INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.7 on date 15-02-2019 and time 16:38:46 (UTC) in region 1 km S Vado Ligure (SV)

A magnitude ML 0.7 earthquake occured in region: 1 km S Vado Ligure (SV), on

  • 15-02-2019 16:38:46 (UTC)
  • 15-02-2019 17:38:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.26, 8.44 at 2 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
Vado Ligure SV 1 8336 8336
Bergeggi SV 2 1129 9465
Quiliano SV 4 7232 16697
Spotorno SV 4 3803 20500
Savona SV 6 61345 81845
Noli SV 7 2736 84581
Vezzi Portio SV 7 809 85390
Albissola Marina SV 9 5487 90877
Orco Feglino SV 10 890 91767
Albisola Superiore SV 10 10163 101930
Altare SV 11 2108 104038
Mallare SV 12 1146 105184
Celle Ligure SV 12 5237 110421
Finale Ligure SV 13 11711 122132
Calice Ligure SV 13 1730 123862
Rialto SV 14 564 124426
Pallare SV 15 923 125349
Varazze SV 16 13251 138600
Stella SV 16 3009 141609
Carcare SV 16 5587 147196
Borgio Verezzi SV 16 2205 149401
Bormida SV 16 387 149788
Tovo San Giacomo SV 17 2582 152370
Magliolo SV 17 974 153344
Pietra Ligure SV 18 8992 162336
Giustenice SV 18 977 163313
Plodio SV 19 650 163963
Osiglia SV 19 444 164407
Cosseria SV 20 1105 165512
Cairo Montenotte SV 20 13269 178781

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SW of Savona (61345 inhabitants)
43 Km W of Genova (586655 inhabitants)
72 Km NE of Sanremo (54807 inhabitants)
72 Km E of Cuneo (56081 inhabitants)
73 Km S of Asti (76202 inhabitants)
74 Km S of Alessandria (93943 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 0.7 2019-02-15
16:38:46
44.26 8.44 2 2019-02-15
16:50:32
Sala Sismica INGV-Roma 65580241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-15 16:38:46 ± 0.3
Latitude 44.26 ± 0.01
Longitude 8.44 ± 0.02
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65580241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1680
Semi-minor axis of confidence ellipse (meter) 920
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 1680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 224
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.88673
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 65580241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-15 16:50:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIR.HHZ. 2019-02-15T16:39:26.87 3.0 undecidable manual Pg 3.45 0
GU.SATI.HHZ. 2019-02-15T16:39:20.41 3.0 positive manual Pg 5.83 0
IV.EUCT.HNZ. 2019-02-15T16:39:18.79 0.6 undecidable manual S -3.45 1.18
IV.MONC.HHZ. 2019-02-15T16:39:04.04 0.6 negative manual P 336 0.8867 50 0.25 56
GU.GBOS.HHZ. 2019-02-15T16:38:55.63 1.0 undecidable manual P 267 0.4281 93 0.03 32
GU.RORO.HHZ. 2019-02-15T16:38:53.26 0.6 undecidable manual P 240 0.3067 94 0.37 61
GU.PCP.HHZ. 2019-02-15T16:38:52.02 0.6 undecidable manual P 16 0.2869 94 -0.45 61
GU.CANO.HHZ. 2019-02-15T16:38:51.48 0.6 undecidable manual S 248 0.1538 97 -0.57 60
IV.QLNO.HHZ. 2019-02-15T16:38:49.63 0.6 undecidable manual S 312 0.0881 102 0.08 68
GU.CANO.HHZ. 2019-02-15T16:38:49.64 0.3 undecidable manual P 248 0.1538 97 0.12 100
IV.QLNO.HHZ. 2019-02-15T16:38:48.29 1.0 undecidable manual P 312 0.0881 102 0.21 33
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHE. ML:0.8 2.53E-5 0.52 AML other m 2019-02-15T16:38:54.25
GU.CANO.HHN. ML:0.6 4.025E-5 0.44 AML other m 2019-02-15T16:38:54.42
GU.CANO.HHE. ML:0.6 3.83E-5 1.06 AML other m 2019-02-15T16:38:54.33
GU.RORO.HHN. ML:0.7 2.235E-5 0.46 AML other m 2019-02-15T16:38:55.84
IV.EUCT.HNN. ML:3 0.000853 0.06 AML other m 2019-02-15T16:39:24.46
IV.EUCT.HNE. ML:3 0.000703 0.24 AML other m 2019-02-15T16:39:24.68
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