Earthquake with magnitude of M 2.0 on date 23-05-1991 and time 18:16:11 (UTC) in region 2 km W Bagnolo Piemonte (CN)

A magnitude M 2.0 earthquake occured in region: 2 km W Bagnolo Piemonte (CN), on

  • 23-05-1991 18:16:11 (UTC)
  • 23-05-1991 20:16:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.7690, 7.2960 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
Bagnolo Piemonte CN 2 6024 6024
Bibiana TO 3 3442 9466
Campiglione Fenile TO 5 1390 10856
Lusernetta TO 5 506 11362
Barge CN 5 7774 19136
Bricherasio TO 6 4616 23752
Luserna San Giovanni TO 6 7395 31147
Cavour TO 7 5545 36692
Torre Pellice TO 8 4551 41243
Rorà TO 8 257 41500
Paesana CN 9 2784 44284
Osasco TO 10 1141 45425
Garzigliana TO 10 572 45997
Angrogna TO 10 889 46886
San Secondo di Pinerolo TO 11 3575 50461
Prarostino TO 11 1273 51734
Envie CN 11 2074 53808
Villar Pellice TO 12 1076 54884
Ostana CN 12 83 54967
Macello TO 13 1229 56196
Oncino CN 13 76 56272
Crissolo CN 13 168 56440
Porte TO 14 1083 57523
Pinerolo TO 14 35808 93331
Sanfront CN 14 2395 95726
Rifreddo CN 14 1078 96804
Revello CN 15 4262 101066
Bobbio Pellice TO 15 563 101629
Cardè CN 15 1122 102751
Buriasco TO 15 1410 104161
San Germano Chisone TO 15 1854 106015
San Pietro Val Lemina TO 16 1448 107463
Gambasca CN 16 371 107834
Pramollo TO 17 258 108092
Villafranca Piemonte TO 17 4729 112821
Martiniana Po CN 17 734 113555
Villar Perosa TO 17 4092 117647
Roletto TO 18 2009 119656
Vigone TO 18 5182 124838
Torre San Giorgio CN 19 730 125568
Frossasco TO 19 2864 128432
Moretta CN 19 4136 132568
Cercenasco TO 19 1803 134371
Cantalupa TO 19 2553 136924
Piscina TO 20 3388 140312
Castellar CN 20 295 140607

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Moncalieri (57294 inhabitants)
46 Km SW of Torino (890529 inhabitants)
46 Km NW of Cuneo (56081 inhabitants)
73 Km W of Asti (76202 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
M 2.0 1991-05-23
18:16:11
44.769 7.296 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 141769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-05-23 18:16:11 ± 0.187
Latitude 44.7690 ± 0.0128
Longitude 7.2960 ± 0.0297
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 141769

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) 2740.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00769
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

M:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 141769
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. 1991-05-23T18:16:28.68 10.0 undecidable manual PG 130 0.8547 -0.19 1.1
--.LSD.Z. 1991-05-23T18:16:26.20 10.0 undecidable manual PG 351 0.6882 0.2 1.3
--.ROB.Z. 1991-05-23T18:16:24.98 10.0 undecidable manual PG 138 0.6216 0.51 1
--.BNI.Z. 1991-05-23T18:16:23.10 10.0 undecidable manual PG 303 0.5106 0.52 1.1
--.ENR.Z. 1991-05-23T18:16:22.24 10.0 undecidable manual PG 170 0.5439 -0.88 0.5
--.RRL.Z. 1991-05-23T18:16:19.34 10.0 undecidable manual PG 292 0.3885 -0.88 0.5
--.PZZ.Z. 1991-05-23T18:16:19.60 10.0 undecidable manual PG 207 0.2997 0.59 1
--.RSP.Z. 1991-05-23T18:16:19.46 10.0 undecidable manual PG 355 0.3774 -0.59 1
--.DOI.Z. 1991-05-23T18:16:18.00 10.0 undecidable manual PG 187 0.2553 0.09 1.7
--.BHB.Z. 1991-05-23T18:16:15.00 10.0 undecidable manual PG 340 0.0666 0.65 0.9
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