Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 25-01-2022 and time 12:40:50 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude ML 0.7 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 25-01-2022 11:40:50 (UTC)
  • 25-01-2022 12:40:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1620, 8.4880 at 14 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.

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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 8 2736 2736
Spotorno SV 9 3803 6539
Bergeggi SV 10 1129 7668
Finale Ligure SV 12 11711 19379
Vezzi Portio SV 13 809 20188
Vado Ligure SV 13 8336 28524
Orco Feglino SV 14 890 29414
Borgio Verezzi SV 15 2205 31619
Quiliano SV 16 7232 38851
Calice Ligure SV 16 1730 40581
Pietra Ligure SV 16 8992 49573
Savona SV 16 61345 110918
Tovo San Giacomo SV 18 2582 113500
Rialto SV 18 564 114064
Loano SV 18 11407 125471
Albissola Marina SV 19 5487 130958
Magliolo SV 19 974 131932
Giustenice SV 19 977 132909
Albisola Superiore SV 20 10163 143072

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km S of Savona (61345 inhabitants)
45 Km SW of Genova (586655 inhabitants)
68 Km NE of Sanremo (54807 inhabitants)
79 Km E of Cuneo (56081 inhabitants)
84 Km S of Alessandria (93943 inhabitants)
85 Km S of Asti (76202 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 0.7 2022-01-25
11:40:50		 44.1617 8.4878 14 2022-01-25
11:49:54		 Sala Sismica INGV-Roma 100168571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-25 11:40:50 ± 0.27
Latitude 44.1617 ± 0.0126
Longitude 8.4878 ± 0.0163
Depth (km) 14 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 100168571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1678
Semi-minor axis of confidence ellipse (meter) 171
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) 1680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.18526
Epicentral distance of station farthest from the epicenter (degree) 0.83637
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 100168571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-25 11:49:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
FR.SAOF.HHE.00 2022-01-25T11:41:13.51 0.3 undecidable manual S 256 76.9674 92 0.37 76
IT.GNV.HGE. 2022-01-25T11:41:09.75 0.6 undecidable manual P 46.3203 1.107 0
GU.STV.HHE. 2022-01-25T11:41:06.76 0.1 undecidable manual P 276 92.8404 92 0.91 86
GU.IMI.HHE. 2022-01-25T11:41:06.69 0.3 undecidable manual S 240 55.0005 93 -0.58 60
GU.GBOS.HHE. 2022-01-25T11:41:06.74 0.3 undecidable manual S 280 52.3032 93 0.19 76
FR.SAOF.HHE.00 2022-01-25T11:41:04.28 0.1 undecidable manual P 256 76.9674 92 0.87 89
GU.PCP.HHZ. 2022-01-25T11:41:03.27 0.3 undecidable manual S 6 42.3243 95 -0.64 59
GU.RORO.HHE. 2022-01-25T11:41:01.27 0.3 undecidable manual S 261 33.9438 96 -0.41 66
GU.RNCA.HHE. 2022-01-25T11:40:59.93 0.1 undecidable manual P 47 50.3163 94 0.63 99
GU.MGRO.HHZ. 2022-01-25T11:40:59.88 0.1 undecidable manual P 257 55.6998 93 -0.25 92
GU.IMI.HHE. 2022-01-25T11:40:59.55 0.1 undecidable manual P 240 55.0005 93 -0.47 84
GU.GBOS.HHE. 2022-01-25T11:40:59.56 0.1 undecidable manual P 280 52.3032 93 -0.05 97
GU.CANO.HHZ. 2022-01-25T11:40:58.02 0.3 undecidable manual S 284 20.5683 106 -0.14 75
IV.QLNO.HHZ. 2022-01-25T11:40:58.35 0.3 undecidable manual S 328 21.2676 105 0.01 78
GU.PCP.HHZ. 2022-01-25T11:40:57.79 0.1 undecidable manual P 6 42.3243 95 -0.29 93
GU.RORO.HHE. 2022-01-25T11:40:56.63 0.1 undecidable manual P 261 33.9438 96 -0.16 98
GU.CANO.HHZ. 2022-01-25T11:40:54.49 0.1 positive manual P 284 20.5683 106 -0.27 96
IV.QLNO.HHZ. 2022-01-25T11:40:54.69 0.1 undecidable manual P 328 21.2676 105 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHE. ML:0.7 0.000035699999999999994 0.86 AML other m 2022-01-25T11:40:59.59
IV.QLNO.HHN. ML:0.7 0.000035364020000000004 0.4224 AML other m 2022-01-25T11:40:58.72
GU.CANO.HHN. ML:0.5 0.00002116211 0.5824 AML other m 2022-01-25T11:40:58.67
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download