Earthquake with magnitude of ML 0.7 on date 09-05-2020 and time 06:27:55 (Italy) in region Costa Ligure Occidentale (Imperia)

A magnitude ML 0.7 earthquake occured in region: Costa Ligure Occidentale (Imperia), on

  • 09-05-2020 04:27:55 (UTC)
  • 09-05-2020 06:27:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9770, 7.5920 at 11 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
Pigna IM 8 859 859
Castel Vittorio IM 8 287 1146
Rocchetta Nervina IM 10 298 1444
Isolabona IM 11 679 2123
Airole IM 12 407 2530
Apricale IM 12 629 3159
Olivetta San Michele IM 12 211 3370
Bajardo IM 13 312 3682
Perinaldo IM 14 870 4552
Triora IM 14 355 4907
Dolceacqua IM 14 2074 6981
Molini di Triora IM 15 617 7598
Soldano IM 17 977 8575
Briga Alta CN 18 39 8614
Ceriana IM 18 1250 9864
San Biagio della Cima IM 18 1329 11193
Camporosso IM 18 5632 16825
Seborga IM 19 315 17140
Vallebona IM 19 1310 18450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Sanremo (54807 inhabitants)
47 Km S of Cuneo (56081 inhabitants)
80 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
Reviewed
Rev100
ML 0.7 2020-05-09
04:27:55
43.9767 7.5917 11 2020-05-09
04:35:55
Sala Sismica INGV-Roma 78970211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-09 04:27:55 ± 0.27
Latitude 43.9767 ± 0.0297
Longitude 7.5917 ± 0.0262
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78970211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3750
Semi-minor axis of confidence ellipse (meter) 1140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 3750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.62953
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.0
Num. used stations 4
Type of magnitude ML
Reference to an origin 78970211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-09 04:35:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PZZ.HHZ. 2020-05-09T04:28:08.49 0.1 undecidable manual P 327 69.8745 50 0.97 68
GU.STV.HHZ. 2020-05-09T04:28:06.85 0.1 undecidable manual S 325 36.5412 50 -0.71 81
IV.IMI.HHZ. 2020-05-09T04:28:04.23 0.1 undecidable manual S 107 25.1526 50 -0.29 94
GU.RORO.HHE. 2020-05-09T04:28:02.99 0.1 undecidable manual P 68 40.7259 50 -0.03 96
GU.STV.HHZ. 2020-05-09T04:28:02.63 0.1 undecidable manual P 325 36.5412 50 0.25 93
GU.ENR.HHZ. 2020-05-09T04:28:01.61 0.1 undecidable manual P 334 30.9468 50 0.1 96
IV.IMI.HHZ. 2020-05-09T04:28:00.85 0.1 undecidable manual P 107 25.1526 50 0.22 95
FR.SAOF.HHZ.00 2020-05-09T04:27:58.77 0.1 undecidable manual S 288 3.2967 163 -0.5 93
FR.SAOF.HHZ.00 2020-05-09T04:27:57.75 0.1 undecidable manual P 288 3.2967 163 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHE. ML:0.7 0.000024849999999999998 0.08 AML other m 2020-05-09T04:28:01.71
GU.ENR.HHN. ML:0.7 0.000026549999999999998 0.6 AML other m 2020-05-09T04:28:05.44
GU.STV.HHE. ML:0.7 0.000017500000000000002 0.86 AML other m 2020-05-09T04:28:07.28
GU.STV.HHN. ML:0.7 0.00001925 1.56 AML other m 2020-05-09T04:28:07.18
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