Earthquake with magnitude of ML 1.1 on date 03-02-2018 and time 20:08:13 (Italy) in region 4 km SW Prali (TO)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Prali (TO), on

  • 03-02-2018 19:08:13 (UTC)
  • 03-02-2018 20:08:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8680, 7.0180 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Prali TO 4 246 246
Salza di Pinerolo TO 9 75 321
Bobbio Pellice TO 10 563 884
Massello TO 11 51 935
Perrero TO 11 659 1594
Villar Pellice TO 13 1076 2670
Sauze di Cesana TO 15 244 2914
Sestriere TO 15 929 3843
Pramollo TO 16 258 4101
Pomaretto TO 16 1009 5110
RorĂ  TO 17 257 5367
Angrogna TO 17 889 6256
Perosa Argentina TO 17 3285 9541
Torre Pellice TO 17 4551 14092
Roure TO 17 848 14940
Pragelato TO 18 776 15716
Inverso Pinasca TO 18 730 16446
San Germano Chisone TO 18 1854 18300
Pinasca TO 19 3051 21351
Fenestrelle TO 19 544 21895
Luserna San Giovanni TO 19 7395 29290
Villar Perosa TO 19 4092 33382
Lusernetta TO 20 506 33888
Porte TO 20 1083 34971
Prarostino TO 20 1273 36244
Cesana Torinese TO 20 967 37211

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km W of Moncalieri (57294 inhabitants)
57 Km W of Torino (890529 inhabitants)
68 Km NW of Cuneo (56081 inhabitants)
94 Km W of Asti (76202 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
Reviewed
Rev100
ML 1.1 2018-02-03
19:08:13
44.868 7.0185 11 2018-02-03
19:15:53
Sala Sismica INGV-Roma 53656751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-03 19:08:13 ± 0.16
Latitude 44.8680 ± 0.0099
Longitude 7.0185 ± 0.0114
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 53656751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1020
Semi-minor axis of confidence ellipse (meter) 547
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.59715
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 53656751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-03 19:15:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BURY.HHZ. 2018-02-03T19:08:34.99 3.0 undecidable manual P -0.06 0
GU.LSD.HHZ. 2018-02-03T19:08:33.49 0.3 undecidable manual S 8 66.2781 50 -0.34 80
GU.PZZ.HHZ. 2018-02-03T19:08:26.56 0.3 undecidable manual S 169 40.8258 50 -0.48 77
GU.RSP.HNZ. 2018-02-03T19:08:25.56 0.3 undecidable manual S 32 36.6411 50 -0.36 83
GU.LSD.HHZ. 2018-02-03T19:08:25.83 0.3 undecidable manual P 8 66.2781 50 0.52 87
MN.BNI.HHZ. 2018-02-03T19:08:24.61 0.3 undecidable manual S 307 33.6441 50 -0.52 78
GU.PZZ.HHZ. 2018-02-03T19:08:21.76 0.3 undecidable manual P 169 40.8258 50 0.37 94
GU.RSP.HNZ. 2018-02-03T19:08:21.22 0.3 undecidable manual P 32 36.6411 50 0.48 92
MN.BNI.HHZ. 2018-02-03T19:08:20.68 0.3 undecidable manual P 307 33.6441 50 0.4 95
GU.RRL.HHZ. 2018-02-03T19:08:20.83 0.3 undecidable manual S 288 18.87 50 -0.35 88
GU.BHB.HHZ. 2018-02-03T19:08:20.88 0.3 undecidable manual S 101 19.5693 50 -0.5 82
GU.BHB.HHZ. 2018-02-03T19:08:18.44 0.3 undecidable manual P 101 19.5693 50 0.32 98
GU.RRL.HHZ. 2018-02-03T19:08:18.20 0.3 undecidable manual P 288 18.87 50 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHN. ML:1.0 0.0000756 0.18 AML other m 2018-02-03T19:08:20.96
GU.RRL.HHE. ML:1.0 0.0000751 1.66 AML other m 2018-02-03T19:08:20.12
GU.BHB.HHN. ML:1.0 0.00006355 0.12 AML other m 2018-02-03T19:08:21.49
GU.BHB.HHE. ML:0.9 0.000053599999999999995 0.42 AML other m 2018-02-03T19:08:23.30
GU.PZZ.HHN. ML:1.3 0.0000686 0.92 AML other m 2018-02-03T19:08:27.59
GU.PZZ.HHE. ML:1.5 0.00010045000000000002 0.12 AML other m 2018-02-03T19:08:27.75
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