Earthquake with magnitude of ML 0.6 on date 30-10-2020 and time 16:53:26 (Italy) in region 1 km E Castelbianco (SV)

A magnitude ML 0.6 earthquake occured in region: 1 km E Castelbianco (SV), on

  • 30-10-2020 15:53:26 (UTC)
  • 30-10-2020 16:53:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.12, 8.09 at 5 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
Castelbianco SV 1 330 330
Zuccarello SV 2 309 639
Castelvecchio di Rocca Barbena SV 3 145 784
Erli SV 3 245 1029
Arnasco SV 4 645 1674
Vendone SV 5 388 2062
Nasino SV 5 207 2269
Cisano sul Neva SV 5 2085 4354
Onzo SV 6 219 4573
Ortovero SV 7 1586 6159
Balestrino SV 7 595 6754
Alto CN 7 128 6882
Aquila d'Arroscia IM 8 166 7048
Ranzo IM 9 557 7605
Villanova d'Albenga SV 9 2657 10262
Garlenda SV 9 1254 11516
Bardineto SV 9 756 12272
Toirano SV 9 2644 14916
Casanova Lerrone SV 10 749 15665
Garessio CN 11 3244 18909
Borghetto d'Arroscia IM 11 456 19365
Boissano SV 11 2492 21857
Caprauna CN 11 104 21961
Ceriale SV 12 5561 27522
Borghetto Santo Spirito SV 12 4948 32470
Albenga SV 12 24213 56683
Vessalico IM 13 282 56965
Stellanello SV 13 808 57773
Testico SV 13 196 57969
Alassio SV 14 10934 68903
Calizzano SV 14 1475 70378
Loano SV 14 11407 81785
Giustenice SV 14 977 82762
Armo IM 14 111 82873
Ormea CN 15 1617 84490
Cesio IM 15 283 84773
Magliolo SV 15 974 85747
Priola CN 16 701 86448
Pietra Ligure SV 16 8992 95440
Pieve di Teco IM 16 1338 96778
Tovo San Giacomo SV 16 2582 99360
Villa Faraldi IM 16 444 99804
Laigueglia SV 16 1810 101614
Caravonica IM 17 282 101896
Chiusanico IM 18 607 102503
Andora SV 18 7552 110055
Borgio Verezzi SV 18 2205 112260
Pornassio IM 18 685 112945
Chiusavecchia IM 18 577 113522
Rialto SV 19 564 114086
Diano Arentino IM 19 722 114808
Lucinasco IM 19 272 115080
Calice Ligure SV 19 1730 116810
Borgomaro IM 19 865 117675
Aurigo IM 20 347 118022

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Savona (61345 inhabitants)
41 Km NE of Sanremo (54807 inhabitants)
53 Km SE of Cuneo (56081 inhabitants)
75 Km W of Genova (586655 inhabitants)
88 Km S of Asti (76202 inhabitants)
98 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 0.6 2020-10-30
15:53:26
44.11 8.09 5 2020-10-30
16:02:09
Sala Sismica INGV-Roma 84269871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-30 15:53:26 ± 0.17
Latitude 44.11 ± 0.01
Longitude 8.09 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84269871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1259
Semi-minor axis of confidence ellipse (meter) 292
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 313
Circular confidence region, given by single value of horizontal uncertainty (meter) 1260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.24911
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0
Num. used stations 1
Type of magnitude ML
Reference to an origin 84269871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-30 16:02:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PLLN.EHZ. 2020-10-30T15:54:37.88 3.0 undecidable manual Pg 13.37 0
IV.SPS2.HHZ. 2020-10-30T15:54:34.45 3.0 positive manual Pg 15.92 0
IV.VAGA.HHZ. 2020-10-30T15:54:30.81 3.0 undecidable manual Sg 8.53 0
XK.GIZZ.HHZ. 2020-10-30T15:54:26.12 3.0 negative manual Pn 4.78 0
GU.TRAV.HHZ. 2020-10-30T15:54:25.74 3.0 undecidable manual Sg 14.47 0
IV.RNI2.HHZ. 2020-10-30T15:54:17.30 3.0 undecidable manual Sn 1.64 0
IT.PLTA.HNZ. 2020-10-30T15:54:16.97 3.0 undecidable manual Sn -2.79 0
IV.MRVN.HHZ. 2020-10-30T15:54:12.93 3.0 undecidable manual Pg 14.08 0
IV.VVLD.HHZ. 2020-10-30T15:54:09.34 3.0 undecidable manual Sn 2.45 0
IV.VIVA.HHZ. 2020-10-30T15:54:03.34 3.0 undecidable manual Sn 0.58 0
GU.REMY.HHZ. 2020-10-30T15:53:46.55 3.0 undecidable manual Pn 3.71 0
IV.LAV9.HHZ. 2020-10-30T15:53:42.26 3.0 undecidable manual Pg 10.53 0
IV.MMO1.EHZ. 2020-10-30T15:53:40.79 3.0 undecidable manual Sn -2.78 0
IV.IMI.HHZ. 2020-10-30T15:53:36.07 0.3 undecidable manual S 215 0.2491 100 0.29 68
IV.RNI2.HHZ. 2020-10-30T15:53:33.30 3.0 undecidable manual Pn -4.97 0
IV.VIVA.HHZ. 2020-10-30T15:53:31.44 3.0 undecidable manual Pn 0.42 0
GU.CANO.HHZ. 2020-10-30T15:53:31.92 0.3 undecidable manual S 48 0.1394 108 0.23 70
GU.GBOS.HHZ. 2020-10-30T15:53:31.09 0.1 undecidable manual P 305 0.2203 102 0.06 96
IV.IMI.HHZ. 2020-10-30T15:53:31.38 0.3 undecidable manual P 215 0.2491 100 -0.28 68
GU.CANO.HHZ. 2020-10-30T15:53:29.08 0.3 undecidable manual P 48 0.1394 108 -0.22 71
IV.MMO1.EHZ. 2020-10-30T15:53:28.51 3.0 undecidable manual Pg 8.27 0
GU.RORO.HHZ. 2020-10-30T15:53:27.10 0.1 undecidable manual P 262 0.018 158 -0.03 100
GU.RORO.HHZ. 2020-10-30T15:53:27.91 0.1 undecidable manual S 262 0.018 158 -0.03 100
IV.MNTT.EHZ. 2020-10-30T15:53:22.41 3.0 negative manual Pn 1.71 0
IV.ARRO.EHZ. 2020-10-30T15:53:18.48 3.0 negative manual Pn -2.06 0
IV.APEC.HHZ. 2020-10-30T15:53:18.55 3.0 undecidable manual S -2.22 0
IV.NDIM.HHZ. 2020-10-30T15:53:17.05 3.0 undecidable manual S -0.64 0
IV.CSNT.HHZ. 2020-10-30T15:53:16.61 3.0 undecidable manual S -0.9 0
GU.CARD.HHZ. 2020-10-30T15:53:16.27 3.0 undecidable manual S -1.53 0
IV.FIR.HHZ. 2020-10-30T15:53:09.06 3.0 undecidable manual S -0.92 0
GU.POPM.HHZ. 2020-10-30T15:53:06.47 3.0 negative manual P 3.44 0
IV.IMOL.HNZ. 2020-10-30T15:52:58.60 3.0 undecidable manual S -1.84 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHE. ML:0 0.00041881545 0.064 AML other m 2020-10-30T15:53:28.10
GU.RORO.HHN. ML:0 0.000472139 0.1024 AML other m 2020-10-30T15:53:28.10
GU.CANO.HHN. ML:0.6 4.5742165E-5 0.2048 AML other m 2020-10-30T15:53:31.99
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