Earthquake with magnitude of ML 1.1 on date 18-09-2019 and time 19:20:17 (Italy) in region 6 km W Salza di Pinerolo (TO)

A magnitude ML 1.1 earthquake occured in region: 6 km W Salza di Pinerolo (TO), on

  • 18-09-2019 17:20:17 (UTC)
  • 18-09-2019 19:20:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.94, 6.98 at 12 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
Salza di Pinerolo TO 6 75 75
Massello TO 7 51 126
Prali TO 8 246 372
Sestriere TO 8 929 1301
Pragelato TO 9 776 2077
Sauze di Cesana TO 9 244 2321
Perrero TO 11 659 2980
Fenestrelle TO 12 544 3524
Usseaux TO 13 186 3710
Sauze d'Oulx TO 14 1109 4819
Roure TO 14 848 5667
Cesana Torinese TO 15 967 6634
Oulx TO 16 3307 9941
Pomaretto TO 16 1009 10950
Salbertrand TO 17 596 11546
Perosa Argentina TO 17 3285 14831
Claviere TO 18 214 15045
Bobbio Pellice TO 18 563 15608
Exilles TO 18 273 15881
Pramollo TO 19 258 16139
Inverso Pinasca TO 19 730 16869
Pinasca TO 20 3051 19920

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km W of Moncalieri (57294 inhabitants)
57 Km W of Torino (890529 inhabitants)
76 Km NW of Cuneo (56081 inhabitants)
97 Km W of Asti (76202 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.1 2019-09-18
17:20:17
44.94 6.98 12 2019-09-18
17:28:39
Sala Sismica INGV-Roma 72529001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-18 17:20:17 ± 0.18
Latitude 44.94 ± 0.01
Longitude 6.98 ± 0.01
Depth (km) 12 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72529001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 919
Semi-minor axis of confidence ellipse (meter) 185
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
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) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.77791
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 10
Type of magnitude ML
Reference to an origin 72529001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-18 17:28:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.ENR.HHZ. 2019-09-18T17:20:42.52 0.6 undecidable manual S 156 0.7779 90 -0.52 37
GU.LSD.HHZ. 2019-09-18T17:20:35.57 0.6 undecidable manual S 12 0.5324 91 -0.21 43
GU.ROTM.HHZ. 2019-09-18T17:20:33.25 3.0 undecidable manual P 0
GU.ENR.HHZ. 2019-09-18T17:20:32.87 0.1 undecidable manual P 156 0.7779 90 0.6 82
GU.PZZ.HHZ. 2019-09-18T17:20:32.57 0.3 undecidable manual S 167 0.4425 91 -0.54 60
GU.LSD.HHZ. 2019-09-18T17:20:28.52 0.1 undecidable manual P 12 0.5324 91 0.44 89
GU.RSP.HHZ. 2019-09-18T17:20:27.97 0.3 undecidable manual S 44 0.2914 92 -0.67 55
GU.PZZ.HHZ. 2019-09-18T17:20:26.54 0.1 undecidable manual P 167 0.4425 91 0.01 93
MN.BNI.HHZ. 2019-09-18T17:20:26.84 0.3 undecidable manual S 298 0.241 93 -0.32 69
GU.RRL.HHZ. 2019-09-18T17:20:24.01 0.1 undecidable manual S 263 0.134 104 0 100
MN.BNI.HHZ. 2019-09-18T17:20:23.11 0.1 undecidable manual P 298 0.241 93 0.01 98
GU.RSP.HHZ. 2019-09-18T17:20:23.95 0.1 undecidable manual P 44 0.2914 92 0 94
GU.RRL.HHZ. 2019-09-18T17:20:21.66 0.6 undecidable manual P 263 0.134 104 0.38 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHE. ML:0.9 6.885E-5 0.1 AML other m 2019-09-18T17:20:24.05
GU.RRL.HHN. ML:1.2 0.0001295 0.24 AML other m 2019-09-18T17:20:24.02
GU.RSP.HHN. ML:1.1 4.84E-5 0.72 AML other m 2019-09-18T17:20:28.02
GU.RSP.HHE. ML:1.1 5.09E-5 0.52 AML other m 2019-09-18T17:20:28.39
GU.PZZ.HHE. ML:1.7 0.0001205 0.16 AML other m 2019-09-18T17:20:33.64
GU.PZZ.HHN. ML:1.7 0.0001255 0.16 AML other m 2019-09-18T17:20:33.78
GU.LSD.HHE. ML:1 2.025E-5 1.4 AML other m 2019-09-18T17:20:35.73
GU.LSD.HHN. ML:0.9 1.53E-5 1.5 AML other m 2019-09-18T17:20:37.07
GU.ENR.HHE. ML:1.1 1.665E-5 0.92 AML other m 2019-09-18T17:20:44.95
GU.ENR.HHN. ML:1.1 1.43E-5 1.86 AML other m 2019-09-18T17:20:44.95
MN.BNI.HNN. ML:0 5.872085E-6 0.64 AML other m 2019-09-18T17:20:26.63
MN.BNI.HHE. ML:0.3 1.0922453E-5 0.0512 AML other m 2019-09-18T17:20:27.07
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