Earthquake with magnitude of ML 1.0 on date 08-04-2019 and time 04:11:48 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.0 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 08-04-2019 02:11:48 (UTC)
  • 08-04-2019 04:11:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.02, 6.58 at 9 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
Bardonecchia TO 12 3215 3215
Claviere TO 16 214 3429
Cesana Torinese TO 18 967 4396
Oulx TO 20 3307 7703

Municipalities with at least 50000 inhabitants

An earthquake occurred to
87 Km W of Torino (890529 inhabitants)
87 Km W of Moncalieri (57294 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 1.0 2019-04-08
45.02 6.58 9 2019-04-08
Sala Sismica INGV-Roma 67358031
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2019-04-08 02:11:48 ± 0.16
Latitude 45.02 ± 0.01
Longitude 6.58 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 67358031


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1617
Semi-minor axis of confidence ellipse (meter) 800
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 14
Circular confidence region, given by single value of horizontal uncertainty (meter) 1620
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.51441
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information


Field Value
Value 1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 67358031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-08 02:16:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2019-04-08T02:12:17.97 3.0 negative manual Pg 3.83 0
GU.BHB.HHZ. 2019-04-08T02:12:07.06 0.1 undecidable manual S 111 0.5144 50 -0.09 95
RD.ORIF.BHZ. 2019-04-08T02:12:06.43 0.1 undecidable manual S 259 0.5072 50 -0.49 87
RD.ORIF.BHZ. 2019-04-08T02:11:59.80 0.1 undecidable manual P 259 0.5072 50 0.48 87
GU.RSP.HHZ. 2019-04-08T02:11:59.21 0.1 positive manual P 75 0.4982 50 0.04 96
GU.BHB.HHZ. 2019-04-08T02:11:59.70 1.0 undecidable manual P 111 0.5144 50 0.25 23
GU.RRL.HHZ. 2019-04-08T02:11:56.25 0.1 undecidable manual S 124 0.1763 114 -0.15 100
GU.RRL.HHZ. 2019-04-08T02:11:53.56 0.3 undecidable manual P 124 0.1763 114 0.31 72
MN.BNI.HHZ. 2019-04-08T02:11:52.84 0.1 undecidable manual S 63 0.0746 137 -0.32 98
MN.BNI.HHZ. 2019-04-08T02:11:51.62 0.1 negative manual P 63 0.0746 137 0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.BNI.HHN. ML:1.1 0.0002025 0.18 AML other m 2019-04-08T02:11:52.84
MN.BNI.HNN. ML:1 0.000156 0.18 AML other m 2019-04-08T02:11:52.85
MN.BNI.HNE. ML:1.3 0.000325 0.24 AML other m 2019-04-08T02:11:52.85
MN.BNI.HHE. ML:1.4 0.00043 0.26 AML other m 2019-04-08T02:11:52.84
GU.RRL.HHN. ML:0.7 3.47E-5 0.12 AML other m 2019-04-08T02:11:56.38
GU.RRL.HHE. ML:0.7 3.83E-5 0.5 AML other m 2019-04-08T02:11:57.08
GU.BHB.HHE. ML:1 1.98E-5 0.42 AML other m 2019-04-08T02:12:04.02
GU.BHB.HHN. ML:1.1 2.375E-5 0.42 AML other m 2019-04-08T02:12:15.22
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