Earthquake with magnitude of Md 1.8 on date 09-04-1990 and time 16:47:46 (Italy) in region 3 km N Cesana Torinese (TO)

A magnitude Md 1.8 earthquake occured in region: 3 km N Cesana Torinese (TO), on

  • 09-04-1990 14:47:46 (UTC)
  • 09-04-1990 16:47:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.9830, 6.7940 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
Cesana Torinese TO 3 967 967
Claviere TO 6 214 1181
Oulx TO 6 3307 4488
Sauze di Cesana TO 7 244 4732
Sestriere TO 7 929 5661
Sauze d'Oulx TO 7 1109 6770
Salbertrand TO 12 596 7366
Pragelato TO 12 776 8142
Bardonecchia TO 13 3215 11357
Exilles TO 17 273 11630
Usseaux TO 20 186 11816

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km W of Moncalieri (57294 inhabitants)
71 Km W of Torino (890529 inhabitants)
89 Km NW of Cuneo (56081 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 1.8
M 2.3
1990-04-09
14:47:46
44.983 6.794 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 113769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-04-09 14:47:46 ± 0.167
Latitude 44.9830 ± 0.0112
Longitude 6.7940 ± 0.0194
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 113769

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) 1966.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00947
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 113769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:45:46

M:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 113769
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
--.STV.Z. 1990-04-09T14:48:15.60 10.0 undecidable manual SG 152 0.8214 -0.17 0.5
--.ENR.Z. 1990-04-09T14:48:15.16 10.0 undecidable manual SG 149 0.8769 -1.77 0
--.ORX.Z. 1990-04-09T14:48:07.44 10.0 undecidable manual PN 51 1.0545 0.02 1.2
--.LSD.Z. 1990-04-09T14:48:05.70 10.0 undecidable manual SG 28 0.5328 -0.98 0.1
--.PZZ.Z. 1990-04-09T14:48:04.91 10.0 undecidable manual SG 155 0.5217 -0.71 0.3
--.ENR.Z. 1990-04-09T14:48:04.90 10.0 undecidable manual PG 149 0.8769 -0.13 1.3
--.STV.Z. 1990-04-09T14:48:03.88 10.0 undecidable manual PG 152 0.8214 0.64 0.6
--.RSP.Z. 1990-04-09T14:48:01.80 10.0 undecidable manual SG 62 0.3552 0.51 0.4
--.PZZ.Z. 1990-04-09T14:47:57.73 10.0 undecidable manual PG 155 0.5217 0.04 1.8
--.LSD.Z. 1990-04-09T14:47:57.83 10.0 undecidable manual PG 28 0.5328 -0.11 1.7
--.RSP.Z. 1990-04-09T14:47:55.27 10.0 undecidable manual PG 62 0.3552 0.5 1.1
--.BNI.Z. 1990-04-09T14:47:52.10 10.0 undecidable manual SG 310 0.0999 -0.13 1
--.RRL.Z. 1990-04-09T14:47:51.47 10.0 undecidable manual SG 186 0.0666 0.38 0.5
--.BNI.Z. 1990-04-09T14:47:49.80 10.0 negative manual PG 310 0.0999 -0.16 3.4
--.RRL.Z. 1990-04-09T14:47:49.83 10.0 undecidable manual PG 186 0.0666 0.54 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download