Earthquake with magnitude of ML 1.9 on date 30-06-2022 and time 07:36:32 (UTC) in region Costa Ligure Occidentale (Imperia)

A magnitude ML 1.9 earthquake occured in region: Costa Ligure Occidentale (Imperia), on

  • 30-06-2022 07:36:32 (UTC)
  • 30-06-2022 09:36:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7890, 7.8290 at 9 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
Sanremo IM 5 54807 54807
Taggia IM 7 14116 68923
Riva Ligure IM 7 2910 71833
Santo Stefano al Mare IM 8 2197 74030
Pompeiana IM 9 823 74853
Ospedaletti IM 9 3367 78220
Castellaro IM 9 1256 79476
Terzorio IM 9 216 79692
Cipressa IM 11 1290 80982
Ceriana IM 11 1250 82232
Seborga IM 12 315 82547
Costarainera IM 12 828 83375
Bordighera IM 13 10469 93844
Pietrabruna IM 13 501 94345
San Lorenzo al Mare IM 13 1297 95642
Vallebona IM 13 1310 96952
Civezza IM 14 609 97561
Badalucco IM 14 1136 98697
Soldano IM 15 977 99674
San Biagio della Cima IM 15 1329 101003
Vallecrosia IM 15 6956 107959
Perinaldo IM 15 870 108829
Bajardo IM 16 312 109141
Montalto Ligure IM 16 377 109518
Camporosso IM 16 5632 115150
Dolcedo IM 17 1415 116565
Apricale IM 17 629 117194
Ventimiglia IM 18 24310 141504
Prelà IM 18 503 142007
Dolceacqua IM 18 2074 144081
Isolabona IM 18 679 144760
Vasia IM 19 389 145149
Carpasio IM 19 168 145317
Imperia IM 19 42034 187351
Castel Vittorio IM 20 287 187638

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SE of Sanremo (54807 inhabitants)
71 Km SE of Cuneo (56081 inhabitants)
78 Km SW of Savona (61345 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 1.9 2022-06-30
07:36:32
43.7888 7.8292 9 2022-06-30
07:44:15
Sala Sismica INGV-Roma 106643611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-06-30 07:36:32 ± 0.25
Latitude 43.7888 ± 0.0252
Longitude 7.8292 ± 0.0087
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 106643611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2777
Semi-minor axis of confidence ellipse (meter) 721
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 2780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.12145
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 106643611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-06-30 07:44:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
SI.ROSI.HHZ. 2022-06-30T07:38:23.04 3.0 undecidable manual Sn 1.14 0
IV.BULG.HHZ. 2022-06-30T07:38:13.06 3.0 undecidable manual Pn 0.77 0
IV.TOLF.HHZ. 2022-06-30T07:38:10.82 3.0 undecidable manual Sn 0.07 0
IV.ZEN8.EHZ. 2022-06-30T07:37:59.29 3.0 undecidable manual Sg 7.78 0
IV.CAMP.HHZ. 2022-06-30T07:37:52.46 3.0 undecidable manual Pg 14.22 0
IV.MMO1.EHZ. 2022-06-30T07:37:43.23 3.0 undecidable manual Pg 7.25 0
IV.NRCA.HHZ. 2022-06-30T07:37:41.76 3.0 positive manual Pg 7.61 0
IV.ARVD.HHZ. 2022-06-30T07:37:33.68 3.0 negative manual Pn 3.05 0
IV.CRE.HHZ. 2022-06-30T07:37:22.44 3.0 negative manual Pn 1.82 0
GU.PZZ.HHZ. 2022-06-30T07:37:01.70 0.3 undecidable manual S 325 0.8813 50 0.38 60
GU.BHB.HHZ. 2022-06-30T07:36:53.20 0.6 undecidable manual P 339 1.1215 50 0.07 41
GU.STV.HHZ. 2022-06-30T07:36:52.30 0.1 undecidable manual S 322 0.5819 50 -0.16 93
GU.ENR.HHZ. 2022-06-30T07:36:50.60 0.3 undecidable manual S 326 0.5297 50 -0.33 68
GU.CANO.HHZ. 2022-06-30T07:36:50.10 0.1 undecidable manual S 35 0.5108 50 -0.26 91
GU.PCP.HHZ. 2022-06-30T07:36:50.11 1.0 undecidable manual P 34 0.9101 50 0.58 19
GU.PZZ.HHZ. 2022-06-30T07:36:49.56 0.6 undecidable manual P 325 0.8813 50 0.54 38
GU.GBOS.HHZ. 2022-06-30T07:36:48.70 0.1 undecidable manual S 1 0.4524 50 0.07 96
IV.QLNO.HHZ. 2022-06-30T07:36:45.23 1.0 positive manual P 35 0.6511 50 0.14 22
GU.RORO.HHZ. 2022-06-30T07:36:45.50 0.1 undecidable manual S 28 0.3660 50 -0.56 86
FR.SAOF.HHZ.00 2022-06-30T07:36:43.40 0.1 undecidable manual S 315 0.2797 105 0.01 100
GU.ENR.HHZ. 2022-06-30T07:36:43.16 0.6 undecidable manual P 326 0.5297 50 0.14 46
GU.STV.HHZ. 2022-06-30T07:36:43.97 0.6 undecidable manual P 322 0.5819 50 0.07 46
GU.MGRO.HHZ. 2022-06-30T07:36:43.10 0.1 undecidable manual S 357 0.2536 107 0.67 94
GU.CANO.HHZ. 2022-06-30T07:36:42.71 1.0 positive manual P 35 0.5108 50 0.02 24
GU.GBOS.HHZ. 2022-06-30T07:36:41.82 0.1 undecidable manual P 1 0.4524 50 0.13 94
GU.RORO.HHZ. 2022-06-30T07:36:40.30 0.3 negative manual P 28 0.3660 50 0.1 72
GU.BURY.HHZ. 2022-06-30T07:36:40.20 0.1 undecidable manual S 268 0.1961 111 -0.14 99
GU.MGRO.HHZ. 2022-06-30T07:36:38.54 0.1 negative manual P 357 0.2536 107 0.43 95
FR.SAOF.HHZ.00 2022-06-30T07:36:38.61 0.1 negative manual P 315 0.2797 105 -0.05 100
GU.BURY.HHZ. 2022-06-30T07:36:36.79 0.1 negative manual P 268 0.1961 111 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BURY.HHN. ML:1.9 0.0005155000000000001 0.2 AML other m 2022-06-30T07:36:40.56
GU.BURY.HNN. ML:1.9 0.0006305000000000001 0.2 AML other m 2022-06-30T07:36:40.56
GU.BURY.HHE. ML:1.8 0.000451 0.18 AML other m 2022-06-30T07:36:40.57
GU.BURY.HNE. ML:1.8 0.00039600000000000003 0.48 AML other m 2022-06-30T07:36:40.49
GU.ENR.HHE. ML:2.2 0.000331 0.08 AML other m 2022-06-30T07:36:43.29
GU.MGRO.HHE. ML:1.8 0.0003615 0.36 AML other m 2022-06-30T07:36:43.35
GU.MGRO.HHN. ML:1.8 0.00030649999999999997 0.34 AML other m 2022-06-30T07:36:43.44
FR.SAOF.HHN.00 ML:2.1 0.0005549999999999999 0.06 AML other m 2022-06-30T07:36:44.15
FR.SAOF.HHE.00 ML:2.1 0.0006535 0.18 AML other m 2022-06-30T07:36:44.18
GU.CANO.HHE. ML:1.9 0.00019250000000000002 0.7 AML other m 2022-06-30T07:36:50.86
GU.CANO.HHN. ML:1.9 0.0001835 0.18 AML other m 2022-06-30T07:36:50.95
GU.ENR.HHN. ML:2.2 0.00032499999999999993 0.38 AML other m 2022-06-30T07:36:51.37
GU.STV.HHE. ML:2.4 0.0004825 0.12 AML other m 2022-06-30T07:36:52.45
GU.STV.HHN. ML:2.0 0.0002035 0.54 AML other m 2022-06-30T07:36:52.49
IV.QLNO.HHE. ML:1.6 0.00005755 0.92 AML other m 2022-06-30T07:36:55.44
IV.QLNO.HHN. ML:1.6 0.0000711 0.92 AML other m 2022-06-30T07:36:55.91
GU.PZZ.HHN. ML:2.0 0.0001083 0.46 AML other m 2022-06-30T07:37:02.25
GU.PZZ.HHE. ML:1.9 0.00007985 0.56 AML other m 2022-06-30T07:37:03.35
GU.BHB.HHN. ML:1.6 0.0000316 0.28 AML other m 2022-06-30T07:37:09.08
GU.BHB.HHE. ML:1.6 0.00003115 1.42 AML other m 2022-06-30T07:37:10.84
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