Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 26-12-2019 and time 18:19:16 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.2 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 26-12-2019 17:19:16 (UTC)
  • 26-12-2019 18:19:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1720, 6.9880 at 14 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pietraporzio CN 20 77 77
Sambuco CN 20 92 169

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km W of Cuneo (56081 inhabitants)
75 Km NW of Sanremo (54807 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 1.2 2019-12-26
17:19:16		 44.1715 6.9878 15 2019-12-26
17:27:06		 Sala Sismica INGV-Roma 74998311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-26 17:19:16 ± 0.17
Latitude 44.1715 ± 0.0072
Longitude 6.9878 ± 0.0125
Depth (km) 15 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74998311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1086
Semi-minor axis of confidence ellipse (meter) 471
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.25361
Epicentral distance of station farthest from the epicenter (degree) 1.08638
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 74998311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-26 17:27:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RORO.HHE. 2019-12-26T17:19:42.48 0.1 undecidable manual S 94 86.0472 93 0.4 98
GU.RRL.HHE. 2019-12-26T17:19:41.77 0.3 undecidable manual S 349 84.5487 93 0.09 70
GU.BHB.HHZ. 2019-12-26T17:19:39.39 0.3 undecidable manual S 16 76.7676 93 -0.21 64
IV.IMI.HHZ. 2019-12-26T17:19:39.80 0.3 undecidable manual S 112 77.7666 93 -0.07 66
GU.GBOS.HHZ. 2019-12-26T17:19:37.44 0.3 undecidable manual S 83 68.1762 94 0.13 72
RD.ORIF.BHE. 2019-12-26T17:19:37.44 0.6 undecidable manual P 314 120.5904 92 0.81 44
GU.BURY.HHE. 2019-12-26T17:19:35.41 0.3 undecidable manual S 133 62.6928 94 -0.43 59
GU.RSP.HHE. 2019-12-26T17:19:35.80 0.3 undecidable manual P 11 110.5005 92 0.71 68
FR.SAOF.HHE.00 2019-12-26T17:19:31.76 0.3 undecidable manual S 114 49.5171 95 -0.58 56
GU.RORO.HHE. 2019-12-26T17:19:31.68 0.1 undecidable manual P 94 86.0472 93 0.35 98
GU.RRL.HHE. 2019-12-26T17:19:30.92 0.1 undecidable manual P 349 84.5487 93 -0.17 86
IV.IMI.HHZ. 2019-12-26T17:19:30.20 0.1 undecidable manual P 112 77.7666 93 0.15 95
GU.BHB.HHZ. 2019-12-26T17:19:29.91 0.1 undecidable manual P 16 76.7676 93 0.02 93
GU.GBOS.HHZ. 2019-12-26T17:19:28.88 0.1 undecidable manual P 83 68.1762 94 0.31 100
GU.PZZ.HHZ. 2019-12-26T17:19:28.64 0.1 undecidable manual S 15 38.5281 98 -0.79 71
GU.BURY.HHE. 2019-12-26T17:19:27.75 0.3 undecidable manual P 133 62.6928 94 0.03 71
GU.STV.HHZ. 2019-12-26T17:19:26.32 0.1 undecidable manual S 73 28.1496 102 -0.37 87
FR.SAOF.HHE.00 2019-12-26T17:19:25.51 0.1 undecidable manual P 114 49.5171 95 -0.19 90
GU.PZZ.HHZ. 2019-12-26T17:19:23.78 0.1 undecidable manual P 15 38.5281 98 -0.24 91
GU.STV.HHZ. 2019-12-26T17:19:22.32 0.1 undecidable manual P 73 28.1496 102 -0.11 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:1.1 0.000057 0.22 AML other m 2019-12-26T17:19:26.46
GU.STV.HHN. ML:1.1 0.00006520000000000001 0.26 AML other m 2019-12-26T17:19:26.48
GU.GBOS.HHE. ML:1.4 0.000040731325 0.1152 AML other m 2019-12-26T17:19:39.05
GU.GBOS.HHN. ML:1.2 0.00002735203 0.1408 AML other m 2019-12-26T17:19:37.00
IV.IMI.HHE. ML:1.4 0.00003474785 0.1792 AML other m 2019-12-26T17:19:46.62
IV.IMI.HHN. ML:1.3 0.00003117692 0.0896 AML other m 2019-12-26T17:19:47.07
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