Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 14-01-1989 and time 12:39:43 (UTC) in region Mar Ligure (MARE)

A magnitude Md 2.5 earthquake occured in region: Mar Ligure (MARE), on

  • 14-01-1989 12:39:43 (UTC)
  • 14-01-1989 13:39:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7140, 9.3270 at 5 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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
60 Km SW of La Spezia (93959 inhabitants)
74 Km SW of Carrara (63133 inhabitants)
75 Km W of Massa (69479 inhabitants)
76 Km W of Viareggio (62467 inhabitants)
81 Km W of Livorno (159219 inhabitants)
84 Km SE of Genova (586655 inhabitants)
86 Km W of Pisa (89158 inhabitants)
95 Km SE of Savona (61345 inhabitants)
96 Km W of Lucca (89046 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 		Md 2.5
M 2.8 		1989-01-14
12:39:43		 43.714 9.327 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 85319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-14 12:39:43 ± 0.189
Latitude 43.7140 ± 0.0121
Longitude 9.3270 ± 0.0151
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 85319

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1813.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00680
Epicentral distance of station farthest from the epicenter (degree) 0.01943
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 85319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:20:06

M:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 85319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LRG.Z. 1989-01-14T12:40:46.80 10.0 undecidable manual SN 263 2.1534 0.05 0.6
--.LMR.Z. 1989-01-14T12:40:43.60 10.0 undecidable manual SN 260 2.0646 -1.1 0.1
--.FRF.Z. 1989-01-14T12:40:40.70 10.0 undecidable manual SN 266 1.9425 -0.86 0.2
--.PZZ.Z. 1989-01-14T12:40:40.78 10.0 undecidable manual SN! 296 1.776 3.1 0
--.STV.Z. 1989-01-14T12:40:31.64 10.0 undecidable manual SN 290 1.5318 -0.13 0.8
--.SBF.Z. 1989-01-14T12:40:28.40 10.0 undecidable manual SN 276 1.3653 0.44 0.5
--.ROB.Z. 1989-01-14T12:40:24.24 10.0 undecidable manual SN 299 1.1988 0.41 0.6
--.LRG.Z. 1989-01-14T12:40:20.20 10.0 undecidable manual PN 263 2.1534 0.19 1.5
--.BOB.Z. 1989-01-14T12:40:19.34 10.0 undecidable manual SG 4 1.0545 -0.89 0.2
--.IMI.Z. 1989-01-14T12:40:19.75 10.0 undecidable manual SG 280 1.0545 -0.38 0.7
--.LMR.Z. 1989-01-14T12:40:18.50 10.0 undecidable manual PN 260 2.0646 -0.33 1.3
--.CKI.Z. 1989-01-14T12:40:18.81 10.0 undecidable manual SG 313 1.0212 -0.64 0.5
--.PZZ.Z. 1989-01-14T12:40:17.57 10.0 undecidable manual PN! 296 1.776 2.8 0
--.FIN.Z. 1989-01-14T12:40:16.93 10.0 undecidable manual SG 301 0.9324 0.29 0.6
--.FRF.Z. 1989-01-14T12:40:16.80 10.0 undecidable manual PN 266 1.9425 -0.21 1.5
--.BDI.Z. 1989-01-14T12:40:16.43 10.0 undecidable manual SG 68 0.9657 -1.33 0
--.DOI.Z. 1989-01-14T12:40:13.50 10.0 undecidable manual PN 298 1.6761 0 1.8
--.STV.Z. 1989-01-14T12:40:12.20 10.0 undecidable manual PN 290 1.5318 0.66 0.9
--.GEN.Z. 1989-01-14T12:40:10.39 10.0 undecidable manual SG 338 0.7548 -0.27 0.8
--.SBF.Z. 1989-01-14T12:40:09.50 10.0 undecidable manual PN 276 1.3653 0.34 1.7
--.ROB.Z. 1989-01-14T12:40:06.28 10.0 undecidable manual PN 299 1.1988 -0.49 1.3
--.CVF.Z. 1989-01-14T12:40:06.50 10.0 undecidable manual PN 196 1.1877 -0.2 1.7
--.BOB.Z. 1989-01-14T12:40:05.30 10.0 undecidable manual PG 4 1.0545 0.34 1.7
--.IMI.Z. 1989-01-14T12:40:05.00 10.0 undecidable manual PG 280 1.0545 0.36 1.6
--.FIN.Z. 1989-01-14T12:40:03.20 10.0 undecidable manual PG 301 0.9324 0.4 1.5
--.CKI.Z. 1989-01-14T12:40:03.91 10.0 positive manual PG 313 1.0212 -0.34 3.4
--.BDI.Z. 1989-01-14T12:40:02.95 10.0 undecidable manual PG 68 0.9657 -0.32 1.4
--.PII.Z. 1989-01-14T12:40:02.40 10.0 undecidable manual PG 88 0.8658 1.24 0.3
--.GEN.Z. 1989-01-14T12:39:59.87 10.0 undecidable manual PG 338 0.7548 0.7 0.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download