Earthquake (quarry blast) with magnitude of ML 0.8 on date 03-10-2018 and time 16:53:16 (Italy) in region 1 km SW Zuccarello (SV)

A magnitude ML 0.8 (quarry blast) earthquake occured in region: 1 km SW Zuccarello (SV), on

  • 03-10-2018 14:53:16 (UTC)
  • 03-10-2018 16:53:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1, 8.11 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Zuccarello SV 1 309 309
Arnasco SV 3 645 954
Castelvecchio di Rocca Barbena SV 3 145 1099
Castelbianco SV 3 330 1429
Cisano sul Neva SV 3 2085 3514
Erli SV 4 245 3759
Vendone SV 5 388 4147
Balestrino SV 6 595 4742
Ortovero SV 6 1586 6328
Onzo SV 6 219 6547
Nasino SV 7 207 6754
Villanova d'Albenga SV 7 2657 9411
Garlenda SV 8 1254 10665
Toirano SV 8 2644 13309
Alto CN 9 128 13437
Aquila d'Arroscia IM 9 166 13603
Ranzo IM 9 557 14160
Boissano SV 9 2492 16652
Casanova Lerrone SV 10 749 17401
Ceriale SV 10 5561 22962
Bardineto SV 10 756 23718
Albenga SV 10 24213 47931
Borghetto Santo Spirito SV 11 4948 52879
Borghetto d'Arroscia IM 12 456 53335
Alassio SV 12 10934 64269
Stellanello SV 12 808 65077
Loano SV 12 11407 76484
Garessio CN 12 3244 79728
Caprauna CN 13 104 79832
Testico SV 13 196 80028
Giustenice SV 13 977 81005
Vessalico IM 14 282 81287
Calizzano SV 15 1475 82762
Pietra Ligure SV 15 8992 91754
Laigueglia SV 15 1810 93564
Magliolo SV 15 974 94538
Tovo San Giacomo SV 15 2582 97120
Villa Faraldi IM 15 444 97564
Cesio IM 15 283 97847
Armo IM 16 111 97958
Andora SV 16 7552 105510
Borgio Verezzi SV 17 2205 107715
Ormea CN 17 1617 109332
Pieve di Teco IM 17 1338 110670
Priola CN 17 701 111371
Caravonica IM 17 282 111653
Chiusanico IM 17 607 112260
Diano Arentino IM 18 722 112982
Chiusavecchia IM 18 577 113559
Rialto SV 18 564 114123
Calice Ligure SV 18 1730 115853
Lucinasco IM 19 272 116125
Diano San Pietro IM 20 1145 117270
San Bartolomeo al Mare IM 20 3129 120399
Borgomaro IM 20 865 121264
Pornassio IM 20 685 121949
Cervo IM 20 1187 123136
Pontedassio IM 20 2323 125459
Finale Ligure SV 20 11711 137170

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Savona (61345 inhabitants)
41 Km NE of Sanremo (54807 inhabitants)
55 Km SE of Cuneo (56081 inhabitants)
74 Km W of Genova (586655 inhabitants)
89 Km S of Asti (76202 inhabitants)
98 Km SW of Alessandria (93943 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
Rev 1000 ML 0.8 2018-10-03
14:53:16
44.1 8.11 1 2019-06-04
09:16:16
Bollettino Sismico Italiano INGV 68334371
Rev 100 ML 0.8 2018-10-03
14:53:15
44.11 8.12 6 2018-10-03
14:57:37
Sala Sismica INGV-Roma 61595971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-03 14:53:16 ± 0.26
Latitude 44.10 ± 0.02
Longitude 8.11 ± 0.02
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 68334371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2270
Semi-minor axis of confidence ellipse (meter) 1070
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 2270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.51081
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 61595971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-03 14:57:37

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 68334371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-07 12:03:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.ENR.HHZ. 2018-10-03T14:53:26.92 0.3 undecidable manual P 284 0.5108 91 -0.58 62
FR.SAOF.HHE.00 2018-10-03T14:53:24.77 0.3 undecidable manual P 254 0.4191 91 -0.69 61
GU.MGRO.HHZ. 2018-10-03T14:53:21.39 0.1 undecidable manual P 254 0.2275 91 0.2 96
IV.IMI.HHZ. 2018-10-03T14:53:21.78 0.1 undecidable manual P 219 0.25 91 0.08 98
GU.GBOS.HHZ. 2018-10-03T14:53:21.45 0.1 undecidable manual P 305 0.2383 91 0.01 100
IV.QLNO.HHZ. 2018-10-03T14:53:21.97 0.1 undecidable manual P 37 0.2761 91 -0.3 93
GU.CANO.HHZ. 2018-10-03T14:53:19.43 0.1 undecidable manual P 41 0.1358 92 0.26 97
GU.RORO.HHZ. 2018-10-03T14:53:17.47 0.1 undecidable manual P 283 0.0342 98 0.57 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CANO.HHN. ML:0.7 6.56E-5 0.34 AML other m 2018-10-03T14:53:21.54
GU.CANO.HHE. ML:0.9 9.305E-5 0.44 AML other m 2018-10-03T14:53:21.51
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