1.78 AML other m 2018-08-06T22:18:34.06
IV.ATCC.EHN. ML:0.9 1.885E-5 1.46 AML other m 2018-08-06T22:18:37.90
IV.ATCC.EHE. ML:1 2.54E-5 0.34 AML other m 2018-08-06T22:18:37.71
IV.ATMI.HHN. ML:1.3 5.535E-5 0.4 AML other m 2018-08-06T22:18:37.79
IV.MURB.HHE. ML:1.5 8.565E-5 1.14 AML other m 2018-08-06T22:18:38.27
IV.MURB.HHN. ML:1.5 9.5E-5 0.52 AML other m 2018-08-06T22:18:38.53
IV.ATMI.HHE. ML:1.2 4.645E-5 0.18 AML other m 2018-08-06T22:18:39.26
IV.ATVO.HHE. ML:0.9 1.8E-5 0.42 AML other m 2018-08-06T22:18:39.39
IV.ATVO.HHN. ML:0.6 1.22E-5 0.52 AML other m 2018-08-06T22:18:40.41
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