Earthquake with magnitude of Md 2.4 on date 12-06-1991 and time 19:22:53 (UTC) in region 3 km NW Pistoia (PT)

A magnitude Md 2.4 earthquake occured in region: 3 km NW Pistoia (PT), on

  • 12-06-1991 19:22:53 (UTC)
  • 12-06-1991 21:22:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9540, 10.8980 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pistoia PT 3 90315 90315
Serravalle Pistoiese PT 7 11659 101974
Montale PT 10 10737 112711
Agliana PT 10 17525 130236
Marliana PT 10 3210 133446
Monsummano Terme PT 11 21338 154784
Pieve a Nievole PT 12 9266 164050
Montemurlo PO 12 18456 182506
Montecatini-Terme PT 13 20409 202915
Massa e Cozzile PT 13 7983 210898
Piteglio PT 13 1683 212581
Quarrata PT 13 26190 238771
San Marcello Pistoiese PT 14 6416 245187
Larciano PT 14 6394 251581
Lamporecchio PT 15 7508 259089
Buggiano PT 16 8825 267914
Uzzano PT 17 5770 273684
Ponte Buggianese PT 17 8804 282488
Pescia PT 18 19644 302132
Prato PO 18 191150 493282
Vaiano PO 18 9895 503177
Carmignano PO 18 14450 517627
Vinci FI 19 14604 532231
Sambuca Pistoiese PT 19 1626 533857
Cantagallo PO 19 3105 536962
Chiesina Uzzanese PT 19 4552 541514
Poggio a Caiano PO 20 10007 551521
Cutigliano PT 20 1488 553009

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km NW of Pistoia (90315 inhabitants)
18 Km W of Prato (191150 inhabitants)
31 Km NW of Scandicci (50609 inhabitants)
34 Km E of Lucca (89046 inhabitants)
35 Km NW of Firenze (382808 inhabitants)
48 Km NE of Pisa (89158 inhabitants)
53 Km E of Viareggio (62467 inhabitants)
61 Km E of Massa (69479 inhabitants)
65 Km NE of Livorno (159219 inhabitants)
66 Km E of Carrara (63133 inhabitants)
70 Km SW of Bologna (386663 inhabitants)
77 Km S of Modena (184973 inhabitants)
79 Km NW of Siena (53903 inhabitants)
79 Km SW of Imola (69797 inhabitants)
85 Km S of Reggio nell'Emilia (171345 inhabitants)
87 Km W of Faenza (58541 inhabitants)
87 Km E of La Spezia (93959 inhabitants)
92 Km S of Carpi (70699 inhabitants)
96 Km NW of Arezzo (99543 inhabitants)
96 Km W of Forlì (117913 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 2.4
ML-VAX 2.4
1991-06-12
19:22:53
43.954 10.898 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 143359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-06-12 19:22:53 ± 0.128
Latitude 43.9540 ± 0.0111
Longitude 10.8980 ± 0.0102
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 143359

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) 1483.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.01392
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 143359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:13:48

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 143359
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
--.BOB.Z. 1991-06-12T19:23:36.50 10.0 undecidable manual SN 308 1.3098 0.19 0.4
--.CRE.Z. 1991-06-12T19:23:23.31 10.0 undecidable manual SG 113 0.8214 0.66 0.2
--.ARV.Z. 1991-06-12T19:23:22.00 10.0 undecidable manual PN 106 1.5318 0.79 0.2
--.ASS.Z. 1991-06-12T19:23:21.20 10.0 undecidable manual PN 124 1.5429 -0.1 0.9
--.BOB.Z. 1991-06-12T19:23:19.11 10.0 undecidable manual PN 308 1.3098 1.03 0.1
--.SFI.Z. 1991-06-12T19:23:17.40 10.0 undecidable manual SG 93 0.6882 -0.62 0.2
--.PGD.Z. 1991-06-12T19:23:14.94 10.0 undecidable manual SG 97 0.5883 -0.27 0.5
--.CRE.Z. 1991-06-12T19:23:10.24 10.0 undecidable manual PG 113 0.8214 0.05 1.3
--.SFI.Z. 1991-06-12T19:23:07.22 10.0 negative manual PG 93 0.6882 -0.29 2.2
--.PII.Z. 1991-06-12T19:23:06.18 10.0 undecidable manual SG 229 0.3552 -0.81 0.1
--.PGD.Z. 1991-06-12T19:23:05.63 10.0 undecidable manual PG 97 0.5883 -0.26 1.2
--.MME.Z. 1991-06-12T19:23:03.28 10.0 undecidable manual SG 329 0.2664 -0.75 0.1
--.BDI.Z. 1991-06-12T19:23:02.35 10.0 undecidable manual SG 296 0.2331 -0.3 0.4
--.PII.Z. 1991-06-12T19:23:01.14 10.0 positive manual PG 229 0.3552 0 2.8
--.MME.Z. 1991-06-12T19:22:59.36 10.0 positive manual PG 329 0.2664 -0.08 2.8
--.BDI.Z. 1991-06-12T19:22:58.62 10.0 negative manual PG 296 0.2331 -0.02 2.8
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