Earthquake with magnitude of M 2.5 on date 20-12-1990 and time 01:19:00 (Italy) in region V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA)

A magnitude M 2.5 earthquake occured in region: V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA), on

  • 20-12-1990 00:19:00 (UTC)
  • 20-12-1990 01:19:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.0050, 6.8700 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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
M 2.5 1990-12-20
00:19:00
46.005 6.87 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 132799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-20 00:19:00 ± 0.158
Latitude 46.0050 ± 0.0101
Longitude 6.8700 ± 0.0188
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 132799

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) 1833.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.03181
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitude information

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 132799
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
--.LOR.Z. 1990-12-20T00:20:13.80 10.0 undecidable manual SN! 302 2.4198 3.53 0
--.SMF.Z. 1990-12-20T00:20:06.60 10.0 undecidable manual SN 288 2.1867 1.92 0.1
--.HAU.Z. 1990-12-20T00:20:01.20 10.0 undecidable manual SN 350 2.0202 0.21 0.7
--.CAF.Z. 1990-12-20T00:19:56.60 10.0 undecidable manual PN 253 3.5298 0.36 1.2
--.BSF.Z. 1990-12-20T00:19:54.60 10.0 undecidable manual SN 358 1.8204 -1.53 0.2
--.PZZ.Z. 1990-12-20T00:19:50.10 10.0 undecidable manual SN 173 1.4985 1.45 0.2
--.MAF.Z. 1990-12-20T00:19:47.40 10.0 undecidable manual PN 275 2.9859 -1.33 0.5
--.BGF.Z. 1990-12-20T00:19:46.00 10.0 undecidable manual PN 282 2.8305 -0.59 1.2
--.SSF.Z. 1990-12-20T00:19:42.60 10.0 undecidable manual PN 295 2.5308 0 1.6
--.LOR.Z. 1990-12-20T00:19:41.10 10.0 undecidable manual PN 302 2.4198 0.16 1.6
--.AVF.Z. 1990-12-20T00:19:41.60 10.0 undecidable manual PN 289 2.5419 -1.08 0.8
--.SAX.Z. 1990-12-20T00:19:39.70 10.0 undecidable manual PN! 52 2.0979 3.09 0
--.SMF.Z. 1990-12-20T00:19:38.20 10.0 undecidable manual PN 288 2.1867 0.49 1.5
--.CDF.Z. 1990-12-20T00:19:38.20 10.0 undecidable manual PN! 6 2.4198 -2.74 0
--.SLE.Z. 1990-12-20T00:19:38.10 10.0 undecidable manual PN 31 2.0757 1.84 0.2
--.LBF.Z. 1990-12-20T00:19:37.80 10.0 undecidable manual PN 297 2.2089 -0.34 1.6
--.RRL.Z. 1990-12-20T00:19:37.73 10.0 undecidable manual SN 183 1.0767 -0.79 0.6
--.VDL.Z. 1990-12-20T00:19:36.80 10.0 undecidable manual PN! 74 1.8537 3.57 0
--.BNI.Z. 1990-12-20T00:19:34.70 10.0 undecidable manual SG 188 0.9546 0.1 0.8
--.BSF.Z. 1990-12-20T00:19:33.00 10.0 undecidable manual PN 358 1.8204 0.23 1.8
--.HAU.Z. 1990-12-20T00:19:33.20 10.0 undecidable manual PN! 350 2.0202 -2.38 0
--.FEL.Z. 1990-12-20T00:19:32.87 10.0 undecidable manual PN! 22 2.0202 -2.64 0
--.RSP.Z. 1990-12-20T00:19:32.00 10.0 undecidable manual SG 162 0.888 -0.46 0.7
--.LLS.Z. 1990-12-20T00:19:32.50 10.0 undecidable manual PN 59 1.6872 1.49 0.5
--.ORX.Z. 1990-12-20T00:19:31.80 10.0 undecidable manual SG 115 0.8547 -0.23 0.8
--.PZZ.Z. 1990-12-20T00:19:30.24 10.0 undecidable manual PN 173 1.4985 1.84 0.3
--.TMA.Z. 1990-12-20T00:19:28.20 10.0 undecidable manual PN 85 1.3875 1.38 0.7
--.LSD.Z. 1990-12-20T00:19:22.35 10.0 undecidable manual SG 159 0.5772 -0.07 0.8
--.RRL.Z. 1990-12-20T00:19:22.45 10.0 undecidable manual PN 183 1.0767 -0.16 2
--.BNI.Z. 1990-12-20T00:19:20.00 10.0 undecidable manual PG 188 0.9546 -0.34 1.9
--.RSP.Z. 1990-12-20T00:19:19.37 10.0 undecidable manual PG 162 0.888 0.27 2
--.LPG.Z. 1990-12-20T00:19:19.60 10.0 undecidable manual SG 189 0.5106 -0.62 0.6
--.ORX.Z. 1990-12-20T00:19:18.77 10.0 undecidable manual PG 115 0.8547 0.33 1.9
--.LPL.Z. 1990-12-20T00:19:18.70 10.0 undecidable manual SG 191 0.4995 -1.01 0.4
--.MMK.Z. 1990-12-20T00:19:15.20 10.0 undecidable manual PG 86 0.7548 -1.43 0.6
--.LSD.Z. 1990-12-20T00:19:13.32 10.0 undecidable manual PG 159 0.5772 0.01 2.1
--.LPG.Z. 1990-12-20T00:19:12.10 10.0 undecidable manual PG 189 0.5106 0.06 2
--.LPL.Z. 1990-12-20T00:19:11.70 10.0 undecidable manual PG 191 0.4995 -0.04 2
--.DIX.Z. 1990-12-20T00:19:08.50 10.0 negative manual PG 78 0.3774 -0.93 2.4
--.EMS.Z. 1990-12-20T00:19:02.10 10.0 positive manual PG 33 0.0666 -0.75 2.9
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