ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.3 on date 16-03-2019 and time 06:36:29 (UTC) in region Costa Ligure centro occidentale (Savona)

A magnitude ML 1.3 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 16-03-2019 06:36:29 (UTC)
  • 16-03-2019 07:36:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.14, 8.57 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
Noli SV 15 2736 2736
Spotorno SV 16 3803 6539
Bergeggi SV 16 1129 7668
Vado Ligure SV 18 8336 16004
Finale Ligure SV 19 11711 27715
Vezzi Portio SV 20 809 28524

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km SE of Savona (61345 inhabitants)
42 Km SW of Genova (586655 inhabitants)
72 Km E of Sanremo (54807 inhabitants)
86 Km E of Cuneo (56081 inhabitants)
87 Km S of Alessandria (93943 inhabitants)
90 Km SE of Asti (76202 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 1.3 2019-03-16
06:36:29
44.14 8.57 9 2019-03-16
06:46:25
Sala Sismica INGV-Roma 66581211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-16 06:36:29 ± 0.26
Latitude 44.14 ± 0.01
Longitude 8.57 ± 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 66581211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1357
Semi-minor axis of confidence ellipse (meter) 643
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 1360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.16642
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 66581211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-16 06:46:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2019-03-16T06:38:21.44 3.0 undecidable manual Sg 0.92 0
IV.MCRV.HHZ. 2019-03-16T06:38:16.30 3.0 undecidable manual Pg 11.98 0
IV.SLCN.HHZ. 2019-03-16T06:38:07.20 3.0 undecidable manual Pn -4.29 0
IV.VITU.HHZ. 2019-03-16T06:38:07.62 3.0 negative manual Pg 11.09 0
IV.BORM.HNZ. 2019-03-16T06:37:54.54 3.0 undecidable manual Sg 5.2 0
IT.VNF1.HGZ. 2019-03-16T06:37:54.15 3.0 positive manual Pg 4.89 0
IV.FIR.HHZ. 2019-03-16T06:37:32.38 3.0 undecidable manual Sg -6.17 0
IV.MF5.EHZ. 2019-03-16T06:37:23.47 3.0 undecidable manual Pn -9.99 0
IV.CTI.HHZ. 2019-03-16T06:37:22.53 3.0 undecidable manual Pg 2.55 0
GU.BHB.HHZ. 2019-03-16T06:36:52.20 0.6 undecidable manual P 307 1.1664 50 0.82 33
IV.EUCT.HNZ. 2019-03-16T06:36:50.26 0.3 undecidable manual P 20 1.1367 50 -0.62 53
GU.GBOS.HHZ. 2019-03-16T06:36:48.32 0.3 undecidable manual S 282 0.5369 50 -0.26 67
GU.STV.HHZ. 2019-03-16T06:36:47.72 0.3 undecidable manual P 277 0.9011 50 0.88 50
GU.ENR.HHZ. 2019-03-16T06:36:45.87 0.3 undecidable manual P 277 0.8319 50 0.22 64
GU.PCP.HHZ. 2019-03-16T06:36:44.92 0.3 undecidable manual S 357 0.4047 50 0.24 69
GU.RORO.HHZ. 2019-03-16T06:36:43.13 0.3 undecidable manual S 266 0.3651 50 -0.38 68
IV.MSSA.HHZ. 2019-03-16T06:36:43.05 0.3 undecidable manual P 75 0.6988 50 -0.33 64
GU.GBOS.HHZ. 2019-03-16T06:36:40.72 0.1 undecidable manual P 282 0.5369 50 0.12 92
IV.QLNO.HHZ. 2019-03-16T06:36:39.51 0.3 undecidable manual S 319 0.2482 107 -0.22 72
GU.CANO.HHZ. 2019-03-16T06:36:39.85 0.1 undecidable manual S 286 0.2518 107 0 100
GU.RNCA.HHZ. 2019-03-16T06:36:39.12 0.3 undecidable manual P 39 0.429 50 0.35 67
GU.PCP.HHZ. 2019-03-16T06:36:38.20 0.3 undecidable manual P 357 0.4047 50 -0.15 71
GU.RORO.HHZ. 2019-03-16T06:36:37.41 0.3 undecidable manual P 266 0.3651 50 -0.26 70
GU.CANO.HHZ. 2019-03-16T06:36:35.62 0.1 undecidable manual P 286 0.2518 107 0.06 99
IV.QLNO.HHZ. 2019-03-16T06:36:35.48 0.3 undecidable manual P 319 0.2482 107 -0.01 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHE. ML:1.3 0.000112975925 0.2176 AML other m 2019-03-16T06:36:39.75
IV.QLNO.HHN. ML:1.2 9.4602725E-5 0.3008 AML other m 2019-03-16T06:36:39.62
GU.CANO.HHE. ML:1.3 0.000107565825 0.16 AML other m 2019-03-16T06:36:40.33
GU.CANO.HHN. ML:1.3 9.869715E-5 0.2016 AML other m 2019-03-16T06:36:40.81
GU.RORO.HHE. ML:1.6 0.00012010465 0.0992 AML other m 2019-03-16T06:36:44.16
GU.RORO.HHN. ML:1.5 0.00010824395 0.0992 AML other m 2019-03-16T06:36:44.14
GU.PCP.HHE. ML:1.1 3.376027E-5 0.2816 AML other m 2019-03-16T06:36:47.07
GU.PCP.HHN. ML:1.1 3.3498085E-5 0.2432 AML other m 2019-03-16T06:36:48.89
GU.RNCA.HHE. ML:1 3.2037825E-5 0.1792 AML other m 2019-03-16T06:36:48.29
GU.RNCA.HHN. ML:1.1 3.458452E-5 0.2208 AML other m 2019-03-16T06:36:48.53
GU.ENR.HHE. ML:1.4 2.2650705E-5 0.0608 AML other m 2019-03-16T06:36:59.91
GU.ENR.HHN. ML:1.5 3.602286E-5 0.1184 AML other m 2019-03-16T06:36:58.57
IV.EUCT.HNE. ML:2.9 0.0005473646 0.0416 AML other m 2019-03-16T06:36:55.11
IV.EUCT.HNN. ML:2.9 0.0005643838 0.0608 AML other m 2019-03-16T06:36:55.21
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