Earthquake with magnitude of ML 1.0 on date 01-07-2022 and time 16:04:41 (Italy) in region 4 km W Vado Ligure (SV)

A magnitude ML 1.0 earthquake occured in region: 4 km W Vado Ligure (SV), on

  • 01-07-2022 14:04:41 (UTC)
  • 01-07-2022 16:04:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2640, 8.3940 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
Vado Ligure SV 4 8336 8336
Quiliano SV 4 7232 15568
Bergeggi SV 4 1129 16697
Spotorno SV 5 3803 20500
Vezzi Portio SV 5 809 21309
Noli SV 7 2736 24045
Orco Feglino SV 7 890 24935
Mallare SV 8 1146 26081
Savona SV 9 61345 87426
Altare SV 9 2108 89534
Calice Ligure SV 10 1730 91264
Rialto SV 11 564 91828
Finale Ligure SV 11 11711 103539
Albissola Marina SV 11 5487 109026
Pallare SV 12 923 109949
Albisola Superiore SV 13 10163 120112
Bormida SV 13 387 120499
Carcare SV 13 5587 126086
Borgio Verezzi SV 14 2205 128291
Tovo San Giacomo SV 14 2582 130873
Magliolo SV 14 974 131847
Celle Ligure SV 15 5237 137084
Osiglia SV 15 444 137528
Pietra Ligure SV 16 8992 146520
Giustenice SV 16 977 147497
Plodio SV 16 650 148147
Stella SV 17 3009 151156
Cosseria SV 17 1105 152261
Cairo Montenotte SV 18 13269 165530
Varazze SV 18 13251 178781
Loano SV 18 11407 190188
Millesimo SV 19 3383 193571
Murialdo SV 19 841 194412
Roccavignale SV 19 752 195164
Boissano SV 20 2492 197656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SW of Savona (61345 inhabitants)
46 Km W of Genova (586655 inhabitants)
69 Km E of Cuneo (56081 inhabitants)
69 Km NE of Sanremo (54807 inhabitants)
72 Km S of Asti (76202 inhabitants)
74 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 1.0 2022-07-01
14:04:41
44.2645 8.3938 10 2022-07-01
14:23:02
Sala Sismica INGV-Roma 106683101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-01 14:04:41 ± 0.32
Latitude 44.2645 ± 0.0180
Longitude 8.3938 ± 0.0327
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 106683101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3230
Semi-minor axis of confidence ellipse (meter) 624
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 307
Circular confidence region, given by single value of horizontal uncertainty (meter) 3230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47484
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 106683101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-01 14:23:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RNCA.HHZ. 2022-07-01T14:04:55.12 3.0 undecidable manual P 0
GU.PCP.HHZ. 2022-07-01T14:04:52.90 0.6 undecidable manual S 21 0.2968 50 -0.15 47
GU.RORO.HHZ. 2022-07-01T14:04:51.97 0.6 undecidable manual S 237 0.2797 50 -0.55 43
GU.MGRO.HHE. 2022-07-01T14:04:51.59 0.3 undecidable manual P 242 0.4748 50 0.34 65
GU.GBOS.HHE. 2022-07-01T14:04:50.30 0.3 undecidable manual P 267 0.3975 50 0.38 66
GU.PCP.HHZ. 2022-07-01T14:04:48.20 0.3 undecidable manual P 21 0.2968 50 -0.01 72
GU.CANO.HHZ. 2022-07-01T14:04:47.61 0.6 undecidable manual S 243 0.1259 126 0 50
GU.RORO.HHZ. 2022-07-01T14:04:47.71 0.6 undecidable manual P 237 0.2797 50 -0.19 47
GU.CANO.HHZ. 2022-07-01T14:04:45.01 0.3 undecidable manual P 243 0.1259 126 -0.06 74
IV.QLNO.HHZ. 2022-07-01T14:04:45.88 0.6 undecidable manual S 330 0.0692 143 -0.16 49
IV.QLNO.HHZ. 2022-07-01T14:04:44.21 0.1 positive manual P 330 0.0692 143 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHE. ML:0.9 0.00011099999999999999 1.32 AML other m 2022-07-01T14:04:46.89
IV.QLNO.HHN. ML:0.6 0.00005814999999999999 1.68 AML other m 2022-07-01T14:04:46.98
GU.CANO.HHE. ML:1.2 0.00016 0.32 AML other m 2022-07-01T14:04:48.13
GU.CANO.HHN. ML:1.2 0.0001435 1.08 AML other m 2022-07-01T14:04:49.05
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