Earthquake with magnitude of ML 0.8 on date 31-08-2019 and time 00:02:37 (Italy) in region 1 km NE Cesana Torinese (TO)

A magnitude ML 0.8 earthquake occured in region: 1 km NE Cesana Torinese (TO), on

  • 30-08-2019 22:02:37 (UTC)
  • 31-08-2019 00:02:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.9600, 6.7990 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 1 967 967
Claviere TO 4 214 1181
Sauze di Cesana TO 5 244 1425
Sestriere TO 6 929 2354
Oulx TO 9 3307 5661
Sauze d'Oulx TO 9 1109 6770
Pragelato TO 13 776 7546
Salbertrand TO 14 596 8142
Bardonecchia TO 15 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)
87 Km NW of Cuneo (56081 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
Bulletin
Rev1000
ML 0.8 2019-08-30
22:02:37
44.9597 6.7988 10 2019-11-13
14:31:03
Bollettino Sismico Italiano INGV 72832351
Reviewed
Rev100
ML 0.8 2019-08-30
22:02:36
44.9543 6.7953 11 2019-08-30
22:06:36
Sala Sismica INGV-Roma 71950041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-30 22:02:37 ± 0.33
Latitude 44.9597 ± 0.0243
Longitude 6.7988 ± 0.0521
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72832351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4780
Semi-minor axis of confidence ellipse (meter) 1192
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 4780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
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) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.37951
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 72832351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-27 15:34:24

ML:0.8

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(km) Takeoff_angle Residual Weight
GU.RSP.HHZ. 2019-08-30T22:02:50.80 0.6 undecidable manual S 60 42.1245 50 -0.11 47
GU.BHB.HHZ. 2019-08-30T22:02:49.28 0.6 undecidable manual S 111 39.0276 50 -0.8 39
GU.RSP.HHZ. 2019-08-30T22:02:45.44 0.1 undecidable manual P 60 42.1245 50 0.38 90
GU.BHB.HHZ. 2019-08-30T22:02:44.61 0.1 undecidable manual P 111 39.0276 50 0.03 97
MN.BNI.HHZ. 2019-08-30T22:02:42.72 0.3 undecidable manual S 317 13.9749 127 -0.38 71
MN.BNI.HHZ. 2019-08-30T22:02:40.64 0.1 undecidable manual P 317 13.9749 127 0.1 100
GU.RRL.HHZ. 2019-08-30T22:02:40.80 0.3 undecidable manual S 188 4.3956 157 -0.17 75
GU.RRL.HHZ. 2019-08-30T22:02:39.59 0.1 undecidable manual P 188 4.3956 157 0.28 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHN. ML:0.7 0.00008765 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
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