Earthquake with magnitude of Md 2.3 on date 08-02-1992 and time 18:47:02 (Italy) in region 2 km W Castel Giorgio (TR)

A magnitude Md 2.3 earthquake occured in region: 2 km W Castel Giorgio (TR), on

  • 08-02-1992 17:47:02 (UTC)
  • 08-02-1992 18:47:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7100, 11.9620 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castel Giorgio TR 2 2131 2131
San Lorenzo Nuovo VT 5 2091 4222
Castel Viscardo TR 6 2938 7160
Bolsena VT 8 3991 11151
Grotte di Castro VT 8 2683 13834
Acquapendente VT 9 5506 19340
Gradoli VT 11 1353 20693
Allerona TR 12 1794 22487
Porano TR 12 1966 24453
Proceno VT 12 557 25010
Orvieto TR 12 20630 45640
Onano VT 12 995 46635
Latera VT 14 836 47471
Bagnoregio VT 15 3650 51121
Lubriano VT 15 909 52030
Ficulle TR 17 1669 53699
Fabro TR 18 2876 56575
Capodimonte VT 18 1731 58306
San Casciano dei Bagni SI 19 1632 59938
Valentano VT 19 2868 62806
Marta VT 20 3499 66305
Montefiascone VT 20 13432 79737

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of Viterbo (67173 inhabitants)
56 Km SW of Perugia (166134 inhabitants)
59 Km W of Terni (111501 inhabitants)
67 Km W of Foligno (57155 inhabitants)
69 Km E of Grosseto (82087 inhabitants)
70 Km N of Civitavecchia (52991 inhabitants)
85 Km S of Arezzo (99543 inhabitants)
85 Km SE of Siena (53903 inhabitants)
100 Km NW of Roma (2864731 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
ML-VAX 1.7
1992-02-08
17:47:02
42.71 11.962 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 158389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-02-08 17:47:02 ± 0.507
Latitude 42.7100 ± 0.0237
Longitude 11.9620 ± 0.0388
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 158389

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) 4117.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 234
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00550
Epicentral distance of station farthest from the epicenter (degree) 0.01069
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 158389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:28:01

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 158389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SFI.Z. 1992-02-08T17:47:42.86 10.0 undecidable manual SN 356 1.1877 -0.09 0.7
--.ARV.Z. 1992-02-08T17:47:39.00 10.0 undecidable manual SG 42 1.0656 -0.72 0.4
--.CRE.Z. 1992-02-08T17:47:33.24 10.0 undecidable manual SG 359 0.9102 -1.47 0.1
--.ARV.Z. 1992-02-08T17:47:25.00 10.0 undecidable manual PG 42 1.0656 0.94 0.7
--.ASS.Z. 1992-02-08T17:47:25.43 10.0 undecidable manual SG 55 0.6105 0.13 0.8
--.SFI.Z. 1992-02-08T17:47:25.66 10.0 undecidable manual PN 356 1.1877 -0.26 1.6
--.MNS.Z. 1992-02-08T17:47:23.98 10.0 undecidable manual SG 121 0.6216 -1.49 0.1
--.CRE.Z. 1992-02-08T17:47:21.36 10.0 undecidable manual PG 359 0.9102 0.2 1.9
--.MNS.Z. 1992-02-08T17:47:16.10 10.0 undecidable manual PG 121 0.6216 0.18 2
--.ASS.Z. 1992-02-08T17:47:16.14 10.0 undecidable manual PG 55 0.6105 0.41 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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