Earthquake with magnitude of Md 2.0 on date 28-01-1992 and time 03:26:22 (Italy) in region Costa Ligure orientale (La Spezia)

A magnitude Md 2.0 earthquake occured in region: Costa Ligure orientale (La Spezia), on

  • 28-01-1992 02:26:22 (UTC)
  • 28-01-1992 03:26:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9630, 9.7170 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Portovenere SP 14 3630 3630
Riomaggiore SP 15 1576 5206
La Spezia SP 19 93959 99165
Vernazza SP 19 848 100013

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SW of La Spezia (93959 inhabitants)
33 Km W of Carrara (63133 inhabitants)
35 Km W of Massa (69479 inhabitants)
44 Km W of Viareggio (62467 inhabitants)
61 Km W of Pisa (89158 inhabitants)
64 Km W of Lucca (89046 inhabitants)
66 Km NW of Livorno (159219 inhabitants)
80 Km SE of Genova (586655 inhabitants)
96 Km W of Pistoia (90315 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 2.0 1992-01-28
02:26:22
43.963 9.717 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 157609
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-01-28 02:26:22 ± 1.1
Latitude 43.9630 ± 0.0650
Longitude 9.7170 ± 0.0998
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 157609

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) 10769.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 315
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00996
Epicentral distance of station farthest from the epicenter (degree) 0.02113
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 157609
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:27:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LSD.Z. 1992-01-28T02:27:01.10 10.0 undecidable manual PN 309 2.3421 -0.17 1.3
--.RRL.Z. 1992-01-28T02:27:01.88 10.0 undecidable manual PN 294 2.2866 1.34 0.2
--.CKI.Z. 1992-01-28T02:27:00.00 10.0 undecidable manual SN 293 1.1211 -0.18 0.6
--.ORX.Z. 1992-01-28T02:26:57.12 10.0 undecidable manual PN 323 2.0646 -0.29 1.2
--.STV.Z. 1992-01-28T02:26:53.14 10.0 undecidable manual PN 279 1.7316 0.34 1.4
--.ENR.Z. 1992-01-28T02:26:51.89 10.0 undecidable manual PN 278 1.665 0.02 1.6
--.ROB.Z. 1992-01-28T02:26:47.14 10.0 undecidable manual PN 283 1.3542 -0.56 1.1
--.CKI.Z. 1992-01-28T02:26:45.00 10.0 undecidable manual PN 293 1.1211 0.57 1.1
--.FIN.Z. 1992-01-28T02:26:43.30 10.0 undecidable manual PN 282 1.11 -0.89 0.6
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