Earthquake with magnitude of ML 1.0 on date 01-02-2022 and time 07:55:07 (Italy) in region Costa Ligure Occidentale (Imperia)

A magnitude ML 1.0 earthquake occured in region: Costa Ligure Occidentale (Imperia), on

  • 01-02-2022 06:55:07 (UTC)
  • 01-02-2022 07:55:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9620, 7.6130 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Pigna IM 5 859 859
Castel Vittorio IM 6 287 1146
Rocchetta Nervina IM 8 298 1444
Isolabona IM 9 679 2123
Apricale IM 10 629 2752
Bajardo IM 11 312 3064
Airole IM 11 407 3471
Perinaldo IM 12 870 4341
Olivetta San Michele IM 12 211 4552
Triora IM 13 355 4907
Dolceacqua IM 13 2074 6981
Molini di Triora IM 13 617 7598
Soldano IM 15 977 8575
Ceriana IM 16 1250 9825
San Biagio della Cima IM 16 1329 11154
Camporosso IM 16 5632 16786
Seborga IM 16 315 17101
Vallebona IM 17 1310 18411
Briga Alta CN 18 39 18450
Vallecrosia IM 19 6956 25406
Montalto Ligure IM 19 377 25783
Ventimiglia IM 19 24310 50093
Badalucco IM 20 1136 51229
Ospedaletti IM 20 3367 54596

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Sanremo (54807 inhabitants)
48 Km S of Cuneo (56081 inhabitants)
79 Km W 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
Bulletin
Rev1000
ML 1.0 2022-02-01
06:55:07
43.9623 7.6133 10 2022-07-08
12:33:42
Bollettino Sismico Italiano INGV 103082741
Reviewed
Rev100
ML 1.2 2022-02-01
06:55:07
43.9688 7.6117 9 2022-02-01
07:01:17
Sala Sismica INGV-Roma 100444011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-01 06:55:07 ± 0.13
Latitude 43.9623 ± 0.0090
Longitude 7.6133 ± 0.0100
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 103082741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 927
Semi-minor axis of confidence ellipse (meter) 828
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 167
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.34984
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 103082741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-11 14:07:39

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 100444011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-01 07:01:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.STV.HHZ. 2022-02-01T06:55:20.18 0.3 undecidable manual S 324 38.8278 50 -0.54 65
GU.GBOS.HHE. 2022-02-01T06:55:19.54 0.6 undecidable manual S 30 35.8419 50 -0.38 45
GU.ENR.HHZ. 2022-02-01T06:55:18.85 0.6 undecidable manual S 332 33.4443 50 -0.44 45
GU.STV.HHZ. 2022-02-01T06:55:15.47 0.3 undecidable manual P 324 38.8278 50 0.3 69
GU.GBOS.HHE. 2022-02-01T06:55:15.01 0.1 undecidable manual P 30 35.8419 50 0.29 93
GU.IMI.HHZ. 2022-02-01T06:55:15.60 0.6 undecidable manual S 104 23.0547 113 -0.69 42
GU.MGRO.HHZ. 2022-02-01T06:55:14.51 0.6 undecidable manual S 60 17.871 119 -0.17 49
GU.ENR.HHZ. 2022-02-01T06:55:14.76 0.3 undecidable manual P 332 33.4443 50 0.41 68
GU.BURY.HNZ. 2022-02-01T06:55:14.89 0.6 undecidable manual S 193 20.4684 115 -0.57 44
GU.BURY.HNZ. 2022-02-01T06:55:12.39 0.1 undecidable manual P 193 20.4684 115 0.25 96
GU.IMI.HHZ. 2022-02-01T06:55:12.69 0.3 undecidable manual P 104 23.0547 113 0.07 74
FR.SAOF.HHZ.00 2022-02-01T06:55:11.09 0.6 undecidable manual S 299 5.4945 151 -0.39 48
GU.MGRO.HHZ. 2022-02-01T06:55:11.99 0.1 undecidable manual P 60 17.871 119 0.31 95
FR.SAOF.HHZ.00 2022-02-01T06:55:10.02 0.1 undecidable manual P 299 5.4945 151 0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
FR.SAOF.HHE.00 ML:1.3 0.0003495 0.06 AML other m 2022-02-01T06:55:11.16
FR.SAOF.HHN.00 ML:1.5 0.000479 0.06 AML other m 2022-02-01T06:55:11.31
GU.MGRO.HNN. ML:1.0 0.00007807225000000001 1.04 AML other m 2022-02-01T06:55:14.80
GU.MGRO.HNE. ML:1.1 0.00009942543000000001 1.0496 AML other m 2022-02-01T06:55:14.36
GU.IMI.HHN. ML:0.7 0.0000325418115 0.9824 AML other m 2022-02-01T06:55:16.24
GU.IMI.HHE. ML:1.4 0.0001719906 0.3008 AML other m 2022-02-01T06:55:16.58
GU.STV.HHN. ML:0.4 0.00001159498 0.96 AML other m 2022-02-01T06:55:19.33
GU.STV.HHE. ML:0.8 0.000021495150500000002 1.44 AML other m 2022-02-01T06:55:20.93
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