Earthquake with magnitude of ML 1.1 on date 22-08-2019 and time 23:08:50 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 22-08-2019 23:08:50 (UTC)
  • 23-08-2019 01:08:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.7940, 6.7430 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
Claviere TO 16 214 214
Cesana Torinese TO 18 967 1181
Sauze di Cesana TO 19 244 1425

Municipalities with at least 50000 inhabitants

An earthquake occurred to
78 Km W of Moncalieri (57294 inhabitants)
78 Km NW of Cuneo (56081 inhabitants)
80 Km W of Torino (890529 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 1.1 2019-08-22
23:08:50
44.7945 6.7432 11 2019-08-22
23:14:06
Sala Sismica INGV-Roma 71717711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-22 23:08:50 ± 0.23
Latitude 44.7945 ± 0.0108
Longitude 6.7432 ± 0.0127
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71717711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1268
Semi-minor axis of confidence ellipse (meter) 865
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 26
Circular confidence region, given by single value of horizontal uncertainty (meter) 1270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.13040
Epicentral distance of station farthest from the epicenter (degree) 0.62413
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:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 71717711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-22 23:14:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RD.ORIF.BHE. 2019-08-22T23:09:10.94 0.6 undecidable manual S 282 69.2751 50 -0.4 43
GU.BHB.HHZ. 2019-08-22T23:09:03.85 0.3 undecidable manual S 84 41.2254 50 0 74
GU.PZZ.HHZ. 2019-08-22T23:09:03.95 0.6 undecidable manual S 137 43.4232 50 -0.49 44
RD.ORIF.BHE. 2019-08-22T23:09:02.96 0.3 undecidable manual P 282 69.2751 50 0.48 64
GU.RSP.HHZ. 2019-08-22T23:09:01.15 0.3 undecidable manual P 46 56.6988 50 0.6 62
MN.BNI.HHE. 2019-08-22T23:09:00.07 0.6 undecidable manual S 350 29.0487 50 -0.53 45
GU.PZZ.HHZ. 2019-08-22T23:08:58.34 0.1 undecidable manual P 137 43.4232 50 -0.15 95
GU.BHB.HHZ. 2019-08-22T23:08:58.35 0.3 undecidable manual P 84 41.2254 50 0.2 71
MN.BNI.HHE. 2019-08-22T23:08:56.38 0.1 undecidable manual P 350 29.0487 50 0.11 99
GU.RRL.HHZ. 2019-08-22T23:08:56.36 0.1 undecidable manual S 15 14.4744 127 -0.31 97
GU.RRL.HHZ. 2019-08-22T23:08:54.18 0.1 undecidable manual P 15 14.4744 127 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHN. ML:1.0 0.00009325 0.4 AML other m 2019-08-22T23:08:56.61
GU.RRL.HHE. ML:1.0 0.00009335 0.62 AML other m 2019-08-22T23:08:56.73
GU.PZZ.HHN. ML:1.1 0.00004075 0.6 AML other m 2019-08-22T23:09:04.61
GU.PZZ.HHE. ML:1.2 0.000043450000000000006 0.6 AML other m 2019-08-22T23:09:05.21
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