Earthquake with magnitude of ML 0.9 on date 26-08-2022 and time 22:23:25 (UTC) in region Costa Ligure centro occidentale (Savona)

A magnitude ML 0.9 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 26-08-2022 22:23:25 (UTC)
  • 27-08-2022 00:23:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1300, 8.5050 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
Noli SV 11 2736 2736
Spotorno SV 13 3803 6539
Finale Ligure SV 14 11711 18250
Bergeggi SV 14 1129 19379
Vezzi Portio SV 16 809 20188
Borgio Verezzi SV 16 2205 22393
Vado Ligure SV 17 8336 30729
Orco Feglino SV 17 890 31619
Pietra Ligure SV 18 8992 40611
Calice Ligure SV 19 1730 42341
Tovo San Giacomo SV 20 2582 44923
Loano SV 20 11407 56330
Quiliano SV 20 7232 63562
Savona SV 20 61345 124907

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km S of Savona (61345 inhabitants)
46 Km SW of Genova (586655 inhabitants)
67 Km NE of Sanremo (54807 inhabitants)
81 Km E of Cuneo (56081 inhabitants)
88 Km S of Alessandria (93943 inhabitants)
89 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 0.9 2022-08-26
22:23:25
44.1303 8.505 11 2022-08-26
22:42:31
Sala Sismica INGV-Roma 108970951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-26 22:23:25 ± 0.24
Latitude 44.1303 ± 0.0081
Longitude 8.5050 ± 0.0125
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 108970951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1092
Semi-minor axis of confidence ellipse (meter) 606
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 254
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.85256
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 108970951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-26 22:42:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TRI.HHZ. 2022-08-26T22:25:22.04 3.0 undecidable manual Sn -0.24 0
1J.FX11.HHZ. 2022-08-26T22:25:22.88 3.0 positive manual Pn -0.24 0
IV.SPS2.HHZ. 2022-08-26T22:25:17.27 3.0 negative manual Pn -0.71 0
IV.OFFI.HHZ. 2022-08-26T22:25:14.48 3.0 undecidable manual Sn -3.1 0
IV.MF5.EHZ. 2022-08-26T22:25:12.50 3.0 undecidable manual Sn -0.82 0
ST.OZOL.EHZ. 2022-08-26T22:25:02.16 3.0 undecidable manual Sg 7.65 0
IV.MAGA.HHZ. 2022-08-26T22:24:41.35 3.0 undecidable manual Sg 3.16 0
IV.MF5.EHZ. 2022-08-26T22:24:40.27 3.0 positive manual Pg 13.98 0
IV.GIUL.HHZ. 2022-08-26T22:24:39.22 3.0 positive manual Pn 6.03 0
IV.SNTG.HHZ. 2022-08-26T22:24:26.28 3.0 negative manual Pg 6.01 0
IV.OSSC.HHZ. 2022-08-26T22:24:04.19 3.0 positive manual Pg 1.28 0
IV.SALO.HHZ. 2022-08-26T22:24:02.13 3.0 undecidable manual Pn -2.17 0
CH.MUGIO.HHZ. 2022-08-26T22:24:01.74 3.0 undecidable manual Pg 0.84 0
GU.STV.HHZ. 2022-08-26T22:23:53.17 0.6 undecidable manual S 278 94.6386 50 -0.32 37
FR.SAOF.HHZ.00 2022-08-26T22:23:49.07 0.6 undecidable manual S 258 77.5668 50 0.14 47
GU.GBOS.HHZ. 2022-08-26T22:23:42.86 0.6 undecidable manual S 283 54.3012 50 0.13 48
GU.MGRO.HHZ. 2022-08-26T22:23:42.92 0.6 undecidable manual S 260 56.3991 50 -0.35 41
GU.STV.HHZ. 2022-08-26T22:23:42.22 1.0 undecidable manual P 278 94.6386 50 0.5 24
GU.ENR.HHZ. 2022-08-26T22:23:40.95 0.1 undecidable manual P 278 87.1461 50 0.38 100
GU.PCP.HHZ. 2022-08-26T22:23:40.39 0.6 undecidable manual S 4 45.7209 50 -0.04 49
FR.SAOF.HHZ.00 2022-08-26T22:23:39.07 0.1 undecidable manual P 258 77.5668 50 -0.02 97
GU.GBOS.HHZ. 2022-08-26T22:23:35.45 0.6 negative manual P 283 54.3012 50 -0.06 50
IV.QLNO.HHZ. 2022-08-26T22:23:35.03 0.6 undecidable manual S 330 24.9528 50 0.14 56
GU.MGRO.HHZ. 2022-08-26T22:23:35.60 0.3 negative manual P 260 56.3991 50 -0.22 72
GU.PCP.HHZ. 2022-08-26T22:23:34.06 1.0 negative manual P 4 45.7209 50 -0.12 26
GU.CANO.HHZ. 2022-08-26T22:23:34.48 0.6 undecidable manual S 292 22.9548 50 0.12 57
IV.QLNO.HHZ. 2022-08-26T22:23:30.91 1.0 undecidable manual P 330 24.9528 50 -0.08 28
GU.CANO.HHZ. 2022-08-26T22:23:30.56 0.3 negative manual P 292 22.9548 50 -0.12 83
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CANO.HHE. ML:1.2 0.00010985 0.34 AML other m 2022-08-26T22:23:35.50
GU.CANO.HHN. ML:1.1 0.00008219999999999999 0.82 AML other m 2022-08-26T22:23:35.96
IV.QLNO.HHN. ML:0.7 0.000028699999999999996 1.46 AML other m 2022-08-26T22:23:36.14
IV.QLNO.HHE. ML:0.8 0.00003365 0.22 AML other m 2022-08-26T22:23:37.80
GU.PCP.HHN. ML:0.8 0.000020900000000000003 1.06 AML other m 2022-08-26T22:23:42.55
GU.PCP.HHE. ML:0.9 0.000025 0.26 AML other m 2022-08-26T22:23:43.07
GU.MGRO.HHN. ML:1.1 0.00002755 0.8 AML other m 2022-08-26T22:23:44.27
GU.GBOS.HHE. ML:0.6 0.00001205 0.82 AML other m 2022-08-26T22:23:44.57
GU.GBOS.HHN. ML:0.6 0.0000123 1.58 AML other m 2022-08-26T22:23:45.88
GU.MGRO.HHE. ML:1.0 0.00002595 0.66 AML other m 2022-08-26T22:23:46.72
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