Earthquake (controlled explosion) with magnitude of ML 1.9 on date 22-01-2019 and time 12:29:07 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude ML 1.9 (controlled explosion) earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 22-01-2019 11:29:07 (UTC)
  • 22-01-2019 12:29:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.31, 8.66 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: controlled explosion.

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
Varazze SV 9 13251 13251
Cogoleto GE 9 9172 22423
Celle Ligure SV 10 5237 27660
Arenzano GE 11 11519 39179
Albisola Superiore SV 12 10163 49342
Albissola Marina SV 13 5487 54829
Savona SV 14 61345 116174
Stella SV 16 3009 119183
Mele GE 17 2725 121908
Vado Ligure SV 18 8336 130244
Bergeggi SV 18 1129 131373
Quiliano SV 20 7232 138605

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Savona (61345 inhabitants)
25 Km W of Genova (586655 inhabitants)
67 Km S of Alessandria (93943 inhabitants)
75 Km SE of Asti (76202 inhabitants)
88 Km NE of Sanremo (54807 inhabitants)
89 Km E of Cuneo (56081 inhabitants)
96 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
Rev 1000 ML 1.9 2019-01-22
11:29:07
44.31 8.66 0 2019-08-22
08:24:55
Bollettino Sismico Italiano INGV 67275461
Rev 100 ML 1.9 2019-01-22
11:29:07
44.32 8.66 0 2019-01-22
11:41:54
Sala Sismica INGV-Roma 64852631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-22 11:29:07 ± 0.13
Latitude 44.31 ± 0.01
Longitude 8.66 ± 0.01
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type controlled explosion
Origin ID 67275461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1350
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 344
Circular confidence region, given by single value of horizontal uncertainty (meter) 1350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
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) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.22483
Epicentral distance of station farthest from the epicenter (degree) 1.77796
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 67275461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-05 09:26:42

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 64852631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-22 11:41:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
RD.PGF.BHZ. 2019-01-22T11:29:38.12 0.3 undecidable manual P 172 1.778 38 -1.97 19
GU.TRAV.HHZ. 2019-01-22T11:29:33.38 0.3 undecidable manual P 332 1.3643 50 0.04 60
GU.RSP.HHZ. 2019-01-22T11:29:31.93 0.3 undecidable manual P 311 1.2959 50 -0.25 59
GU.PZZ.HHZ. 2019-01-22T11:29:29.18 0.3 undecidable manual P 281 1.1188 50 0.03 64
GU.BHB.HHZ. 2019-01-22T11:29:29.01 0.3 undecidable manual P 298 1.1233 50 -0.21 62
GU.STV.HHZ. 2019-01-22T11:29:26.51 0.3 undecidable manual P 267 0.956 50 0.15 65
IV.MONC.HHZ. 2019-01-22T11:29:26.33 0.3 undecidable manual P 326 0.9236 50 0.53 60
IV.PLMA.HHZ. 2019-01-22T11:29:25.74 0.3 undecidable manual P 106 0.8948 50 0.43 62
GU.ENR.HHZ. 2019-01-22T11:29:25.09 0.3 undecidable manual P 265 0.8903 50 -0.15 66
FR.SAOF.HHZ.00 2019-01-22T11:29:25.16 0.3 undecidable manual P 248 0.8571 50 0.5 62
IV.IMI.HHZ. 2019-01-22T11:29:21.60 0.3 undecidable manual P 234 0.6799 50 -0.03 71
IV.MSSA.HHZ. 2019-01-22T11:29:20.33 0.3 undecidable manual P 89 0.6133 50 -0.17 70
GU.MGRO.HHE. 2019-01-22T11:29:20.98 0.3 undecidable manual P 247 0.6664 50 -0.42 65
GU.ROTM.HHZ. 2019-01-22T11:29:19.70 0.3 undecidable manual P 338 0.581 50 -0.25 69
GU.GBOS.HHZ. 2019-01-22T11:29:19.36 0.1 undecidable manual P 264 0.59 50 -0.74 79
GU.GORR.HHZ. 2019-01-22T11:29:18.62 0.1 undecidable manual P 56 0.5405 90 -0.58 85
GU.CANO.HHZ. 2019-01-22T11:29:14.67 0.1 positive manual P 251 0.3193 90 0.4 94
IV.QLNO.HHZ. 2019-01-22T11:29:12.68 0.1 undecidable manual P 274 0.2248 90 0.51 93
IV.GENL.EHZ. 2019-01-22T11:29:12.97 0.1 undecidable manual P 67 0.2419 90 0.42 95
GU.PCP.HHZ. 2019-01-22T11:29:12.44 0.1 positive manual P 341 0.2446 90 -0.18 100
IT.GNV.HGE. 2019-01-22T11:29:12.71 0.3 undecidable manual P 58 0.2293 90 0.43 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHN. ML:1.4 0.000154 1.22 AML other m 2019-01-22T11:29:20.68
GU.CANO.HHN. ML:1.7 0.000214 1.04 AML other m 2019-01-22T11:29:22.00
GU.PCP.HHE. ML:2.1 0.0008075 1 AML other m 2019-01-22T11:29:26.66
IV.QLNO.HHE. ML:1.5 0.0002 1.14 AML other m 2019-01-22T11:29:26.92
GU.ENR.HHE. ML:1.9 8.73E-5 0.9 AML other m 2019-01-22T11:29:27.27
GU.PCP.HHN. ML:1.9 0.000486 0.92 AML other m 2019-01-22T11:29:27.59
GU.STV.HHE. ML:1.8 5.2965E-5 0.28 AML other m 2019-01-22T11:29:28.17
GU.PZZ.HHE. ML:2.3 0.00013395 0.74 AML other m 2019-01-22T11:29:30.46
GU.PZZ.HHN. ML:2.3 0.0001525 0.62 AML other m 2019-01-22T11:29:30.85
GU.CANO.HHE. ML:2.1 0.0004795 0.76 AML other m 2019-01-22T11:29:32.17
GU.GORR.HHN. ML:1.8 0.0001192 1.1 AML other m 2019-01-22T11:29:37.09
GU.GORR.HHE. ML:1.8 0.000121 1.14 AML other m 2019-01-22T11:29:41.57
GU.ROTM.HHN. ML:2.4 0.0005375 0.84 AML other m 2019-01-22T11:29:44.42
GU.ROTM.HHE. ML:2.3 0.000391 1.28 AML other m 2019-01-22T11:29:46.81
GU.ENR.HHN. ML:2.1 0.00012082545 0.9984 AML other m 2019-01-22T11:29:51.20
GU.STV.HHN. ML:1.7 4.9E-5 0.98 AML other m 2019-01-22T11:29:55.13
GU.TRAV.HHN. ML:1.8 2.87E-5 1.22 AML other m 2019-01-22T11:30:04.32
GU.TRAV.HHE. ML:1.8 3.07E-5 0.8 AML other m 2019-01-22T11:30:06.30
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download