Earthquake with magnitude of Md 2.3 on date 11-07-1989 and time 05:27:13 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude Md 2.3 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 11-07-1989 03:27:13 (UTC)
  • 11-07-1989 05:27:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3540, 6.8100 at 20 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
Argentera CN 13 83 83
Pietraporzio CN 18 77 160
Acceglio CN 20 162 322

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km W of Cuneo (56081 inhabitants)
98 Km NW of Sanremo (54807 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 2.3
M 2.4
1989-07-11
03:27:13
44.354 6.81 20 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 95099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-07-11 03:27:13 ± 0.606
Latitude 44.3540 ± 0.0326
Longitude 6.8100 ± 0.0468
Depth (km) 20 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 95099

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) 5199.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 238
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01125
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 95099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:29:03

M:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 95099
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
--.FIN.Z. 1989-07-11T03:27:44.80 10.0 undecidable manual SN 97 1.0101 -1.5 0.1
--.IMI.Z. 1989-07-11T03:27:42.28 10.0 undecidable manual SN 119 0.888 -1.23 0.2
--.ROB.Z. 1989-07-11T03:27:40.23 10.0 undecidable manual SN 93 0.7548 -0.13 0.8
--.PCP.Z. 1989-07-11T03:27:37.20 10.0 undecidable manual PN 80 1.2543 1.34 0.2
--.RRL.Z. 1989-07-11T03:27:33.50 10.0 undecidable manual SG 358 0.555 -1.14 0.2
--.FIN.Z. 1989-07-11T03:27:33.00 10.0 undecidable manual PN 97 1.0101 0.44 1.4
--.IMI.Z. 1989-07-11T03:27:30.90 10.0 undecidable manual PN 119 0.888 -0.05 1.8
--.ROB.Z. 1989-07-11T03:27:29.26 10.0 undecidable manual PN 93 0.7548 0.13 1.9
--.ENR.Z. 1989-07-11T03:27:29.67 10.0 undecidable manual SG 106 0.444 -1.03 0.3
--.DOI.Z. 1989-07-11T03:27:27.50 10.0 undecidable manual SG 64 0.3441 0.14 0.8
--.PZZ.Z. 1989-07-11T03:27:25.50 10.0 undecidable manual SG 54 0.2553 0.23 0.8
--.RRL.Z. 1989-07-11T03:27:24.95 10.0 undecidable manual PG 358 0.555 -0.61 1.4
--.ENR.Z. 1989-07-11T03:27:23.21 10.0 undecidable manual PG 106 0.444 -0.34 1.9
--.DOI.Z. 1989-07-11T03:27:22.30 10.0 undecidable manual PG 64 0.3441 0.68 1.3
--.PZZ.Z. 1989-07-11T03:27:20.44 10.0 undecidable manual PG 54 0.2553 0.29 1.9
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