INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

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) 44.32, 8.65 at 0 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 8 13251 13251
Cogoleto GE 8 9172 22423
Celle Ligure SV 9 5237 27660
Arenzano GE 9 11519 39179
Albisola Superiore SV 12 10163 49342
Albissola Marina SV 12 5487 54829
Savona SV 14 61345 116174
Stella SV 15 3009 119183
Mele GE 16 2725 121908
Vado Ligure SV 18 8336 130244
Bergeggi SV 19 1129 131373
Urbe SV 19 700 132073
Quiliano SV 20 7232 139305

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Savona (61345 inhabitants)
24 Km W of Genova (586655 inhabitants)
66 Km S of Alessandria (93943 inhabitants)
74 Km SE of Asti (76202 inhabitants)
88 Km E of Cuneo (56081 inhabitants)
89 Km NE of Sanremo (54807 inhabitants)
97 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 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 ± 0.15
Latitude 44.32 ± 0.02
Longitude 8.66 ± 0.01
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type controlled explosion
Origin ID 64852631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1920
Semi-minor axis of confidence ellipse (meter) 870
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 342
Circular confidence region, given by single value of horizontal uncertainty (meter) 1920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.90022
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 12
Magnitude information

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
IV.MC2.EHZ. 2019-01-22T11:30:54.66 3.0 undecidable manual Sn 7.52 0
IV.MNTP.HNZ. 2019-01-22T11:30:53.14 3.0 undecidable manual Sn 3.48 0
IT.VNF1.HGZ. 2019-01-22T11:30:35.18 3.0 negative manual Pg 13.91 0
IV.IOCA.HHZ. 2019-01-22T11:30:25.66 3.0 undecidable manual Pn -1.05 0
CH.FUORN.HHZ. 2019-01-22T11:30:24.45 3.0 undecidable manual Sn 2.43 0
IV.ARRO.EHZ. 2019-01-22T11:30:14.71 3.0 undecidable manual Pg 12.85 0
IV.CIMA.HNZ. 2019-01-22T11:30:08.40 3.0 negative manual Pn 2.34 0
IT.MTCL.HGZ. 2019-01-22T11:30:05.28 3.0 positive manual Pn 4.01 0
CH.FUORN.HHZ. 2019-01-22T11:29:50.93 3.0 undecidable manual Pn 1.56 0
IV.PII.HHZ. 2019-01-22T11:29:34.84 3.0 negative manual P 0.27 0
GU.TRAV.HHZ. 2019-01-22T11:29:33.53 3.0 negative manual P 0.75 0
GU.RSP.HHZ. 2019-01-22T11:29:31.95 3.0 positive manual P 0.05 0
GU.PZZ.HHZ. 2019-01-22T11:29:29.33 3.0 negative manual P -0.24 0
GU.BHB.HHZ. 2019-01-22T11:29:29.15 3.0 negative manual P -0.42 0
GU.STV.HHZ. 2019-01-22T11:29:27.07 3.0 negative manual P 0.25 0
IV.MONC.HHZ. 2019-01-22T11:29:26.38 3.0 negative manual P 0.44 0
GU.ENR.HHZ. 2019-01-22T11:29:25.08 3.0 undecidable manual P -0.52 0
IV.PLMA.HHZ. 2019-01-22T11:29:25.74 0.3 undecidable manual P 107 0.9002 50 0.25 62
FR.SAOF.HHZ.00 2019-01-22T11:29:25.16 0.3 undecidable manual P 247 0.858 50 0.39 61
IV.IMI.HHZ. 2019-01-22T11:29:21.60 0.3 undecidable manual P 233 0.6835 50 -0.18 66
IV.MSSA.HHZ. 2019-01-22T11:29:20.33 0.3 undecidable manual P 90 0.6169 50 -0.3 66
GU.MGRO.HHE. 2019-01-22T11:29:20.98 0.3 undecidable manual P 246 0.6673 50 -0.53 61
GU.ROTM.HHZ. 2019-01-22T11:29:19.70 3.0 undecidable manual P 0.13 0
GU.GBOS.HHZ. 2019-01-22T11:29:19.36 0.1 undecidable manual P 263 0.5891 50 -0.8 75
GU.GORR.HHZ. 2019-01-22T11:29:18.62 0.1 undecidable manual P 58 0.5369 90 -0.59 82
GU.CANO.HHZ. 2019-01-22T11:29:14.67 0.1 positive manual P 249 0.3202 90 0.3 93
IT.GNV.HGE. 2019-01-22T11:29:12.71 0.3 undecidable manual P 61 0.2266 90 0.41 69
IV.QLNO.HHZ. 2019-01-22T11:29:12.68 0.1 undecidable manual P 271 0.2212 90 0.5 91
GU.PCP.HHZ. 2019-01-22T11:29:12.44 0.1 positive manual P 340 0.2338 90 -0.02 100
IV.GENL.EHZ. 2019-01-22T11:29:12.97 0.1 undecidable manual P 69 0.2401 90 0.37 93
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 0.0001205 1 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