Earthquake with magnitude of ML 0.8 on date 04-06-2022 and time 21:59:22 (Italy) in region Costa Ligure Occidentale (Imperia)

A magnitude ML 0.8 earthquake occured in region: Costa Ligure Occidentale (Imperia), on

  • 04-06-2022 19:59:22 (UTC)
  • 04-06-2022 21:59:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7420, 7.7760 at 12 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
Ospedaletti IM 8 3367 3367
Sanremo IM 9 54807 58174
Bordighera IM 9 10469 68643
Seborga IM 11 315 68958
Vallebona IM 12 1310 70268
Vallecrosia IM 12 6956 77224
Taggia IM 13 14116 91340
San Biagio della Cima IM 13 1329 92669
Soldano IM 14 977 93646
Riva Ligure IM 14 2910 96556
Camporosso IM 14 5632 102188
Ventimiglia IM 14 24310 126498
Santo Stefano al Mare IM 15 2197 128695
Pompeiana IM 15 823 129518
Ceriana IM 16 1250 130768
Castellaro IM 16 1256 132024
Terzorio IM 16 216 132240
Perinaldo IM 16 870 133110
Dolceacqua IM 17 2074 135184
Cipressa IM 18 1290 136474
Apricale IM 18 629 137103
Costarainera IM 18 828 137931
Bajardo IM 19 312 138243
Isolabona IM 19 679 138922
Pietrabruna IM 20 501 139423
San Lorenzo al Mare IM 20 1297 140720

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Sanremo (54807 inhabitants)
75 Km S of Cuneo (56081 inhabitants)
85 Km SW of Savona (61345 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 0.8 2022-06-04
19:59:22
43.7423 7.7757 12 2022-06-04
20:03:18
Sala Sismica INGV-Roma 105583141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-06-04 19:59:22 ± 0.15
Latitude 43.7423 ± 0.0063
Longitude 7.7757 ± 0.0075
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 105583141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 839
Semi-minor axis of confidence ellipse (meter) 115
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 144
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 279
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.16278
Epicentral distance of station farthest from the epicenter (degree) 0.55038
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 7
Type of magnitude ML
Reference to an origin 105583141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-06-04 20:03:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.ENR.HHZ. 2022-06-04T19:59:41.36 0.3 undecidable manual S 332 61.0944 91 0.01 70
GU.GBOS.HHE. 2022-06-04T19:59:39.74 0.3 undecidable manual S 5 55.5999 91 -0.14 69
GU.MGRO.HHZ. 2022-06-04T19:59:34.09 0.3 undecidable manual S 4 33.4443 92 0.14 71
FR.SAOF.HHZ.00 2022-06-04T19:59:33.67 0.3 undecidable manual S 327 32.3454 92 -0.01 73
GU.ENR.HHZ. 2022-06-04T19:59:33.62 0.6 undecidable manual P 332 61.0944 91 0.2 45
GU.GBOS.HHE. 2022-06-04T19:59:32.54 0.3 undecidable manual P 5 55.5999 91 -0.03 70
GU.MGRO.HHZ. 2022-06-04T19:59:29.20 0.3 undecidable manual P 4 33.4443 92 0.06 72
GU.BURY.HHZ. 2022-06-04T19:59:29.96 0.1 undecidable manual S 284 18.0708 99 0.08 100
FR.SAOF.HHZ.00 2022-06-04T19:59:28.85 0.3 undecidable manual P 327 32.3454 92 -0.14 72
GU.BURY.HHZ. 2022-06-04T19:59:26.68 0.1 undecidable manual P 284 18.0708 99 -0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
FR.SAOF.HHN.00 ML:0.8 0.000030912090000000004 0.0512 AML other m 2022-06-04T19:59:34.14
FR.SAOF.HHE.00 ML:1.0 0.0000422 0.06 AML other m 2022-06-04T19:59:34.05
GU.BURY.HHE. ML:0.8 0.000044366765 0.1792 AML other m 2022-06-04T19:59:30.21
GU.BURY.HHN. ML:0.6 0.000028570320000000005 0.064 AML other m 2022-06-04T19:59:30.27
GU.MGRO.HHE. ML:0.7 0.00002209529 0.3328 AML other m 2022-06-04T19:59:34.28
GU.ENR.HHE. ML:0.7 0.000009124841 0.064 AML other m 2022-06-04T19:59:42.60
GU.ENR.HHN. ML:0.7 0.000011132135 0.0512 AML other m 2022-06-04T19:59:42.36
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