Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 28-05-2022 and time 10:29:44 (UTC) in region 4 km NE Seborga (IM)

A magnitude ML 1.6 earthquake occured in region: 4 km NE Seborga (IM), on

  • 28-05-2022 10:29:44 (UTC)
  • 28-05-2022 12:29:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8500, 7.7360 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Seborga IM 4 315 315
Ceriana IM 5 1250 1565
Sanremo IM 5 54807 56372
Perinaldo IM 5 870 57242
Ospedaletti IM 6 3367 60609
Bajardo IM 6 312 60921
Vallebona IM 7 1310 62231
Apricale IM 7 629 62860
Soldano IM 7 977 63837
San Biagio della Cima IM 8 1329 65166
Isolabona IM 8 679 65845
Dolceacqua IM 9 2074 67919
Bordighera IM 9 10469 78388
Taggia IM 9 14116 92504
Camporosso IM 9 5632 98136
Vallecrosia IM 10 6956 105092
Castel Vittorio IM 10 287 105379
Castellaro IM 11 1256 106635
Pigna IM 11 859 107494
Rocchetta Nervina IM 12 298 107792
Badalucco IM 12 1136 108928
Riva Ligure IM 12 2910 111838
Ventimiglia IM 12 24310 136148
Pompeiana IM 12 823 136971
Montalto Ligure IM 12 377 137348
Terzorio IM 13 216 137564
Santo Stefano al Mare IM 13 2197 139761
Pietrabruna IM 14 501 140262
Airole IM 15 407 140669
Cipressa IM 16 1290 141959
Molini di Triora IM 16 617 142576
Triora IM 16 355 142931
Carpasio IM 16 168 143099
Costarainera IM 17 828 143927
Civezza IM 18 609 144536
Olivetta San Michele IM 18 211 144747
San Lorenzo al Mare IM 18 1297 146044
Prelà IM 18 503 146547
Dolcedo IM 19 1415 147962
Vasia IM 20 389 148351

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NW of Sanremo (54807 inhabitants)
62 Km S of Cuneo (56081 inhabitants)
79 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
Bulletin
Rev1000 		ML 1.6 2022-05-28
10:29:44		 43.8498 7.7358 9 2023-01-31
19:03:15		 Bollettino Sismico Italiano INGV 105655501
Reviewed
Rev100 		ML 1.6 2022-05-28
10:29:44		 43.8912 7.7462 9 2022-05-28
10:39:27		 Sala Sismica INGV-Roma 105253991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-28 10:29:44 ± 0.18
Latitude 43.8498 ± 0.0126
Longitude 7.7358 ± 0.0125
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 105655501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1375
Semi-minor axis of confidence ellipse (meter) 990
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 202
Circular confidence region, given by single value of horizontal uncertainty (meter) 1370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.14569
Epicentral distance of station farthest from the epicenter (degree) 1.33999
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 105253991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-28 10:39:27

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 105655501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-10-25 14:19:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PCP.HHE. 2022-05-28T10:30:14.20 0.6 undecidable manual S 40 100.122 50 0.5 39
GU.RRL.HHE. 2022-05-28T10:30:08.04 0.3 undecidable manual P 328 140.4483 50 0.63 52
GU.RSP.HHE. 2022-05-28T10:30:08.10 0.3 undecidable manual P 346 148.74 50 -0.58 52
GU.RNCA.HHE. 2022-05-28T10:30:04.32 0.3 undecidable manual P 54 118.7922 50 0.26 60
GU.BHB.HHZ. 2022-05-28T10:30:03.42 0.3 undecidable manual P 341 115.5954 50 -0.15 62
GU.STV.HHZ. 2022-05-28T10:30:01.30 0.3 undecidable manual S 323 54.7008 50 -0.26 68
GU.PCP.HHE. 2022-05-28T10:30:01.89 0.1 undecidable manual P 40 100.122 50 0.7 73
GU.PZZ.HHZ. 2022-05-28T10:30:00.00 0.3 undecidable manual P 326 87.9453 50 0.69 56
GU.ENR.HHZ. 2022-05-28T10:29:59.88 0.6 undecidable manual S 329 49.1175 50 -0.21 46
GU.GBOS.HHZ. 2022-05-28T10:29:58.30 0.3 undecidable manual S 11 44.2224 50 -0.48 66
GU.RORO.HHZ. 2022-05-28T10:29:56.58 0.3 undecidable manual S 42 39.3273 50 -0.89 57
IV.QLNO.HHZ. 2022-05-28T10:29:56.82 0.1 undecidable manual P 43 71.6727 50 0.02 92
GU.STV.HHZ. 2022-05-28T10:29:54.45 0.1 undecidable manual P 323 54.7008 50 0.27 90
GU.CANO.HHZ. 2022-05-28T10:29:54.36 0.3 undecidable manual P 45 56.2992 50 -0.08 70
GU.ENR.HHZ. 2022-05-28T10:29:53.51 0.1 undecidable manual P 329 49.1175 50 0.18 93
FR.SAOF.HHZ.00 2022-05-28T10:29:52.13 0.6 undecidable manual S 316 20.9679 114 0.07 50
GU.GBOS.HHZ. 2022-05-28T10:29:52.71 0.3 undecidable manual P 11 44.2224 50 0.14 71
GU.RORO.HHZ. 2022-05-28T10:29:51.53 0.1 undecidable manual P 42 39.3273 50 -0.28 93
GU.BURY.HHZ. 2022-05-28T10:29:50.10 0.6 undecidable manual S 242 16.1727 120 -0.45 47
FR.SAOF.HHZ.00 2022-05-28T10:29:48.76 0.1 undecidable manual P 316 20.9679 114 0.07 100
GU.BURY.HHZ. 2022-05-28T10:29:47.63 0.1 undecidable manual P 242 16.1727 120 -0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BURY.HNN. ML:1.8 0.00061374225 0.2112 AML other m 2022-05-28T10:29:50.39
GU.BURY.HHN. ML:1.9 0.000732 0.18 AML other m 2022-05-28T10:29:50.39
GU.BURY.HHE. ML:1.8 0.0005542091999999999 0.1024 AML other m 2022-05-28T10:29:50.47
GU.BURY.HNE. ML:1.7 0.00054421265 0.0704 AML other m 2022-05-28T10:29:50.57
FR.SAOF.HHE.00 ML:1.8 0.00041200000000000004 0.3 AML other m 2022-05-28T10:29:52.83
FR.SAOF.HHN.00 ML:1.5 0.00025162595 0.0576 AML other m 2022-05-28T10:29:53.00
GU.GBOS.HHE. ML:1.2 0.00004455 0.4 AML other m 2022-05-28T10:29:58.74
GU.ENR.HHE. ML:1.5 0.00008666396500000001 0.0576 AML other m 2022-05-28T10:30:01.09
GU.STV.HHE. ML:1.5 0.00006755 0.32 AML other m 2022-05-28T10:30:01.62
GU.STV.HHN. ML:1.3 0.00004275701 1.8208 AML other m 2022-05-28T10:30:02.97
GU.ENR.HHN. ML:1.5 0.000087951635 0.0384 AML other m 2022-05-28T10:30:03.96
GU.CANO.HHE. ML:1.7 0.00010945 0.26 AML other m 2022-05-28T10:30:06.56
GU.GBOS.HHN. ML:0.9 0.00002728556 0.1152 AML other m 2022-05-28T10:30:07.24
GU.CANO.HHN. ML:1.8 0.00014299999999999998 0.24 AML other m 2022-05-28T10:30:07.45
IV.QLNO.HHE. ML:1.6 0.000062023475 0.2624 AML other m 2022-05-28T10:30:09.35
IV.QLNO.HHN. ML:1.9 0.00012545 0.26 AML other m 2022-05-28T10:30:09.49
GU.PZZ.HHN. ML:1.5 0.0000402302 0.2368 AML other m 2022-05-28T10:30:16.63
GU.PZZ.HHE. ML:1.6 0.00004593948 0.1856 AML other m 2022-05-28T10:30:18.77
GU.BHB.HHN. ML:1.5 0.000023111535 0.3008 AML other m 2022-05-28T10:30:19.98
GU.BHB.HHE. ML:1.4 0.000022233305000000003 0.224 AML other m 2022-05-28T10:30:21.37
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