Earthquake with magnitude of Md 2.1 on date 20-02-1992 and time 10:31:41 (UTC) in region 3 km N Saint Oyen (AO)

A magnitude Md 2.1 earthquake occured in region: 3 km N Saint Oyen (AO), on

  • 20-02-1992 10:31:41 (UTC)
  • 20-02-1992 11:31:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.8480, 7.2080 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
Saint-Oyen AO 3 203 203
Saint-Rhémy-en-Bosses AO 3 338 541
Etroubles AO 4 501 1042
Allein AO 6 229 1271
Ollomont AO 8 157 1428
Doues AO 8 510 1938
Valpelline AO 10 657 2595
Gignod AO 10 1710 4305
Roisan AO 11 1036 5341
Oyace AO 14 219 5560
Saint-Nicolas AO 15 311 5871
Sarre AO 15 4927 10798
Aosta AO 15 34390 45188
La Salle AO 15 2087 47275
Saint-Pierre AO 15 3165 50440
Gressan AO 15 3387 53827
Jovençan AO 16 736 54563
Villeneuve AO 16 1289 55852
Saint-Christophe AO 16 3432 59284
Arvier AO 16 873 60157
Avise AO 16 305 60462
Aymavilles AO 16 2086 62548
Morgex AO 17 2104 64652
Charvensod AO 17 2468 67120
Bionaz AO 17 236 67356
Introd AO 17 658 68014
Pollein AO 18 1569 69583
Courmayeur AO 19 2807 72390
Pré-Saint-Didier AO 19 1050 73440

Municipalities with at least 50000 inhabitants

An earthquake occurred to
94 Km NW of Torino (890529 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 2.1
M 2.2
1992-02-20
10:31:41
45.848 7.208 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 159289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-02-20 10:31:41 ± 0.188
Latitude 45.8480 ± 0.0111
Longitude 7.2080 ± 0.0240
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 159289

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) 2227.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.01206
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 159289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:28:50

M:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 159289
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
--.BNI.Z. 1992-02-20T10:32:10.50 10.0 undecidable manual SG 205 0.8769 -1.63 0
--.PZZ.Z. 1992-02-20T10:32:07.24 10.0 undecidable manual PN 183 1.3431 0.86 0.1
--.BHB.Z. 1992-02-20T10:32:01.60 10.0 undecidable manual PG 177 1.0101 0.06 1
--.RRL.Z. 1992-02-20T10:32:00.99 10.0 undecidable manual PG 198 0.9657 0.19 0.9
--.BNI.Z. 1992-02-20T10:31:58.50 10.0 undecidable manual PG 205 0.8769 -0.51 0.6
--.RSP.Z. 1992-02-20T10:31:55.86 10.0 undecidable manual PG 177 0.6882 0.2 1.1
--.ORX.Z. 1992-02-20T10:31:53.19 10.0 undecidable manual PG 111 0.5772 -0.32 0.9
--.MMK.Z. 1992-02-20T10:31:52.80 10.0 undecidable manual PG 68 0.555 -0.41 0.8
--.LSD.Z. 1992-02-20T10:31:50.30 10.0 undecidable manual PG 185 0.3885 0.44 0.8
--.DIX.Z. 1992-02-20T10:31:47.30 10.0 positive manual PG 31 0.2664 0.08 2.4
--.EMS.Z. 1992-02-20T10:31:47.70 10.0 positive manual PG 319 0.2886 -0.01 2.4
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