Earthquake with magnitude of ML 1.2 on date 09-05-2020 and time 22:24:50 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude ML 1.2 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 09-05-2020 20:24:50 (UTC)
  • 09-05-2020 22:24:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1360, 8.6500 at 8 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Savona (61345 inhabitants)
38 Km SW of Genova (586655 inhabitants)
78 Km E of Sanremo (54807 inhabitants)
87 Km S of Alessandria (93943 inhabitants)
92 Km SE of Asti (76202 inhabitants)
92 Km E of Cuneo (56081 inhabitants)
94 Km W of La Spezia (93959 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 1.2 2020-05-09
20:24:50
44.1357 8.6503 8 2020-11-19
12:36:45
Bollettino Sismico Italiano INGV 79325741
Reviewed
Rev100
ML 1.2 2020-05-09
20:24:49
44.1303 8.6533 4 2020-05-09
20:30:59
Sala Sismica INGV-Roma 78993221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-09 20:24:50 ± 0.08
Latitude 44.1357 ± 0.0036
Longitude 8.6503 ± 0.0038
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79325741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.60619
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 79325741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-19 13:40:48

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 78993221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-09 20:30:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CARD.HHZ. 2020-05-09T20:25:40.42 3.0 undecidable manual S 0.08 0
RD.PGF.BHZ. 2020-05-09T20:25:18.89 1.0 undecidable manual P 171 178.2882 50 -0.43 16
GU.MAIM.HHZ. 2020-05-09T20:25:14.95 0.1 undecidable manual P 99 148.9398 50 0.17 77
GU.BHB.HHZ. 2020-05-09T20:25:12.61 1.0 undecidable manual P 306 134.4654 50 0.06 20
GU.GORR.HHN. 2020-05-09T20:25:12.38 0.6 undecidable manual S 44 72.9714 50 -0.28 44
GU.GRAM.HHZ. 2020-05-09T20:25:10.34 0.6 undecidable manual P 70 119.0919 50 0.16 41
GU.GBOS.HHZ. 2020-05-09T20:25:10.72 0.6 undecidable manual S 281 65.49 50 0.06 47
GU.EQUI.HHN. 2020-05-09T20:25:10.26 0.6 undecidable manual P 88 119.6913 50 -0.01 42
IV.IMI.HHZ. 2020-05-09T20:25:10.87 0.6 undecidable manual S 248 65.3901 50 0.25 45
IT.ACQ.HGZ. 2020-05-09T20:25:09.79 0.6 undecidable manual S 346 62.493 50 -0.06 47
GU.RORO.HHZ. 2020-05-09T20:25:05.73 0.3 undecidable manual S 267 46.62 50 0.12 72
GU.RNCA.HHZ. 2020-05-09T20:25:05.26 0.6 undecidable manual S 33 44.2224 50 0.28 47
GU.PCP.HHZ. 2020-05-09T20:25:05.39 0.6 undecidable manual S 350 45.7209 50 0 49
GU.GORR.HHN. 2020-05-09T20:25:03.14 0.1 undecidable manual P 44 72.9714 50 0.06 92
GU.CANO.HHZ. 2020-05-09T20:25:02.25 0.3 undecidable manual S 284 33.8439 103 0.2 72
IV.QLNO.HHZ. 2020-05-09T20:25:01.42 0.6 undecidable manual S 311 31.9458 104 -0.01 50
IT.ACQ.HGZ. 2020-05-09T20:25:01.60 1.0 undecidable manual P 346 62.493 50 0.14 23
IV.IMI.HHZ. 2020-05-09T20:25:01.76 0.1 undecidable manual P 248 65.3901 50 -0.15 92
GU.GBOS.HHZ. 2020-05-09T20:25:01.86 0.6 undecidable manual P 281 65.49 50 -0.07 47
GU.RNCA.HHZ. 2020-05-09T20:24:58.41 0.6 undecidable manual P 33 44.2224 50 -0.24 47
GU.PCP.HHZ. 2020-05-09T20:24:58.63 0.3 undecidable manual P 350 45.7209 50 -0.25 70
GU.RORO.HHZ. 2020-05-09T20:24:58.73 0.3 undecidable manual P 267 46.62 50 -0.28 69
GU.GENL.EHZ. 2020-05-09T20:24:58.23 0.6 undecidable manual P 40 39.2274 50 0.34 46
IV.QLNO.HHZ. 2020-05-09T20:24:56.56 0.1 undecidable manual P 311 31.9458 104 -0.04 100
GU.CANO.HHZ. 2020-05-09T20:24:56.93 0.3 undecidable manual P 284 33.8439 103 -0.03 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHE. ML:0.9 0.00003718107000000001 1.8336 AML other m 2020-05-09T20:25:01.04
GU.CANO.HHN. ML:1.4 0.00011629115499999999 0.1408 AML other m 2020-05-09T20:25:02.68
GU.CANO.HHE. ML:1.4 0.000098302235 0.2304 AML other m 2020-05-09T20:25:03.20
IV.QLNO.HHN. ML:1.2 0.00006397668 0.2816 AML other m 2020-05-09T20:25:03.54
GU.RORO.HHE. ML:1.8 0.00020320389999999998 0.7296 AML other m 2020-05-09T20:25:04.41
GU.PCP.HHN. ML:1.2 0.000045869915 0.256 AML other m 2020-05-09T20:25:05.53
GU.PCP.HHE. ML:1.2 0.000048119305 0.1792 AML other m 2020-05-09T20:25:05.82
GU.RORO.HHN. ML:1.2 0.000051499885 0.1664 AML other m 2020-05-09T20:25:06.32
GU.RNCA.HHE. ML:0.8 0.000019464235 0.2816 AML other m 2020-05-09T20:25:07.38
GU.RNCA.HHN. ML:0.7 0.000013482872 0.384 AML other m 2020-05-09T20:25:09.32
GU.GBOS.HHE. ML:0.7 0.0000116264595 0.1792 AML other m 2020-05-09T20:25:12.43
GU.GBOS.HHN. ML:0.7 0.000011239295 0.3584 AML other m 2020-05-09T20:25:15.53
GU.BHB.HHN. ML:1.4 0.00001678089 0.4352 AML other m 2020-05-09T20:25:33.44
GU.BHB.HHE. ML:1.4 0.00001395555 0.592 AML other m 2020-05-09T20:25:48.65
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