Earthquake with magnitude of Md 2.5 on date 29-11-1990 and time 18:46:00 (Italy) in region Svizzera (SVIZZERA)

A magnitude Md 2.5 earthquake occured in region: Svizzera (SVIZZERA), on

  • 29-11-1990 17:46:00 (UTC)
  • 29-11-1990 18:46:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.9000, 9.0340 at 7 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
Md 2.5
M 2.5
1990-11-29
17:46:00
46.9 9.034 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 131759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-11-29 17:46:00 ± 0.237
Latitude 46.9000 ± 0.0151
Longitude 9.0340 ± 0.0281
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 131759

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) 2716.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
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) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.01093
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 131759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:02:41

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 131759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:19:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.VAI.Z. 1990-11-29T17:46:35.50 10.0 undecidable manual SG 190 1.0434 -1.43 0
--.MDI.Z. 1990-11-29T17:46:25.00 10.0 undecidable manual PN 157 1.2099 1.02 0.1
--.VAI.Z. 1990-11-29T17:46:22.30 10.0 undecidable manual PG 190 1.0434 0.66 0.3
--.MMK.Z. 1990-11-29T17:46:22.50 10.0 undecidable manual PN 221 1.11 -0.21 0.8
--.SLE.Z. 1990-11-29T17:46:19.50 10.0 undecidable manual PG 337 0.9324 -0.11 1
--.TMA.Z. 1990-11-29T17:46:17.30 10.0 undecidable manual PG 187 0.7992 0.25 0.9
--.OSS.Z. 1990-11-29T17:46:16.50 10.0 positive manual PG 105 0.777 -0.31 1.8
--.ZLA.Z. 1990-11-29T17:46:15.60 10.0 undecidable manual PG 322 0.7326 -0.21 1
--.VDL.Z. 1990-11-29T17:46:11.50 10.0 positive manual PG 144 0.4995 -0.16 2.1
--.SAX.Z. 1990-11-29T17:46:10.10 10.0 undecidable manual PG 30 0.3996 0.32 0.9
--.LLS.Z. 1990-11-29T17:46:02.50 10.0 negative manual PG 198 0.0555 -0.07 2.2
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