Earthquake with magnitude of Md 2.3 on date 23-09-1988 and time 00:12:02 (Italy) in region 3 km W Piteglio (PT)

A magnitude Md 2.3 earthquake occured in region: 3 km W Piteglio (PT), on

  • 22-09-1988 22:12:02 (UTC)
  • 23-09-1988 00:12:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0420, 10.7290 at 3 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
Piteglio PT 3 1683 1683
San Marcello Pistoiese PT 5 6416 8099
Cutigliano PT 7 1488 9587
Bagni di Lucca LU 12 6161 15748
Marliana PT 12 3210 18958
Abetone PT 13 621 19579
Villa Basilica LU 14 1633 21212
Massa e Cozzile PT 15 7983 29195
Pescia PT 16 19644 48839
Borgo a Mozzano LU 16 6994 55833
Coreglia Antelminelli LU 16 5215 61048
Fiumalbo MO 17 1280 62328
Serravalle Pistoiese PT 17 11659 73987
Uzzano PT 18 5770 79757
Montecatini-Terme PT 18 20409 100166
Buggiano PT 18 8825 108991
Pieve a Nievole PT 19 9266 118257
Lizzano in Belvedere BO 19 2212 120469
Fanano MO 19 2989 123458
Pistoia PT 19 90315 213773
Barga LU 20 10034 223807

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Pistoia (90315 inhabitants)
28 Km NE of Lucca (89046 inhabitants)
35 Km NW of Prato (191150 inhabitants)
43 Km E of Viareggio (62467 inhabitants)
45 Km NE of Pisa (89158 inhabitants)
47 Km E of Massa (69479 inhabitants)
48 Km NW of Scandicci (50609 inhabitants)
51 Km E of Carrara (63133 inhabitants)
52 Km NW of Firenze (382808 inhabitants)
64 Km NE of Livorno (159219 inhabitants)
69 Km S of Modena (184973 inhabitants)
70 Km SW of Bologna (386663 inhabitants)
72 Km E of La Spezia (93959 inhabitants)
73 Km S of Reggio nell'Emilia (171345 inhabitants)
83 Km S of Carpi (70699 inhabitants)
86 Km W of Imola (69797 inhabitants)
90 Km SE of Parma (192836 inhabitants)
94 Km NW of Siena (53903 inhabitants)
96 Km W of Faenza (58541 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 2.3
ML-VAX 2.0
1988-09-22
22:12:02
44.042 10.729 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 77629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-09-22 22:12:02 ± 0.256
Latitude 44.0420 ± 0.0082
Longitude 10.7290 ± 0.0274
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 77629

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) 2375.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.01044
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 77629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:13:03

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 77629
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. 1988-09-22T22:12:25.87 10.0 undecidable manual PN 308 1.1544 -0.02 0.7
--.PII.Z. 1988-09-22T22:12:15.85 10.0 undecidable manual SG 204 0.3552 -0.52 0.1
--.PII.Z. 1988-09-22T22:12:10.71 10.0 undecidable manual PG 204 0.3552 0.09 1.4
--.MME.Z. 1988-09-22T22:12:08.52 10.0 undecidable manual SG 352 0.1554 -0.21 0.4
--.MME.Z. 1988-09-22T22:12:06.14 10.0 negative manual PG 352 0.1554 -0.06 2.9
--.BDI.Z. 1988-09-22T22:12:06.20 10.0 undecidable manual SG 282 0.0888 -0.6 0
--.BDI.Z. 1988-09-22T22:12:05.27 10.0 negative manual PG 282 0.0888 0.29 1.6
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