Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 16-10-2022 and time 18:43:30 (UTC) in region 3 km S Pontedassio (IM)

A magnitude ML 0.8 earthquake occured in region: 3 km S Pontedassio (IM), on

  • 16-10-2022 18:43:30 (UTC)
  • 16-10-2022 20:43:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9160, 8.0150 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pontedassio IM 3 2323 2323
Imperia IM 4 42034 44357
Diano Arentino IM 4 722 45079
Diano Castello IM 4 2214 47293
Diano San Pietro IM 5 1145 48438
Dolcedo IM 5 1415 49853
Vasia IM 5 389 50242
Diano Marina IM 6 5977 56219
Chiusavecchia IM 6 577 56796
Prelà IM 6 503 57299
Civezza IM 6 609 57908
Chiusanico IM 7 607 58515
Lucinasco IM 7 272 58787
San Bartolomeo al Mare IM 7 3129 61916
San Lorenzo al Mare IM 8 1297 63213
Cervo IM 8 1187 64400
Villa Faraldi IM 9 444 64844
Borgomaro IM 9 865 65709
Costarainera IM 9 828 66537
Pietrabruna IM 9 501 67038
Cipressa IM 9 1290 68328
Caravonica IM 10 282 68610
Testico SV 10 196 68806
Stellanello SV 10 808 69614
Aurigo IM 11 347 69961
Cesio IM 11 283 70244
Andora SV 11 7552 77796
Terzorio IM 12 216 78012
Pompeiana IM 12 823 78835
Santo Stefano al Mare IM 13 2197 81032
Carpasio IM 13 168 81200
Castellaro IM 13 1256 82456
Casanova Lerrone SV 13 749 83205
Laigueglia SV 13 1810 85015
Badalucco IM 13 1136 86151
Montalto Ligure IM 14 377 86528
Riva Ligure IM 14 2910 89438
Garlenda SV 15 1254 90692
Vessalico IM 15 282 90974
Taggia IM 15 14116 105090
Ranzo IM 16 557 105647
Borghetto d'Arroscia IM 16 456 106103
Rezzo IM 16 366 106469
Alassio SV 16 10934 117403
Pieve di Teco IM 17 1338 118741
Ortovero SV 17 1586 120327
Onzo SV 17 219 120546
Villanova d'Albenga SV 18 2657 123203
Vendone SV 18 388 123591
Aquila d'Arroscia IM 19 166 123757
Arnasco SV 20 645 124402
Ceriana IM 20 1250 125652

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Sanremo (54807 inhabitants)
57 Km SW of Savona (61345 inhabitants)
65 Km SE of Cuneo (56081 inhabitants)
92 Km SW of Genova (586655 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 2022-10-16
18:43:30		 43.9163 8.0148 10 2022-10-16
18:55:04		 Sala Sismica INGV-Roma 110889571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-16 18:43:30 ± 0.29
Latitude 43.9163 ± 0.0144
Longitude 8.0148 ± 0.0100
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 110889571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1676
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 166
Circular confidence region, given by single value of horizontal uncertainty (meter) 1680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 251
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.19515
Epicentral distance of station farthest from the epicenter (degree) 0.87324
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 110889571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-16 18:55:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PZZ.HHE. 2022-10-16T18:43:59.88 0.3 undecidable manual S 313 96.9252 50 0.61 57
GU.PCP.HHZ. 2022-10-16T18:43:55.29 0.3 undecidable manual S 31 81.1521 50 0.22 65
GU.STV.HHZ. 2022-10-16T18:43:50.67 0.6 undecidable manual S 304 65.8896 50 -0.31 44
GU.ENR.HHZ. 2022-10-16T18:43:49.00 0.6 undecidable manual S 306 58.8966 50 -0.12 47
GU.PZZ.HHE. 2022-10-16T18:43:47.85 0.1 undecidable manual P 313 96.9252 50 0.62 76
IV.QLNO.HHZ. 2022-10-16T18:43:47.32 0.6 undecidable manual S 30 52.4031 50 -0.06 48
GU.PCP.HHZ. 2022-10-16T18:43:45.13 0.1 undecidable manual P 31 81.1521 50 0.34 85
FR.SAOF.HHE.00 2022-10-16T18:43:43.23 0.3 undecidable manual S 282 37.629 50 -0.23 71
GU.GBOS.HHZ. 2022-10-16T18:43:43.60 0.3 undecidable manual S 339 38.628 50 -0.12 72
GU.STV.HHZ. 2022-10-16T18:43:42.68 0.1 undecidable manual P 304 65.8896 50 0.24 90
GU.CANO.HHE. 2022-10-16T18:43:42.56 0.3 undecidable manual S 29 36.8298 50 -0.67 63
GU.ENR.HHZ. 2022-10-16T18:43:41.70 1.0 positive manual P 306 58.8966 50 0.34 22
IV.QLNO.HHZ. 2022-10-16T18:43:40.42 0.6 undecidable manual P 30 52.4031 50 0.06 48
GU.GBOS.HHZ. 2022-10-16T18:43:38.31 0.1 undecidable manual P 339 38.628 50 0.06 98
GU.MGRO.HHZ. 2022-10-16T18:43:38.96 0.6 undecidable manual S 310 21.6672 115 -0.11 50
GU.CANO.HHE. 2022-10-16T18:43:37.79 0.1 undecidable manual P 29 36.8298 50 -0.18 96
FR.SAOF.HHE.00 2022-10-16T18:43:37.60 0.1 undecidable manual P 282 37.629 50 -0.49 90
GU.MGRO.HHZ. 2022-10-16T18:43:35.45 0.1 positive manual P 310 21.6672 115 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.MGRO.HHN. ML:0.7 0.000037226705 0.1024 AML other m 2022-10-16T18:43:39.67
GU.MGRO.HHE. ML:0.6 0.00002831135 0.128 AML other m 2022-10-16T18:43:40.14
IV.QLNO.HHE. ML:0.6 0.000012377099499999999 0.1408 AML other m 2022-10-16T18:43:51.58
IV.QLNO.HHN. ML:0.8 0.000016854460000000003 0.1664 AML other m 2022-10-16T18:43:51.90
GU.ENR.HHN. ML:0.8 0.000016632531999999998 0.0896 AML other m 2022-10-16T18:43:49.95
GU.ENR.HHE. ML:0.8 0.0000132464615 0.064 AML other m 2022-10-16T18:43:50.26
GU.STV.HHE. ML:1.0 0.00002216791 0.128 AML other m 2022-10-16T18:43:50.70
GU.STV.HHN. ML:0.7 0.000010831155 0.128 AML other m 2022-10-16T18:43:51.82
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