INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 22-02-2019 and time 07:39:56 (Italy) in region Confine Italia Francia (FRANCIA)

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

  • 22-02-2019 06:39:56 (UTC)
  • 22-02-2019 07:39:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.7, 6.82 at 7 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
Pontechianale CN 19 179 179

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km NW of Cuneo (56081 inhabitants)
76 Km W of Moncalieri (57294 inhabitants)
79 Km SW of Torino (890529 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 2019-02-22
06:39:56
44.71 6.82 7 2019-02-22
06:45:44
Sala Sismica INGV-Roma 65777111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-22 06:39:56 ± 0.23
Latitude 44.71 ± 0.01
Longitude 6.82 ± 0.02
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65777111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1214
Semi-minor axis of confidence ellipse (meter) 699
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.21674
Epicentral distance of station farthest from the epicenter (degree) 0.86065
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 65777111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-22 06:45:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.ENR.HHZ. 2019-02-22T06:40:18.47 0.1 undecidable manual S 138 0.6412 50 -0.06 93
GU.RSP.HHZ. 2019-02-22T06:40:15.28 0.3 undecidable manual S 35 0.5423 50 -0.33 67
GU.GBOS.HHZ. 2019-02-22T06:40:13.25 0.3 undecidable manual P 122 0.8607 50 0.4 62
GU.BHB.HHZ. 2019-02-22T06:40:09.06 0.3 undecidable manual S 67 0.339 100 -0.38 69
RD.ORIF.BHZ. 2019-02-22T06:40:09.62 0.3 undecidable manual P 288 0.7015 50 -0.49 63
MN.BNI.HHZ. 2019-02-22T06:40:09.84 0.6 undecidable manual S 344 0.3615 50 -0.4 46
GU.ENR.HHZ. 2019-02-22T06:40:09.63 0.1 undecidable manual P 138 0.6412 50 0.55 83
GU.RSP.HHZ. 2019-02-22T06:40:08.05 0.1 undecidable manual P 35 0.5423 50 0.66 81
GU.PZZ.HHZ. 2019-02-22T06:40:07.06 0.1 undecidable manual S 133 0.2878 102 -0.47 91
GU.BHB.HHZ. 2019-02-22T06:40:04.09 0.1 undecidable manual P 67 0.339 100 0.26 94
MN.BNI.HHZ. 2019-02-22T06:40:03.97 0.1 undecidable manual P 344 0.3615 50 -0.33 93
GU.PZZ.HHZ. 2019-02-22T06:40:02.70 0.1 undecidable manual P 133 0.2878 102 -0.03 100
GU.RRL.HHZ. 2019-02-22T06:40:01.52 0.1 undecidable manual P 354 0.2167 106 0.34 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RSP.HHN. ML:1.2 3.72E-5 0.58 AML other m 2019-02-22T06:40:16.33
GU.PZZ.HHE. ML:1.2 7.435E-5 1.1 AML other m 2019-02-22T06:40:08.82
GU.RSP.HHE. ML:1.2 2.9575E-5 0.56 AML other m 2019-02-22T06:40:16.99
GU.RRL.HHE. ML:0.7 3.3097315E-5 1.8816 AML other m 2019-02-22T06:40:04.98
GU.RRL.HHN. ML:0.6 2.6579693E-5 0.1408 AML other m 2019-02-22T06:40:05.29
GU.PZZ.HHN. ML:1.3 9.36E-5 0.64 AML other m 2019-02-22T06:40:08.57
GU.BHB.HHE. ML:0.6 1.6909753E-5 0.0992 AML other m 2019-02-22T06:40:09.56
GU.BHB.HHN. ML:0.7 1.9212695E-5 0.0768 AML other m 2019-02-22T06:40:09.69
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