Earthquake with magnitude of M 2.5 on date 06-12-1990 and time 23:57:14 (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

  • 06-12-1990 22:57:14 (UTC)
  • 06-12-1990 23:57:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.8790, 6.9550 at 18 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
Courmayeur AO 10 2807 2807
Pré-Saint-Didier AO 13 1050 3857
Morgex AO 15 2104 5961
La Salle AO 17 2087 8048
La Thuile AO 18 761 8809
Saint-Rhémy-en-Bosses AO 19 338 9147

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 1990-12-06
22:57:14
45.879 6.955 18 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 132069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-06 22:57:14 ± 0.166
Latitude 45.8790 ± 0.0105
Longitude 6.9550 ± 0.0226
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 132069

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) 2103.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.02380
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 132069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:42:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AVF.Z. 1990-12-06T22:58:26.60 10.0 undecidable manual SN 291 2.6418 0.56 0.4
--.LOR.Z. 1990-12-06T22:58:23.00 10.0 undecidable manual SN 304 2.5308 -0.48 0.4
--.LBF.Z. 1990-12-06T22:58:18.30 10.0 undecidable manual SN 299 2.331 -0.19 0.7
--.SMF.Z. 1990-12-06T22:58:15.80 10.0 undecidable manual SN 290 2.2755 -1.59 0
--.HAU.Z. 1990-12-06T22:58:14.30 10.0 undecidable manual SN 349 2.1534 -0.28 0.7
--.BSF.Z. 1990-12-06T22:58:08.70 10.0 undecidable manual SN 356 1.9536 -0.88 0.2
--.AVF.Z. 1990-12-06T22:57:56.20 10.0 undecidable manual PN 291 2.6418 0.57 0.9
--.LOR.Z. 1990-12-06T22:57:54.80 10.0 undecidable manual PN 304 2.5308 0.63 0.8
--.SLE.Z. 1990-12-06T22:57:52.20 10.0 undecidable manual PN! 28 2.1534 3.27 0
--.LBF.Z. 1990-12-06T22:57:51.70 10.0 undecidable manual PN 299 2.331 0.43 1.3
--.SMF.Z. 1990-12-06T22:57:50.60 10.0 undecidable manual PN 290 2.2755 -0.04 2
--.HAU.Z. 1990-12-06T22:57:49.30 10.0 undecidable manual PN 349 2.1534 0.28 1.7
--.LLS.Z. 1990-12-06T22:57:46.70 10.0 undecidable manual PN! 54 1.7094 3.85 0
--.BSF.Z. 1990-12-06T22:57:45.90 10.0 undecidable manual PN 356 1.9536 -0.23 1.9
--.BNI.Z. 1990-12-06T22:57:43.50 10.0 undecidable manual SN 193 0.8436 0.24 0.8
--.TMA.Z. 1990-12-06T22:57:42.00 10.0 undecidable manual PN! 79 1.3431 4.17 0
--.BNI.Z. 1990-12-06T22:57:31.00 10.0 undecidable manual PN 193 0.8436 0.06 2.3
--.LPG.Z. 1990-12-06T22:57:29.10 10.0 undecidable manual SG 200 0.3996 -0.23 0.8
--.MMK.Z. 1990-12-06T22:57:29.10 10.0 undecidable manual PG 75 0.7215 0.43 1.6
--.LPG.Z. 1990-12-06T22:57:22.40 10.0 undecidable manual PG 200 0.3996 -0.49 1.4
--.DIX.Z. 1990-12-06T22:57:22.10 10.0 negative manual PG 57 0.3663 -0.24 4.1
--.EMS.Z. 1990-12-06T22:57:15.60 10.0 positive manual PG! 354 0.1887 -3.62 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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