Earthquake with magnitude of Md 2.0 on date 13-07-1991 and time 14:10:08 (UTC) in region 5 km NW Pistoia (PT)

A magnitude Md 2.0 earthquake occured in region: 5 km NW Pistoia (PT), on

  • 13-07-1991 14:10:08 (UTC)
  • 13-07-1991 16:10:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9730, 10.8760 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
Pistoia PT 6 90315 90315
Serravalle Pistoiese PT 8 11659 101974
Marliana PT 9 3210 105184
Piteglio PT 11 1683 106867
San Marcello Pistoiese PT 11 6416 113283
Pieve a Nievole PT 12 9266 122549
Monsummano Terme PT 12 21338 143887
Montale PT 13 10737 154624
Massa e Cozzile PT 13 7983 162607
Montecatini-Terme PT 13 20409 183016
Agliana PT 13 17525 200541
Montemurlo PO 14 18456 218997
Buggiano PT 16 8825 227822
Quarrata PT 16 26190 254012
Larciano PT 16 6394 260406
Uzzano PT 17 5770 266176
Pescia PT 17 19644 285820
Cutigliano PT 17 1488 287308
Lamporecchio PT 17 7508 294816
Ponte Buggianese PT 18 8804 303620
Sambuca Pistoiese PT 18 1626 305246
Villa Basilica LU 19 1633 306879
Chiesina Uzzanese PT 19 4552 311431
Cantagallo PO 20 3105 314536
Vaiano PO 20 9895 324431

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km NW of Pistoia (90315 inhabitants)
21 Km W of Prato (191150 inhabitants)
33 Km E of Lucca (89046 inhabitants)
34 Km NW of Scandicci (50609 inhabitants)
38 Km NW of Firenze (382808 inhabitants)
48 Km NE of Pisa (89158 inhabitants)
51 Km E of Viareggio (62467 inhabitants)
59 Km E of Massa (69479 inhabitants)
63 Km E of Carrara (63133 inhabitants)
65 Km NE of Livorno (159219 inhabitants)
69 Km SW of Bologna (386663 inhabitants)
75 Km S of Modena (184973 inhabitants)
79 Km SW of Imola (69797 inhabitants)
82 Km NW of Siena (53903 inhabitants)
83 Km S of Reggio nell'Emilia (171345 inhabitants)
85 Km E of La Spezia (93959 inhabitants)
88 Km W of Faenza (58541 inhabitants)
90 Km S of Carpi (70699 inhabitants)
97 Km W of Forlì (117913 inhabitants)
99 Km NW of Arezzo (99543 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 2.0
ML-VAX 1.7
1991-07-13
14:10:08
43.973 10.876 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 145329
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-07-13 14:10:08 ± 0.103
Latitude 43.9730 ± 0.0079
Longitude 10.8760 ± 0.0083
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 145329

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) 1096.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.00631
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 145329
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:15:41

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 145329
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
--.SFI.Z. 1991-07-13T14:10:32.50 10.0 undecidable manual SG 95 0.6993 -0.56 0
--.PGD.Z. 1991-07-13T14:10:30.37 10.0 undecidable manual SG 98 0.6105 0.08 0.6
--.SFI.Z. 1991-07-13T14:10:22.50 10.0 undecidable manual PG 95 0.6993 -0.21 1
--.PGD.Z. 1991-07-13T14:10:21.48 10.0 undecidable manual PG 98 0.6105 0.36 0.6
--.PII.Z. 1991-07-13T14:10:21.54 10.0 undecidable manual SG 225 0.3552 -0.43 0.2
--.MME.Z. 1991-07-13T14:10:18.30 10.0 undecidable manual SG 330 0.2553 -0.36 0.3
--.BDI.Z. 1991-07-13T14:10:17.32 10.0 undecidable manual SG 293 0.2109 -0.23 0.5
--.PII.Z. 1991-07-13T14:10:16.40 10.0 positive manual PG 225 0.3552 0.08 3.6
--.MME.Z. 1991-07-13T14:10:14.58 10.0 undecidable manual PG 330 0.2553 0.18 1.5
--.BDI.Z. 1991-07-13T14:10:13.86 10.0 undecidable manual PG 293 0.2109 0.1 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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