Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.3 on date 28-11-1992 and time 14:17:52 (UTC) in region Costa Ligure Occidentale (Imperia)

A magnitude Md 2.3 earthquake occured in region: Costa Ligure Occidentale (Imperia), on

  • 28-11-1992 14:17:52 (UTC)
  • 28-11-1992 15:17:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6300, 8.1340 at 10 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
35 Km SE of Sanremo (54807 inhabitants)
80 Km SW of Savona (61345 inhabitants)
97 Km SE of Cuneo (56081 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 2.3
M 2.4 		1992-11-28
14:17:52		 43.63 8.134 11 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 176649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-11-28 14:17:52 ± 0.478
Latitude 43.6300 ± 0.0256
Longitude 8.1340 ± 0.0279
Depth (km) 11 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 176649

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) 3626.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.01918
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 176649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:45:34

M:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 176649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:42:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LRG.Z. 1992-11-28T14:18:32.90 10.0 undecidable manual SN 262 1.2987 -1.26 0.1
--.PGF.Z. 1992-11-28T14:18:32.10 10.0 undecidable manual SN 149 1.2543 -1 0.3
--.LPG.Z. 1992-11-28T14:18:31.30 10.0 undecidable manual PN! 332 2.0979 3.4 0
--.LPL.Z. 1992-11-28T14:18:31.50 10.0 undecidable manual PN! 332 2.1312 3.29 0
--.ORX.Z. 1992-11-28T14:18:30.41 10.0 undecidable manual PN! 356 1.998 3.97 0
--.LMR.Z. 1992-11-28T14:18:29.70 10.0 undecidable manual SN! 256 1.2099 -2.51 0
--.FRF.Z. 1992-11-28T14:18:26.20 10.0 undecidable manual SN! 266 1.0656 -2.77 0
--.RSP.Z. 1992-11-28T14:18:23.23 10.0 undecidable manual PN 337 1.6317 1.73 0.1
--.RRL.Z. 1992-11-28T14:18:22.88 10.0 undecidable manual PN 323 1.6095 1.83 0.1
--.CKI.Z. 1992-11-28T14:18:18.82 10.0 undecidable manual SG 7 0.7881 -1.55 0
--.BHB.Z. 1992-11-28T14:18:17.80 10.0 undecidable manual PN 332 1.3431 0.27 1.6
--.PGF.Z. 1992-11-28T14:18:16.50 10.0 undecidable manual PN 149 1.2543 0.38 1.4
--.LRG.Z. 1992-11-28T14:18:16.91 10.0 undecidable manual PN 262 1.2987 0.18 1.6
--.LMR.Z. 1992-11-28T14:18:15.30 10.0 undecidable manual PN 256 1.2099 -0.31 1.5
--.PZZ.Z. 1992-11-28T14:18:14.95 10.0 undecidable manual PN 319 1.1433 0.28 1.7
--.FRF.Z. 1992-11-28T14:18:13.41 10.0 undecidable manual PN 266 1.0656 -0.33 1.5
--.DOI.Z. 1992-11-28T14:18:13.50 10.0 undecidable manual PN 323 1.0767 -0.27 1.5
--.SBF.Z. 1992-11-28T14:18:12.29 10.0 undecidable manual SG 294 0.5439 -0.4 0.5
--.PCP.Z. 1992-11-28T14:18:11.30 10.0 undecidable manual PG 17 0.9546 -0.46 1.3
--.STV.Z. 1992-11-28T14:18:09.59 10.0 undecidable manual PG 317 0.8436 -0.2 1.6
--.CKI.Z. 1992-11-28T14:18:08.60 10.0 undecidable manual PG 7 0.7881 -0.18 1.6
--.ENR.Z. 1992-11-28T14:18:08.45 10.0 undecidable manual PG 319 0.777 -0.18 1.6
--.ROB.Z. 1992-11-28T14:18:06.81 10.0 undecidable manual PG 344 0.6882 -0.16 1.6
--.FIN.Z. 1992-11-28T14:18:05.20 10.0 undecidable manual PG 5 0.5772 0.42 1.6
--.SBF.Z. 1992-11-28T14:18:05.14 10.0 undecidable manual PG 294 0.5439 0.8 1.2
--.IMI.Z. 1992-11-28T14:18:00.13 10.0 undecidable manual PG 328 0.3219 -0.02 1.7
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