Earthquake with magnitude of Md 2.5 on date 25-09-1988 and time 15:50:03 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude Md 2.5 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 25-09-1988 14:50:03 (UTC)
  • 25-09-1988 15:50:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.7180, 6.8420 at 12 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
Pontechianale CN 18 179 179

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km NW of Cuneo (56081 inhabitants)
74 Km W of Moncalieri (57294 inhabitants)
77 Km SW of Torino (890529 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
ML-VAX 1.6
1988-09-25
14:50:03
44.718 6.842 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 77789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-09-25 14:50:03 ± 0.135
Latitude 44.7180 ± 0.0067
Longitude 6.8420 ± 0.0176
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 77789

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) 1580.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 197
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00988
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 77789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:13:12

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 77789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FIN.Z. 1988-09-25T14:50:39.00 10.0 undecidable manual SN 117 1.0989 -0.67 0.1
--.ROB.Z. 1988-09-25T14:50:32.00 10.0 undecidable manual SG 119 0.8325 -0.48 0.2
--.LPG.Z. 1988-09-25T14:50:30.00 10.0 undecidable manual SG 355 0.777 -0.46 0.2
--.LSD.Z. 1988-09-25T14:50:30.00 10.0 undecidable manual SG 16 0.7659 -0.14 0.7
--.FIN.Z. 1988-09-25T14:50:24.60 10.0 undecidable manual PN 117 1.0989 0.23 1
--.STV.Z. 1988-09-25T14:50:23.60 10.0 undecidable manual SG 143 0.5772 -0.47 0.2
--.RSP.Z. 1988-09-25T14:50:22.00 10.0 undecidable manual SG 33 0.5217 -0.2 0.7
--.ROB.Z. 1988-09-25T14:50:20.40 10.0 undecidable manual PG 119 0.8325 0.18 1.5
--.LPG.Z. 1988-09-25T14:50:19.10 10.0 undecidable manual PG 355 0.777 0.05 1.8
--.LSD.Z. 1988-09-25T14:50:19.20 10.0 undecidable manual PG 16 0.7659 0.33 1
--.LPL.Z. 1988-09-25T14:50:19.40 10.0 undecidable manual PG 354 0.7992 -0.04 1.8
--.BNI.Z. 1988-09-25T14:50:16.22 10.0 undecidable manual SG 340 0.3552 -0.52 0.2
--.DOI.Z. 1988-09-25T14:50:16.48 10.0 undecidable manual SG 126 0.3552 -0.45 0.3
--.STV.Z. 1988-09-25T14:50:15.40 10.0 undecidable manual PG 143 0.5772 0.03 2.1
--.SOO.Z. 1988-09-25T14:50:14.40 10.0 undecidable manual SG 138 0.2775 -0.09 0.8
--.RSP.Z. 1988-09-25T14:50:14.90 10.0 undecidable manual PG 33 0.5217 0.62 0.3
--.BNI.Z. 1988-09-25T14:50:11.12 10.0 undecidable manual PG 340 0.3552 -0.01 2.1
--.RRL.Z. 1988-09-25T14:50:11.70 10.0 undecidable manual SG 348 0.1998 -0.38 0.4
--.DOI.Z. 1988-09-25T14:50:11.35 10.0 undecidable manual PG 126 0.3552 0.11 2
--.SOO.Z. 1988-09-25T14:50:10.00 10.0 undecidable manual PG 138 0.2775 0.17 1.8
--.RRL.Z. 1988-09-25T14:50:08.40 10.0 undecidable manual PG 348 0.1998 -0.04 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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