Earthquake with magnitude of ML 1.0 on date 24-08-2019 and time 13:20:40 (Italy) in region 2 km W Torre Pellice (TO)

A magnitude ML 1.0 earthquake occured in region: 2 km W Torre Pellice (TO), on

  • 24-08-2019 11:20:40 (UTC)
  • 24-08-2019 13:20:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.82, 7.2 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
Torre Pellice TO 2 4551 4551
Angrogna TO 3 889 5440
RorĂ  TO 3 257 5697
Luserna San Giovanni TO 4 7395 13092
Villar Pellice TO 4 1076 14168
Lusernetta TO 5 506 14674
Bobbio Pellice TO 7 563 15237
Prarostino TO 7 1273 16510
Bibiana TO 8 3442 19952
Bricherasio TO 8 4616 24568
Porte TO 9 1083 25651
San Secondo di Pinerolo TO 9 3575 29226
San Germano Chisone TO 9 1854 31080
Pramollo TO 9 258 31338
Campiglione Fenile TO 10 1390 32728
Bagnolo Piemonte CN 11 6024 38752
Villar Perosa TO 12 4092 42844
Osasco TO 12 1141 43985
Pinerolo TO 13 35808 79793
San Pietro Val Lemina TO 13 1448 81241
Pinasca TO 14 3051 84292
Garzigliana TO 14 572 84864
Inverso Pinasca TO 14 730 85594
Crissolo CN 14 168 85762
Prali TO 14 246 86008
Cavour TO 14 5545 91553
Perrero TO 15 659 92212
Barge CN 15 7774 99986
Ostana CN 15 83 100069
Pomaretto TO 15 1009 101078
Perosa Argentina TO 15 3285 104363
Roletto TO 15 2009 106372
Macello TO 16 1229 107601
Oncino CN 16 76 107677
Paesana CN 16 2784 110461
Cantalupa TO 17 2553 113014
Frossasco TO 17 2864 115878
Salza di Pinerolo TO 18 75 115953
Buriasco TO 18 1410 117363
Massello TO 19 51 117414

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Moncalieri (57294 inhabitants)
47 Km SW of Torino (890529 inhabitants)
55 Km NW of Cuneo (56081 inhabitants)
80 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 1.0 2019-08-24
11:20:40
44.82 7.2 11 2019-08-24
11:24:20
Sala Sismica INGV-Roma 71762371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-24 11:20:40 ± 0.26
Latitude 44.82 ± 0.01
Longitude 7.20 ± 0.02
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71762371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1669
Semi-minor axis of confidence ellipse (meter) 780
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 1670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
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) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.63762
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 71762371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-24 11:24:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.LSD.HHZ. 2019-08-24T11:20:53.01 0.6 undecidable manual P 356 0.6376 90 0.42 42
GU.PZZ.HHZ. 2019-08-24T11:20:52.37 0.1 undecidable manual S 191 0.322 90 0.1 96
GU.RSP.HHZ. 2019-08-24T11:20:51.81 0.1 undecidable manual S 8 0.3274 90 -0.62 85
GU.ENR.HHZ. 2019-08-24T11:20:51.72 0.1 undecidable manual P 165 0.616 90 -0.51 82
GU.RRL.HHZ. 2019-08-24T11:20:51.68 0.1 undecidable manual S 289 0.3067 90 -0.14 96
GU.RSP.HHZ. 2019-08-24T11:20:47.19 0.6 negative manual P 8 0.3274 90 -0.1 48
GU.RRL.HHZ. 2019-08-24T11:20:47.44 0.3 negative manual P 289 0.3067 90 0.5 65
GU.PZZ.HHZ. 2019-08-24T11:20:47.58 0.6 undecidable manual P 191 0.322 90 0.38 45
GU.BHB.HHZ. 2019-08-24T11:20:44.65 0.1 undecidable manual S 75 0.045 148 0.13 100
GU.BHB.HHZ. 2019-08-24T11:20:43.07 0.6 undecidable manual P 75 0.045 148 0.35 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:1 0.0001565 0.16 AML other m 2019-08-24T11:20:44.78
GU.BHB.HHE. ML:1.2 0.000235 0.16 AML other m 2019-08-24T11:20:44.76
GU.RSP.HHE. ML:0.7 2.24E-5 0.26 AML other m 2019-08-24T11:20:52.27
GU.RSP.HHN. ML:0.8 2.69E-5 0.82 AML other m 2019-08-24T11:20:52.27
GU.PZZ.HHN. ML:1.1 4.485E-5 0.66 AML other m 2019-08-24T11:20:52.50
GU.PZZ.HHE. ML:1.2 6.02E-5 0.14 AML other m 2019-08-24T11:20:53.52
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