Earthquake Costa Ligure centro-occidentale (Savona), Magnitude ML 1.9, 22 January 2019 time 12:29:07 (Timezone Italy)

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.

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Display location by

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).

Municipality	Region	Distance (km)	Inhabitants	Cumulative Inhabitants
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

Not available maps for this sismic event.

Seismic hazard

Not available maps for this sismic event.

Shakemap

Not available maps for this sismic event.

Felt maps

Not available maps for this sismic event.

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

Not available TDMT solution for this seismic event.

Focal Mechanism in the area

Not available maps for this sismic event.

Download

Type	Description	Link
QuakeML - small	Event, Origin, FocalMechanism	Download
QuakeML - full	Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude	Download

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)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

Origin

Uncertainty

Quality

ML:1.9

ML:1.9