Earthquake with magnitude of Md 2.5 on date 27-03-1991 and time 18:24:50 (Italy) in region France

A magnitude Md 2.5 earthquake occured in region: France, on

  • 27-03-1991 17:24:50 (UTC)
  • 27-03-1991 18:24:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.5230, 6.0780 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.

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 2.6
1991-03-27
17:24:50
45.523 6.078 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 138359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-03-27 17:24:50 ± 0.168
Latitude 45.5230 ± 0.0149
Longitude 6.0780 ± 0.0174
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 138359

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) 2142.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.02696
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 138359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:09:06

M:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 138359
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
--.LBF.Z. 1991-03-27T17:25:55.60 10.0 undecidable manual SN! 315 2.0535 4.58 0
--.CDF.Z. 1991-03-27T17:25:37.20 10.0 undecidable manual PN 15 2.997 -1.04 0.5
--.STV.Z. 1991-03-27T17:25:36.28 10.0 undecidable manual SN! 144 1.5429 -2.59 0
--.CAF.Z. 1991-03-27T17:25:36.40 10.0 undecidable manual PN 259 2.886 -0.28 1.1
--.ORX.Z. 1991-03-27T17:25:33.20 10.0 undecidable manual SN 84 1.332 -0.61 0.5
--.DOI.Z. 1991-03-27T17:25:32.91 10.0 undecidable manual SN 140 1.2987 -0.29 0.6
--.MAF.Z. 1991-03-27T17:25:32.20 10.0 undecidable manual PN 286 2.5308 0.27 1.2
--.BGF.Z. 1991-03-27T17:25:30.70 10.0 undecidable manual PN 295 2.4642 -0.23 1.3
--.SSF.Z. 1991-03-27T17:25:29.80 10.0 undecidable manual PN 311 2.3421 0.51 1
--.PZZ.Z. 1991-03-27T17:25:28.59 10.0 undecidable manual SN! 143 1.2432 -3.12 0
--.LOR.Z. 1991-03-27T17:25:28.70 10.0 undecidable manual PN 319 2.3199 -0.19 1.3
--.BSF.Z. 1991-03-27T17:25:28.80 10.0 undecidable manual PN 11 2.3532 -0.63 1
--.AVF.Z. 1991-03-27T17:25:27.40 10.0 undecidable manual PN 304 2.2644 -0.84 0.9
--.PCP.Z. 1991-03-27T17:25:27.50 10.0 undecidable manual PN! 118 1.998 2.57 0
--.IMI.Z. 1991-03-27T17:25:27.56 10.0 undecidable manual PN 140 2.0535 2.2 0.1
--.LBF.Z. 1991-03-27T17:25:25.60 10.0 undecidable manual PN 315 2.0535 0.29 1.3
--.FRF.Z. 1991-03-27T17:25:25.40 10.0 undecidable manual PN 167 1.998 0.88 0.9
--.FIN.Z. 1991-03-27T17:25:24.49 10.0 undecidable manual PN 130 1.998 -0.01 1.4
--.ROB.Z. 1991-03-27T17:25:22.82 10.0 undecidable manual PN 132 1.7538 1.61 0.3
--.SMF.Z. 1991-03-27T17:25:21.80 10.0 undecidable manual PN! 306 1.9092 -1.52 0
--.ENR.Z. 1991-03-27T17:25:19.87 10.0 undecidable manual PN 143 1.5984 0.78 1.2
--.RSP.Z. 1991-03-27T17:25:19.10 10.0 undecidable manual SG! 113 0.8991 -3.09 0
--.STV.Z. 1991-03-27T17:25:18.96 10.0 undecidable manual PN 144 1.5429 0.66 1.3
--.MMK.Z. 1991-03-27T17:25:17.90 10.0 undecidable manual PN 67 1.4097 1.41 0.5
--.ORX.Z. 1991-03-27T17:25:17.33 10.0 undecidable manual PN 84 1.332 1.95 0.2
--.RRL.Z. 1991-03-27T17:25:15.38 10.0 undecidable manual SG! 139 0.777 -2.74 0
--.DOI.Z. 1991-03-27T17:25:15.27 10.0 undecidable manual PN 140 1.2987 0.25 1.7
--.LSD.Z. 1991-03-27T17:25:14.87 10.0 undecidable manual SG! 94 0.7548 -2.51 0
--.PZZ.Z. 1991-03-27T17:25:14.49 10.0 undecidable manual PN 143 1.2432 0.32 1.7
--.DIX.Z. 1991-03-27T17:25:12.40 10.0 undecidable manual PN 58 1.0767 0.5 1.6
--.BHB.Z. 1991-03-27T17:25:11.20 10.0 undecidable manual PN 128 1.0767 -0.87 0.9
--.BNI.Z. 1991-03-27T17:25:10.70 10.0 undecidable manual SG! 137 0.6327 -3.28 0
--.RSP.Z. 1991-03-27T17:25:08.33 10.0 undecidable manual PG 113 0.8991 -0.34 1.5
--.LPG.Z. 1991-03-27T17:25:07.20 10.0 undecidable manual SG 92 0.4662 -1.02 0.2
--.EMS.Z. 1991-03-27T17:25:06.80 10.0 undecidable manual PG 46 0.7992 -0.02 1.7
--.LPL.Z. 1991-03-27T17:25:06.89 10.0 undecidable manual SG 90 0.444 -0.88 0.3
--.RRL.Z. 1991-03-27T17:25:05.73 10.0 undecidable manual PG 139 0.777 -0.59 1.2
--.RSL.Z. 1991-03-27T17:25:05.62 10.0 undecidable manual SG 66 0.4107 -0.73 0.4
--.LSD.Z. 1991-03-27T17:25:05.57 10.0 undecidable manual PG 94 0.7548 -0.32 1.5
--.BNI.Z. 1991-03-27T17:25:02.75 10.0 negative manual PG 137 0.6327 -0.82 1.9
--.GRN.Z. 1991-03-27T17:25:01.40 10.0 undecidable manual SG! 219 0.3552 -2.96 0
--.LPL.Z. 1991-03-27T17:25:00.70 10.0 undecidable manual PG 90 0.444 0.36 1.7
--.LPG.Z. 1991-03-27T17:25:00.80 10.0 undecidable manual PG 92 0.4662 0.2 1.8
--.RSL.Z. 1991-03-27T17:24:59.72 10.0 undecidable manual PG 66 0.4107 0.2 1.8
--.GRN.Z. 1991-03-27T17:24:56.84 10.0 undecidable manual PG 219 0.3552 -1.53 0.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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