Earthquake with magnitude of ML 0.8 on date 31-08-2019 and time 00:02:36 (Italy) in region Cesana Torinese (TO)

A magnitude ML 0.8 earthquake occured in region: Cesana Torinese (TO), on

  • 30-08-2019 22:02:36 (UTC)
  • 31-08-2019 00:02:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.95, 6.8 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
Cesana Torinese TO 0 967 967
Claviere TO 4 214 1181
Sauze di Cesana TO 5 244 1425
Sestriere TO 7 929 2354
Oulx TO 9 3307 5661
Sauze d'Oulx TO 10 1109 6770
Pragelato TO 14 776 7546
Salbertrand TO 15 596 8142
Bardonecchia TO 16 3215 11357
Exilles TO 19 273 11630

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km W of Moncalieri (57294 inhabitants)
71 Km W of Torino (890529 inhabitants)
86 Km NW of Cuneo (56081 inhabitants)
Recent and historical Seismicity
Seismic hazard
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 ( 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 0.8 2019-08-30
44.95 6.8 11 2019-08-30
Sala Sismica INGV-Roma 71950041
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2019-08-30 22:02:36 ± 0.37
Latitude 44.95 ± 0.02
Longitude 6.80 ± 0.05
Depth (km) 11 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71950041


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4391
Semi-minor axis of confidence ellipse (meter) 1224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 4390
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.38401
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information


Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 71950041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-30 22:06:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RSP.HHZ. 2019-08-30T22:02:50.86 0.1 undecidable manual S 60 0.384 50 0 95
GU.BHB.HHZ. 2019-08-30T22:02:49.31 0.1 undecidable manual S 110 0.3516 50 -0.6 83
GU.RSP.HHZ. 2019-08-30T22:02:45.44 0.1 undecidable manual P 60 0.384 50 0.46 86
GU.BHB.HHZ. 2019-08-30T22:02:44.61 0.1 undecidable manual P 110 0.3516 50 0.18 92
MN.BNI.HHZ. 2019-08-30T22:02:42.73 0.1 undecidable manual S 320 0.1277 127 -0.39 92
MN.BNI.HHZ. 2019-08-30T22:02:40.64 0.1 undecidable manual P 320 0.1277 127 0.14 97
GU.RRL.HHZ. 2019-08-30T22:02:40.78 0.1 undecidable manual S 185 0.0333 161 -0.09 100
GU.RRL.HHZ. 2019-08-30T22:02:39.57 0.3 undecidable manual P 185 0.0333 161 0.36 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHN. ML:0.7 8.765E-5 0.12 AML other m 2019-08-30T22:02:40.87
GU.RRL.HHE. ML:0.8 0.00011405 1.56 AML other m 2019-08-30T22:02:41.95
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download