Earthquake (controlled explosion) with magnitude of ML 1.3 on date 28-06-2019 and time 09:34:15 (UTC) in region Costa Ligure centro occidentale (Savona)

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

  • 28-06-2019 09:34:15 (UTC)
  • 28-06-2019 11:34:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.99, 8.29 at 0 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Event type: controlled explosion.

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
Albenga SV 9 24213 24213
Alassio SV 10 10934 35147
Laigueglia SV 11 1810 36957
Andora SV 13 7552 44509
Ceriale SV 13 5561 50070
Villanova d'Albenga SV 13 2657 52727
Borghetto Santo Spirito SV 15 4948 57675
Loano SV 16 11407 69082
Cervo IM 16 1187 70269
Cisano sul Neva SV 16 2085 72354
Villa Faraldi IM 16 444 72798
Garlenda SV 16 1254 74052
San Bartolomeo al Mare IM 17 3129 77181
Toirano SV 17 2644 79825
Boissano SV 17 2492 82317
Ortovero SV 18 1586 83903
Arnasco SV 18 645 84548
Pietra Ligure SV 18 8992 93540
Balestrino SV 18 595 94135
Stellanello SV 19 808 94943
Diano San Pietro IM 19 1145 96088
Diano Marina IM 19 5977 102065
Borgio Verezzi SV 19 2205 104270
Diano Castello IM 19 2214 106484
Zuccarello SV 20 309 106793
Vendone SV 20 388 107181
Casanova Lerrone SV 20 749 107930

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SW of Savona (61345 inhabitants)
45 Km E of Sanremo (54807 inhabitants)
70 Km SW of Genova (586655 inhabitants)
74 Km SE of Cuneo (56081 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 2019-06-28
09:34:15
43.99 8.29 1 2019-06-28
09:57:21
Sala Sismica INGV-Roma 69991261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-06-28 09:34:15 ± 0.28
Latitude 43.99 ± 0.02
Longitude 8.29 ± 0.02
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type controlled explosion
Origin ID 69991261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2040
Semi-minor axis of confidence ellipse (meter) 940
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
Circular confidence region, given by single value of horizontal uncertainty (meter) 2040
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67449
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 69991261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-06-28 09:57:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2019-06-28T09:35:49.04 3.0 undecidable manual Pg 13.86 0
IV.MCRV.HHZ. 2019-06-28T09:35:46.11 3.0 undecidable manual Pn 0.97 0
IT.ORP.HGZ. 2019-06-28T09:35:42.05 3.0 undecidable manual Pn -0.28 0
IT.OPI.HGZ. 2019-06-28T09:35:40.97 3.0 undecidable manual Pg 14.9 0
IT.VNF1.HGZ. 2019-06-28T09:35:37.42 3.0 positive manual Pn 7.28 0
IV.MF5.EHZ. 2019-06-28T09:35:26.06 3.0 undecidable manual Pg 10.26 0
IV.FIR.HHZ. 2019-06-28T09:35:20.59 3.0 undecidable manual Sn 0.69 0
IV.ZONE.HHZ. 2019-06-28T09:35:19.14 3.0 undecidable manual Sn -0.28 0
IV.FOSV.EHZ. 2019-06-28T09:35:17.91 3.0 undecidable manual Pg 10.02 0
IV.SARZ.HHZ. 2019-06-28T09:34:48.40 3.0 undecidable manual S -1.16 0
GU.RNCA.HHE. 2019-06-28T09:34:29.26 0.3 undecidable manual P 44 0.6745 50 -0.04 69
GU.BURY.HHE. 2019-06-28T09:34:27.84 0.6 undecidable manual P 249 0.5684 50 0.35 44
GU.PCP.HHZ. 2019-06-28T09:34:27.29 0.3 undecidable manual P 18 0.5801 50 -0.41 65
FR.SAOF.HHE.00 2019-06-28T09:34:26.61 0.6 undecidable manual P 270 0.5306 90 -0.2 46
GU.GBOS.HHZ. 2019-06-28T09:34:23.50 0.3 undecidable manual P 308 0.4101 91 -0.61 63
IV.QLNO.HHZ. 2019-06-28T09:34:22.54 0.1 undecidable manual P 7 0.3363 91 0.06 98
IV.IMI.HHZ. 2019-06-28T09:34:21.68 0.1 undecidable manual P 255 0.2977 91 0.07 99
GU.CANO.HHZ. 2019-06-28T09:34:20.33 0.1 undecidable manual P 350 0.2203 91 0.42 93
GU.RORO.HHZ. 2019-06-28T09:34:19.61 0.1 negative manual P 307 0.2023 91 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHN. ML:1.1 9.08E-5 0.4 AML other m 2019-06-28T09:34:20.59
IV.IMI.HHE. ML:1.4 0.0001155 0.14 AML other m 2019-06-28T09:34:22.41
IV.IMI.HHN. ML:1.3 8.42E-5 0.92 AML other m 2019-06-28T09:34:23.09
GU.RORO.HHE. ML:1 6.98E-5 1.02 AML other m 2019-06-28T09:34:23.46
GU.CANO.HHE. ML:1.4 0.000179 0.38 AML other m 2019-06-28T09:34:25.82
GU.GBOS.HHE. ML:0.7 1.73E-5 0.42 AML other m 2019-06-28T09:34:26.49
GU.CANO.HHN. ML:1.3 0.000131 0.3 AML other m 2019-06-28T09:34:27.21
GU.GBOS.HHN. ML:1.5 8.865E-5 1.04 AML other m 2019-06-28T09:34:34.79
IV.ZONE.HHN. ML:2.3 4.025E-5 0.6 AML other m 2019-06-28T09:35:21.66
IV.ZONE.HHE. ML:2.3 4.01E-5 0.38 AML other m 2019-06-28T09:35:47.26
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