Earthquake with magnitude of ML 1.3 on date 26-11-2020 and time 06:02:00 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude ML 1.3 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 26-11-2020 05:02:00 (UTC)
  • 26-11-2020 06:02:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.17, 8.52 at 11 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
Noli SV 9 2736 2736
Spotorno SV 10 3803 6539
Bergeggi SV 11 1129 7668
Vado Ligure SV 13 8336 16004
Finale Ligure SV 14 11711 27715
Vezzi Portio SV 14 809 28524
Savona SV 16 61345 89869
Orco Feglino SV 16 890 90759
Quiliano SV 17 7232 97991
Borgio Verezzi SV 17 2205 100196
Albissola Marina SV 18 5487 105683
Calice Ligure SV 18 1730 107413
Pietra Ligure SV 19 8992 116405
Albisola Superiore SV 19 10163 126568
Tovo San Giacomo SV 20 2582 129150
Celle Ligure SV 20 5237 134387

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km S of Savona (61345 inhabitants)
43 Km SW of Genova (586655 inhabitants)
70 Km NE of Sanremo (54807 inhabitants)
81 Km E of Cuneo (56081 inhabitants)
84 Km S of Alessandria (93943 inhabitants)
85 Km SE of Asti (76202 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 1.3 2020-11-26
05:02:00
44.17 8.51 11 2020-11-26
05:09:42
Sala Sismica INGV-Roma 85025331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-26 05:02:00 ± 0.26
Latitude 44.17 ± 0.01
Longitude 8.51 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85025331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1381
Semi-minor axis of confidence ellipse (meter) 731
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 317
Circular confidence region, given by single value of horizontal uncertainty (meter) 1380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 195
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 16
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
Epicentral distance of station farthest from the epicenter (degree) 0.85526
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 85025331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-26 05:09:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SACS.HHZ. 2020-11-26T05:03:29.90 3.0 undecidable manual Sg 0.59 0
IV.APEC.HHZ. 2020-11-26T05:03:27.49 3.0 undecidable manual Sn -3.35 0
IV.CAVE.HHZ. 2020-11-26T05:03:08.17 3.0 undecidable manual Sg 3.37 0
IV.CRTC.HHZ. 2020-11-26T05:03:05.23 3.0 undecidable manual Pg 9.19 0
IV.FIR.HHZ. 2020-11-26T05:02:37.74 3.0 negative manual Pn -2.5 0
GU.STV.HHZ. 2020-11-26T05:02:29.90 3.0 undecidable manual S 0.8553 1.02 0
GU.ENR.HHZ. 2020-11-26T05:02:28.00 3.0 undecidable manual S 275 0.7869 50 1.16 0
FR.SAOF.HHE. 2020-11-26T05:02:25.00 0.6 undecidable manual S 256 0.7132 50 0.32 43
GU.RNCA.HHZ. 2020-11-26T05:02:18.16 3.0 undecidable manual S 45 0.4362 50 1.7 0
GU.STV.HHZ. 2020-11-26T05:02:18.00 3.0 negative manual P 0.8553 0.92 0
IV.IMI.HHE. 2020-11-26T05:02:18.64 0.6 undecidable manual S 240 0.5144 50 -0.13 47
GU.GBOS.HHZ. 2020-11-26T05:02:18.09 0.6 undecidable manual S 279 0.4892 50 0.06 48
GU.ENR.HHZ. 2020-11-26T05:02:16.37 1.0 positive manual P 275 0.7869 50 0.46 21
FR.SAOF.HHE. 2020-11-26T05:02:15.15 0.1 undecidable manual P 256 0.7132 50 0.49 83
GU.PCP.HHZ. 2020-11-26T05:02:14.33 0.6 undecidable manual S 3 0.3759 50 -0.34 46
GU.RORO.HHZ. 2020-11-26T05:02:13.12 0.6 undecidable manual S 261 0.3265 50 -0.08 49
GU.RNCA.HHZ. 2020-11-26T05:02:10.52 0.6 positive manual P 45 0.4362 50 0.6 42
IV.IMI.HHE. 2020-11-26T05:02:10.84 0.1 undecidable manual P 240 0.5144 50 -0.41 89
GU.GBOS.HHZ. 2020-11-26T05:02:10.92 0.3 undecidable manual P 279 0.4892 50 0.1 71
IV.QLNO.HHZ. 2020-11-26T05:02:09.58 0.6 undecidable manual S 323 0.1988 50 0.15 50
GU.CANO.HHZ. 2020-11-26T05:02:09.78 0.6 undecidable manual S 282 0.2032 50 0.22 49
GU.PCP.HHZ. 2020-11-26T05:02:08.43 1.0 negative manual P 3 0.3759 50 -0.45 23
GU.RORO.HHZ. 2020-11-26T05:02:07.58 0.6 undecidable manual P 261 0.3265 50 -0.45 46
IV.QLNO.HHZ. 2020-11-26T05:02:05.78 1.0 undecidable manual P 323 0.1988 50 -0.08 25
GU.CANO.HHZ. 2020-11-26T05:02:05.79 0.1 undecidable manual P 282 0.2032 50 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CANO.HHE. ML:1.4 0.0001505 0.72 AML other m 2020-11-26T05:02:10.56
GU.CANO.HHN. ML:1.2 9.6E-5 0.34 AML other m 2020-11-26T05:02:10.23
IV.APEC.HNE. ML:3.9 0.000939 0.4 AML other m 2020-11-26T05:03:37.03
IV.APEC.HNN. ML:4 0.0010055 0.4 AML other m 2020-11-26T05:04:03.66
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