Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.1 on date 14-04-1990 and time 00:39:57 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude Md 2.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 13-04-1990 22:39:57 (UTC)
  • 14-04-1990 00:39:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.1620, 6.7200 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bardonecchia TO 9 3215 3215
Salbertrand TO 16 596 3811
Oulx TO 17 3307 7118
Exilles TO 18 273 7391
Sauze d'Oulx TO 18 1109 8500

Municipalities with at least 50000 inhabitants

An earthquake occurred to
76 Km W of Torino (890529 inhabitants)
78 Km W of Moncalieri (57294 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 2.4 		1990-04-13
22:39:57		 45.162 6.72 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 114139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-04-13 22:39:57 ± 0.241
Latitude 45.1620 ± 0.0097
Longitude 6.7200 ± 0.0305
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 114139

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) 2627.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.02234
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 114139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:46:08

M:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 114139
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
--.LMR.Z. 1990-04-13T22:40:55.30 10.0 undecidable manual SN! 184 1.8204 2.57 0
--.FRF.Z. 1990-04-13T22:40:49.00 10.0 undecidable manual SN 181 1.5984 1.79 0.1
--.SMF.Z. 1990-04-13T22:40:41.90 10.0 undecidable manual PN! 307 2.4753 3.57 0
--.ORX.Z. 1990-04-13T22:40:31.28 10.0 undecidable manual SG 61 0.999 -1.07 0.4
--.LMR.Z. 1990-04-13T22:40:30.70 10.0 undecidable manual PN 184 1.8204 1.41 0.4
--.STV.Z. 1990-04-13T22:40:30.89 10.0 undecidable manual SG 154 1.0101 -1.63 0.2
--.LRG.Z. 1990-04-13T22:40:28.70 10.0 undecidable manual PN 188 1.7205 0.88 0.9
--.FRF.Z. 1990-04-13T22:40:27.10 10.0 undecidable manual PN 181 1.5984 0.98 0.8
--.PCP.Z. 1990-04-13T22:40:25.69 10.0 undecidable manual PN 114 1.4319 1.86 0.2
--.SBF.Z. 1990-04-13T22:40:24.50 10.0 undecidable manual PN 158 1.3875 1.22 0.7
--.FIN.Z. 1990-04-13T22:40:24.15 10.0 undecidable manual PN 131 1.4208 0.46 1.4
--.DOI.Z. 1990-04-13T22:40:23.50 10.0 undecidable manual SG 150 0.7548 -0.94 0.5
--.PZZ.Z. 1990-04-13T22:40:21.17 10.0 undecidable manual SG! 157 0.6993 -1.79 0
--.ROB.Z. 1990-04-13T22:40:20.45 10.0 undecidable manual PN 135 1.1766 0.02 1.7
--.ENR.Z. 1990-04-13T22:40:17.37 10.0 undecidable manual PG 151 1.0545 -1.21 0.8
--.ORX.Z. 1990-04-13T22:40:17.69 10.0 undecidable manual PG 61 0.999 0.15 1.8
--.STV.Z. 1990-04-13T22:40:16.87 10.0 undecidable manual PG 154 1.0101 -0.77 1.3
--.LSD.Z. 1990-04-13T22:40:14.20 10.0 undecidable manual SG 45 0.4218 0.41 0.7
--.RSP.Z. 1990-04-13T22:40:13.70 10.0 undecidable manual SG! 91 0.3774 1.08 0
--.DOI.Z. 1990-04-13T22:40:12.00 10.0 undecidable manual PG 150 0.7548 -0.97 1.1
--.LPG.Z. 1990-04-13T22:40:10.10 10.0 undecidable manual SG 3 0.333 -0.27 0.7
--.LPL.Z. 1990-04-13T22:40:10.40 10.0 undecidable manual SG 1 0.3552 -0.66 0.6
--.PZZ.Z. 1990-04-13T22:40:10.82 10.0 undecidable manual PG 157 0.6993 -1.29 0.7
--.LSD.Z. 1990-04-13T22:40:07.20 10.0 undecidable manual PG 45 0.4218 0.2 1.9
--.RRL.Z. 1990-04-13T22:40:07.13 10.0 undecidable manual SG 169 0.2442 0.21 0.8
--.RSP.Z. 1990-04-13T22:40:06.82 10.0 undecidable manual PG 91 0.3774 1.04 1.1
--.LPG.Z. 1990-04-13T22:40:04.30 10.0 undecidable manual PG 3 0.333 -0.55 1.6
--.LPL.Z. 1990-04-13T22:40:04.50 10.0 undecidable manual PG 1 0.3552 -0.74 1.4
--.RRL.Z. 1990-04-13T22:40:02.41 10.0 undecidable manual PG 169 0.2442 -0.45 1.7
--.BNI.Z. 1990-04-13T22:40:01.70 10.0 undecidable manual SG 194 0.111 -0.3 1.1
--.BNI.Z. 1990-04-13T22:39:59.60 10.0 positive manual PG 194 0.111 -0.41 3.5
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