Earthquake with magnitude of Md 1.1 on date 26-08-2020 and time 17:00:39 (Italy) in region Zuccarello (SV)

A magnitude Md 1.1 earthquake occured in region: Zuccarello (SV), on

  • 26-08-2020 15:00:39 (UTC)
  • 26-08-2020 17:00:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.11, 8.12 at 10 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
Cisano sul Neva SV 3 2085 3114
Arnasco SV 3 645 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 10 756 16851
Ceriale SV 10 5561 22412
Ranzo IM 10 557 22969
Casanova Lerrone SV 10 749 23718
Albenga SV 10 24213 47931
Borghetto Santo Spirito SV 10 4948 52879
Loano SV 12 11407 64286
Alassio SV 12 10934 75220
Garessio CN 12 3244 78464
Borghetto d'Arroscia IM 12 456 78920
Giustenice SV 13 977 79897
Stellanello SV 13 808 80705
Caprauna CN 13 104 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
Villa Faraldi IM 16 444 97564
Cesio IM 16 283 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
Caravonica IM 18 282 112217
Chiusanico IM 18 607 112824
Calice Ligure SV 18 1730 114554
Chiusavecchia IM 19 577 115131
Diano Arentino IM 19 722 115853
Finale Ligure SV 20 11711 127564
Lucinasco IM 20 272 127836
Pornassio IM 20 685 128521
San Bartolomeo al Mare IM 20 3129 131650
Borgomaro IM 20 865 132515
Diano San Pietro IM 20 1145 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
Md 1.1 2020-08-26
15:00:39
44.11 8.12 10 2020-08-26
15:08:59
Sala Sismica INGV-Roma 82348671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-26 15:00:39 ± 0.19
Latitude 44.11 ± 0.01
Longitude 8.12 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82348671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1650
Semi-minor axis of confidence ellipse (meter) 1030
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 324
Circular confidence region, given by single value of horizontal uncertainty (meter) 1650
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 9
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
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 6
Number of stations from which data was used for origin computation 5
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude Md
Reference to an origin 82348671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-26 15:08:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2020-08-26T15:00:53.20 3.0 undecidable manual S 0.2716 3.08 0
GU.GBOS.HHZ. 2020-08-26T15:00:49.03 0.3 undecidable manual S 304 0.2383 50 -0.09 74
IV.QLNO.HHZ. 2020-08-26T15:00:49.66 3.0 undecidable manual P 0.2716 4.09 0
GU.MGRO.HHZ. 2020-08-26T15:00:45.07 0.3 undecidable manual P 253 0.2302 111 0.2 73
GU.CANO.HHZ. 2020-08-26T15:00:45.35 0.6 undecidable manual S 41 0.1322 124 -0.17 50
GU.GBOS.HHZ. 2020-08-26T15:00:45.49 0.6 negative manual P 304 0.2383 50 0.49 46
IV.IMI.HHZ. 2020-08-26T15:00:45.33 0.1 undecidable manual P 219 0.2545 50 0.05 100
GU.CANO.HHZ. 2020-08-26T15:00:43.19 0.3 undecidable manual P 41 0.1322 124 0.27 73
GU.RORO.HHZ. 2020-08-26T15:00:41.04 0.1 undecidable manual P 276 0.0351 158 -0.48 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHZ. Md:0.4 4 END duration s
GU.CANO.HHZ. Md:1.2 9 END duration s
GU.MGRO.HHZ. Md:1.2 9 END duration s
GU.GBOS.HHZ. Md:1.1 8 END duration s
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