Earthquake with magnitude of ML 0.6 on date 24-02-2021 and time 15:37:27 (UTC) in region Zuccarello (SV)

A magnitude ML 0.6 earthquake occured in region: Zuccarello (SV), on

  • 24-02-2021 15:37:27 (UTC)
  • 24-02-2021 16:37:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.11, 8.12 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 0 309 309
Castelvecchio di Rocca Barbena SV 3 145 454
Castelbianco SV 3 330 784
Erli SV 3 245 1029
Arnasco SV 3 645 1674
Cisano sul Neva SV 3 2085 3759
Vendone SV 5 388 4147
Balestrino SV 5 595 4742
Ortovero SV 6 1586 6328
Onzo SV 7 219 6547
Nasino SV 7 207 6754
Villanova d'Albenga SV 7 2657 9411
Toirano SV 8 2644 12055
Garlenda SV 8 1254 13309
Alto CN 9 128 13437
Boissano SV 9 2492 15929
Aquila d'Arroscia IM 9 166 16095
Bardineto SV 9 756 16851
Ceriale SV 10 5561 22412
Ranzo IM 10 557 22969
Casanova Lerrone SV 10 749 23718
Borghetto Santo Spirito SV 10 4948 28666
Albenga SV 10 24213 52879
Loano SV 12 11407 64286
Borghetto d'Arroscia IM 12 456 64742
Garessio CN 12 3244 67986
Alassio SV 12 10934 78920
Caprauna CN 13 104 79024
Giustenice SV 13 977 80001
Stellanello SV 13 808 80809
Testico SV 13 196 81005
Vessalico IM 14 282 81287
Calizzano SV 14 1475 82762
Pietra Ligure SV 14 8992 91754
Magliolo SV 14 974 92728
Tovo San Giacomo SV 15 2582 95310
Laigueglia SV 15 1810 97120
Cesio IM 16 283 97403
Villa Faraldi IM 16 444 97847
Armo IM 16 111 97958
Borgio Verezzi SV 16 2205 100163
Andora SV 17 7552 107715
Ormea CN 17 1617 109332
Priola CN 17 701 110033
Pieve di Teco IM 17 1338 111371
Rialto SV 18 564 111935
Chiusanico IM 18 607 112542
Caravonica IM 18 282 112824
Calice Ligure SV 18 1730 114554
Diano Arentino IM 19 722 115276
Chiusavecchia IM 19 577 115853
Finale Ligure SV 20 11711 127564
Lucinasco IM 20 272 127836
Pornassio IM 20 685 128521
Borgomaro IM 20 865 129386
Diano San Pietro IM 20 1145 130531
San Bartolomeo al Mare IM 20 3129 133660

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)
73 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 2021-02-24
15:37:27
44.11 8.12 6 2021-02-24
15:44:12
Sala Sismica INGV-Roma 87454771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-24 15:37:27 ± 0.16
Latitude 44.11 ± 0.01
Longitude 8.12 ± 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 87454771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 365
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 141
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.2716
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 87454771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 15:44:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2021-02-24T15:37:37.59 0.3 undecidable manual S 37 0.2716 102 -0.51 65
GU.IMI.HHZ. 2021-02-24T15:37:37.33 0.3 undecidable manual S 219 0.2545 103 -0.14 70
GU.GBOS.HHZ. 2021-02-24T15:37:36.64 0.3 undecidable manual S 304 0.2374 103 -0.19 70
GU.IMI.HHZ. 2021-02-24T15:37:33.20 0.1 undecidable manual P 219 0.2545 103 -0.03 96
GU.GBOS.HHZ. 2021-02-24T15:37:33.17 0.1 undecidable manual P 304 0.2374 103 0.31 91
GU.CANO.HHZ. 2021-02-24T15:37:33.08 0.1 undecidable manual S 42 0.1313 113 0.13 96
IV.QLNO.HHZ. 2021-02-24T15:37:33.49 0.1 undecidable manual P 37 0.2716 102 -0.1 94
GU.CANO.HHZ. 2021-02-24T15:37:30.91 0.1 undecidable manual P 42 0.1313 113 0.3 93
GU.RORO.HHE. 2021-02-24T15:37:29.95 0.1 undecidable manual S 276 0.0351 148 -0.04 100
GU.RORO.HHE. 2021-02-24T15:37:28.92 0.1 undecidable manual P 276 0.0351 148 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CANO.HHE. ML:0.9 8.3736065E-5 0.3072 AML other m 2021-02-24T15:37:33.43
GU.CANO.HHN. ML:0.9 8.735E-5 0.24 AML other m 2021-02-24T15:37:33.84
GU.GBOS.HHE. ML:0.2 8.5998445E-6 0.1024 AML other m 2021-02-24T15:37:37.47
GU.GBOS.HHN. ML:0.2 1.0003904E-5 0.1152 AML other m 2021-02-24T15:37:37.19
GU.IMI.HHE. ML:0.8 3.31198835E-5 0.2432 AML other m 2021-02-24T15:37:38.49
GU.IMI.HHN. ML:1 4.7503825E-5 0.2816 AML other m 2021-02-24T15:37:38.82
IV.QLNO.HHE. ML:0.5 1.300675E-5 0.1536 AML other m 2021-02-24T15:37:39.65
IV.QLNO.HHN. ML:0.3 1.206378E-5 0.128 AML other m 2021-02-24T15:37:38.21
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