Earthquake with magnitude of ML 1.3 on date 06-08-2022 and time 06:24:27 (Italy) in region 3 km NE Vezzi Portio (SV)

A magnitude ML 1.3 earthquake occured in region: 3 km NE Vezzi Portio (SV), on

  • 06-08-2022 04:24:27 (UTC)
  • 06-08-2022 06:24:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2580, 8.3760 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
Vezzi Portio SV 3 809 809
Quiliano SV 5 7232 8041
Spotorno SV 5 3803 11844
Vado Ligure SV 5 8336 20180
Bergeggi SV 6 1129 21309
Orco Feglino SV 6 890 22199
Noli SV 7 2736 24935
Mallare SV 7 1146 26081
Calice Ligure SV 9 1730 27811
Altare SV 9 2108 29919
Rialto SV 9 564 30483
Savona SV 10 61345 91828
Finale Ligure SV 10 11711 103539
Pallare SV 11 923 104462
Bormida SV 12 387 104849
Borgio Verezzi SV 12 2205 107054
Magliolo SV 12 974 108028
Tovo San Giacomo SV 12 2582 110610
Albissola Marina SV 13 5487 116097
Carcare SV 13 5587 121684
Giustenice SV 14 977 122661
Albisola Superiore SV 14 10163 132824
Osiglia SV 14 444 133268
Pietra Ligure SV 14 8992 142260
Plodio SV 15 650 142910
Celle Ligure SV 17 5237 148147
Cosseria SV 17 1105 149252
Loano SV 17 11407 160659
Cairo Montenotte SV 18 13269 173928
Millesimo SV 18 3383 177311
Stella SV 18 3009 180320
Murialdo SV 18 841 181161
Boissano SV 18 2492 183653
Roccavignale SV 19 752 184405
Borghetto Santo Spirito SV 19 4948 189353
Cengio SV 20 3563 192916
Varazze SV 20 13251 206167
Toirano SV 20 2644 208811

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Savona (61345 inhabitants)
48 Km W of Genova (586655 inhabitants)
67 Km E of Cuneo (56081 inhabitants)
68 Km NE of Sanremo (54807 inhabitants)
73 Km S of Asti (76202 inhabitants)
75 Km S of Alessandria (93943 inhabitants)
99 Km SE of Moncalieri (57294 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2022-08-06
04:24:27
44.2585 8.3762 10 2022-08-06
04:44:53
Sala Sismica INGV-Roma 108174891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-06 04:24:27 ± 0.15
Latitude 44.2585 ± 0.0126
Longitude 8.3762 ± 0.0138
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108174891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1664
Semi-minor axis of confidence ellipse (meter) 462
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 323
Circular confidence region, given by single value of horizontal uncertainty (meter) 1660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
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) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 1.22847
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 108174891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-06 04:44:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2022-08-06T04:24:50.04 1.0 undecidable manual P 79 1.2285 50 0.13 20
GU.BHB.HHZ. 2022-08-06T04:24:45.96 0.6 undecidable manual P 306 0.9803 50 0.29 41
GU.RNCA.HHE. 2022-08-06T04:24:43.72 0.6 undecidable manual S 62 0.4623 50 0.01 48
GU.STV.HHZ. 2022-08-06T04:24:42.69 1.0 negative manual P 269 0.7518 50 0.94 17
GU.ENR.HHZ. 2022-08-06T04:24:41.20 0.6 undecidable manual P 268 0.6862 50 0.56 40
GU.GBOS.HHZ. 2022-08-06T04:24:40.91 0.6 undecidable manual S 268 0.3840 50 -0.47 44
GU.PCP.HHZ. 2022-08-06T04:24:38.48 0.6 undecidable manual S 23 0.3076 50 -0.63 42
GU.RORO.HHZ. 2022-08-06T04:24:37.03 0.3 undecidable manual S 237 0.2653 50 -0.84 59
GU.MGRO.HHZ. 2022-08-06T04:24:37.10 0.1 undecidable manual P 242 0.4605 50 0.32 90
GU.RNCA.HHE. 2022-08-06T04:24:36.54 0.1 undecidable manual P 62 0.4623 50 -0.27 91
GU.GENL.EHE. 2022-08-06T04:24:36.34 1.0 undecidable manual P 71 0.4488 50 -0.24 23
GU.GBOS.HHZ. 2022-08-06T04:24:35.75 0.1 undecidable manual P 268 0.3840 50 0.28 92
GU.PCP.HHZ. 2022-08-06T04:24:34.40 0.1 undecidable manual P 23 0.3076 50 0.25 94
GU.RORO.HHZ. 2022-08-06T04:24:33.53 0.1 negative manual P 237 0.2653 50 0.09 98
GU.CANO.HHZ. 2022-08-06T04:24:32.59 0.3 undecidable manual S 243 0.1115 130 -0.41 71
IV.QLNO.HHZ. 2022-08-06T04:24:31.38 0.6 undecidable manual S 342 0.0692 144 -0.49 47
IV.QLNO.HHZ. 2022-08-06T04:24:30.16 0.1 undecidable manual P 342 0.0692 144 0.19 100
GU.CANO.HHZ. 2022-08-06T04:24:30.83 0.1 undecidable manual P 243 0.1115 130 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHE. ML:1.5 0.000435 0.26 AML other m 2022-08-06T04:24:31.45
IV.QLNO.HHN. ML:1.2 0.00020150000000000002 0.94 AML other m 2022-08-06T04:24:31.44
GU.CANO.HHE. ML:1.4 0.00030132885 0.1408 AML other m 2022-08-06T04:24:33.10
GU.CANO.HHN. ML:1.6 0.0004671944 0.1024 AML other m 2022-08-06T04:24:32.71
GU.RORO.HHN. ML:1.5 0.00014600000000000003 0.16 AML other m 2022-08-06T04:24:37.20
GU.RORO.HHE. ML:1.3 0.00009445 0.68 AML other m 2022-08-06T04:24:37.52
GU.PCP.HHN. ML:1.0 0.00003985 0.76 AML other m 2022-08-06T04:24:41.97
GU.PCP.HHE. ML:1.1 0.00005685 1.06 AML other m 2022-08-06T04:24:41.97
GU.GRAM.HHN. ML:0.0 0.0001235 0.42 AML other m 2022-08-06T04:25:02.80
GU.GRAM.HHE. ML:0.0 0.00004055 0.48 AML other m 2022-08-06T04:25:02.81
GU.MGRO.HHE. ML:1.0 0.000026223290000000003 0.2816 AML other m 2022-08-06T04:24:45.15
GU.MGRO.HHN. ML:1.2 0.00004156813 0.3616 AML other m 2022-08-06T04:24:44.63
GU.STV.HHE. ML:0.9 0.000008630200499999999 0.16 AML other m 2022-08-06T04:24:57.55
GU.STV.HHN. ML:0.9 0.000008929961000000001 0.16 AML other m 2022-08-06T04:24:56.59
GU.BHB.HHN. ML:1.2 0.000012811075000000002 0.2208 AML other m 2022-08-06T04:25:01.14
GU.BHB.HHE. ML:1.2 0.00001326907 0.1376 AML other m 2022-08-06T04:25:00.83
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download