Earthquake with magnitude of Md 2.2 on date 09-02-1992 and time 07:08:59 (UTC) in region 5 km N Orvieto (TR)

A magnitude Md 2.2 earthquake occured in region: 5 km N Orvieto (TR), on

  • 09-02-1992 07:08:59 (UTC)
  • 09-02-1992 08:08:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7640, 12.1220 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
Orvieto TR 5 20630 20630
Porano TR 9 1966 22596
Ficulle TR 9 1669 24265
Castel Viscardo TR 10 2938 27203
Parrano TR 11 534 27737
Baschi TR 13 2722 30459
Castel Giorgio TR 13 2131 32590
Allerona TR 13 1794 34384
Lubriano VT 14 909 35293
Fabro TR 14 2876 38169
Castiglione in Teverina VT 15 2329 40498
Bagnoregio VT 15 3650 44148
San Venanzo TR 17 2218 46366
Bolsena VT 17 3991 50357
Montecchio TR 18 1676 52033
Montegabbione TR 18 1216 53249
Monteleone d'Orvieto TR 18 1467 54716
Civitella d'Agliano VT 18 1640 56356
San Lorenzo Nuovo VT 20 2091 58447

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Viterbo (67173 inhabitants)
44 Km SW of Perugia (166134 inhabitants)
49 Km W of Terni (111501 inhabitants)
52 Km W of Foligno (57155 inhabitants)
79 Km NE of Civitavecchia (52991 inhabitants)
81 Km S of Arezzo (99543 inhabitants)
82 Km E of Grosseto (82087 inhabitants)
89 Km SE of Siena (53903 inhabitants)
98 Km NW of Guidonia Montecelio (88673 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 2.2 1992-02-09
07:08:59
42.764 12.122 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 158519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-02-09 07:08:59 ± 0.388
Latitude 42.7640 ± 0.0156
Longitude 12.1220 ± 0.0352
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 158519

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) 3355.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 219
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00437
Epicentral distance of station farthest from the epicenter (degree) 0.00850
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 158519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:28:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1992-02-09T07:09:31.00 10.0 undecidable manual SG 39 0.9435 -0.73 0.3
--.MNS.Z. 1992-02-09T07:09:18.57 10.0 undecidable manual SG 132 0.555 -0.7 0.4
--.ASS.Z. 1992-02-09T07:09:17.58 10.0 undecidable manual SG 52 0.4884 0.56 0.5
--.ARV.Z. 1992-02-09T07:09:17.50 10.0 undecidable manual PG 39 0.9435 -0.57 1
--.CRE.Z. 1992-02-09T07:09:16.50 10.0 undecidable manual PG 352 0.8658 -0.02 2
--.MNS.Z. 1992-02-09T07:09:11.90 10.0 undecidable manual PG 132 0.555 0.22 2
--.ASS.Z. 1992-02-09T07:09:10.28 10.0 undecidable manual PG 52 0.4884 0.71 0.9
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