Earthquake with magnitude of ML 0.9 on date 30-11-2020 and time 10:04:12 (UTC) in region 1 km W Zuccarello (SV)

A magnitude ML 0.9 earthquake occured in region: 1 km W Zuccarello (SV), on

  • 30-11-2020 10:04:12 (UTC)
  • 30-11-2020 11:04:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.11, 8.1 at 6 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
Zuccarello SV 1 309 309
Castelbianco SV 2 330 639
Castelvecchio di Rocca Barbena SV 3 145 784
Arnasco SV 3 645 1429
Erli SV 4 245 1674
Cisano sul Neva SV 4 2085 3759
Vendone SV 4 388 4147
Onzo SV 6 219 4366
Ortovero SV 6 1586 5952
Nasino SV 6 207 6159
Balestrino SV 6 595 6754
Villanova d'Albenga SV 8 2657 9411
Alto CN 8 128 9539
Garlenda SV 8 1254 10793
Aquila d'Arroscia IM 8 166 10959
Ranzo IM 9 557 11516
Toirano SV 9 2644 14160
Casanova Lerrone SV 9 749 14909
Bardineto SV 10 756 15665
Boissano SV 10 2492 18157
Ceriale SV 11 5561 23718
Borghetto d'Arroscia IM 11 456 24174
Albenga SV 11 24213 48387
Borghetto Santo Spirito SV 11 4948 53335
Garessio CN 12 3244 56579
Caprauna CN 12 104 56683
Stellanello SV 12 808 57491
Alassio SV 12 10934 68425
Testico SV 12 196 68621
Vessalico IM 13 282 68903
Loano SV 13 11407 80310
Giustenice SV 14 977 81287
Calizzano SV 15 1475 82762
Cesio IM 15 283 83045
Armo IM 15 111 83156
Laigueglia SV 15 1810 84966
Pietra Ligure SV 15 8992 93958
Magliolo SV 15 974 94932
Villa Faraldi IM 15 444 95376
Tovo San Giacomo SV 16 2582 97958
Ormea CN 16 1617 99575
Pieve di Teco IM 16 1338 100913
Andora SV 17 7552 108465
Priola CN 17 701 109166
Caravonica IM 17 282 109448
Chiusanico IM 17 607 110055
Borgio Verezzi SV 17 2205 112260
Chiusavecchia IM 18 577 112837
Diano Arentino IM 18 722 113559
Pornassio IM 19 685 114244
Rialto SV 19 564 114808
Lucinasco IM 19 272 115080
Calice Ligure SV 19 1730 116810
Borgomaro IM 19 865 117675
Diano San Pietro IM 20 1145 118820
Aurigo IM 20 347 119167
Pontedassio IM 20 2323 121490
San Bartolomeo al Mare IM 20 3129 124619
Cervo IM 20 1187 125806

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Savona (61345 inhabitants)
41 Km NE of Sanremo (54807 inhabitants)
54 Km SE of Cuneo (56081 inhabitants)
75 Km W of Genova (586655 inhabitants)
89 Km S of Asti (76202 inhabitants)
99 Km SW 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
Reviewed
Rev100
ML 0.9 2020-11-30
10:04:12
44.11 8.1 6 2020-11-30
10:27:03
Sala Sismica INGV-Roma 85104881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-30 10:04:12 ± 0.12
Latitude 44.11 ± 0.01
Longitude 8.10 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85104881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 582
Semi-minor axis of confidence ellipse (meter) 536
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.53779
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 85104881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-30 10:27:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PCP.HHZ. 2020-11-30T10:04:23.52 0.3 undecidable manual P 36 0.5378 50 -0.37 65
IV.IMI.HHZ. 2020-11-30T10:04:22.24 0.3 undecidable manual S 217 0.2464 102 -0.07 73
GU.GBOS.HHZ. 2020-11-30T10:04:21.67 0.3 undecidable manual S 306 0.2311 103 -0.05 73
GU.CANO.HHZ. 2020-11-30T10:04:18.28 0.1 undecidable manual S 44 0.1403 111 -0.08 99
IV.QLNO.HHZ. 2020-11-30T10:04:18.78 3.0 negative manual P -0.04 0
GU.GBOS.HHZ. 2020-11-30T10:04:18.11 0.3 undecidable manual P 306 0.2311 103 0.25 71
IV.IMI.HHZ. 2020-11-30T10:04:18.25 0.1 undecidable manual P 217 0.2464 102 0.05 98
GU.CANO.HHZ. 2020-11-30T10:04:16.19 0.1 negative manual P 44 0.1403 111 0.27 95
GU.RORO.HHZ. 2020-11-30T10:04:14.04 0.1 undecidable manual P 283 0.0261 154 0.14 100
GU.RORO.HHZ. 2020-11-30T10:04:14.64 0.1 undecidable manual S 283 0.0261 154 -0.22 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHE. ML:0 0.0007195 1.3 AML other m 2020-11-30T10:04:14.85
GU.RORO.HHN. ML:0 0.000656 0.24 AML other m 2020-11-30T10:04:15.07
GU.CANO.HHE. ML:1.3 0.000229 1.52 AML other m 2020-11-30T10:04:18.09
GU.CANO.HHN. ML:1.1 0.000129 0.34 AML other m 2020-11-30T10:04:19.51
IV.IMI.HHE. ML:0.8 3.685E-5 1.02 AML other m 2020-11-30T10:04:22.78
GU.GBOS.HHE. ML:0.7 3.03E-5 1.52 AML other m 2020-11-30T10:04:22.81
GU.GBOS.HHN. ML:0.6 2.605E-5 0.98 AML other m 2020-11-30T10:04:22.81
IV.IMI.HHN. ML:1 6.21E-5 1.22 AML other m 2020-11-30T10:04:23.38
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