Earthquake with magnitude of ML 1.3 on date 15-02-2018 and time 14:31:47 (Italy) in region 4 km SW Prali (TO)

A magnitude ML 1.3 earthquake occured in region: 4 km SW Prali (TO), on

  • 15-02-2018 13:31:47 (UTC)
  • 15-02-2018 14:31:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8630, 7.0110 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 11 563 884
Massello TO 11 51 935
Perrero TO 12 659 1594
Villar Pellice TO 13 1076 2670
Sauze di Cesana TO 15 244 2914
Sestriere TO 15 929 3843
Pramollo TO 17 258 4101
RorĂ  TO 17 257 4358
Angrogna TO 17 889 5247
Pomaretto TO 17 1009 6256
Torre Pellice TO 18 4551 10807
Perosa Argentina TO 18 3285 14092
Pragelato TO 18 776 14868
Roure TO 18 848 15716
San Germano Chisone TO 19 1854 17570
Inverso Pinasca TO 19 730 18300
Fenestrelle TO 19 544 18844
Pinasca TO 19 3051 21895
Luserna San Giovanni TO 19 7395 29290
Cesana Torinese TO 20 967 30257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km W of Moncalieri (57294 inhabitants)
58 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 1.3 2018-02-15
13:31:47
44.863 7.0108 11 2018-02-15
13:37:04
Sala Sismica INGV-Roma 53916941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-15 13:31:47 ± 0.14
Latitude 44.8630 ± 0.0090
Longitude 7.0108 ± 0.0114
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 53916941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1100
Semi-minor axis of confidence ellipse (meter) 780
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.16637
Epicentral distance of station farthest from the epicenter (degree) 0.36333
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 53916941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-15 13:37:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RSP.HHZ. 2018-02-15T13:32:00.16 0.3 undecidable manual S 32 37.4292 50 -0.27 72
GU.PZZ.HHZ. 2018-02-15T13:32:00.73 0.3 undecidable manual S 168 40.3263 50 -0.49 68
MN.BNI.HNE. 2018-02-15T13:31:58.80 0.3 undecidable manual S 309 33.5442 50 -0.59 67
GU.PZZ.HHZ. 2018-02-15T13:31:55.96 0.1 undecidable manual P 168 40.3263 50 0.34 94
GU.RRL.HHZ. 2018-02-15T13:31:55.11 0.3 undecidable manual S 290 18.4704 50 -0.26 75
GU.RSP.HHZ. 2018-02-15T13:31:55.48 0.1 undecidable manual P 32 37.4292 50 0.32 95
GU.BHB.HHZ. 2018-02-15T13:31:55.41 0.3 undecidable manual S 99 20.0688 50 -0.4 72
MN.BNI.HNE. 2018-02-15T13:31:54.83 0.1 undecidable manual P 309 33.5442 50 0.26 97
GU.BHB.HHZ. 2018-02-15T13:31:52.71 0.1 undecidable manual P 99 20.0688 50 0.21 100
GU.RRL.HHZ. 2018-02-15T13:31:52.56 0.1 undecidable manual P 290 18.4704 50 0.31 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.2 0.000060100000000000004 0.64 AML other m 2018-02-15T13:32:00.75
GU.PZZ.HHE. ML:1.4 0.00008020000000000001 0.96 AML other m 2018-02-15T13:32:01.85
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