Earthquake with magnitude of Md 2.5 on date 20-05-1992 and time 18:38:47 (Italy) in region 4 km SW Piazza al Serchio (LU)

A magnitude Md 2.5 earthquake occured in region: 4 km SW Piazza al Serchio (LU), on

  • 20-05-1992 16:38:47 (UTC)
  • 20-05-1992 18:38:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1620, 10.2610 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
Piazza al Serchio LU 4 2367 2367
Minucciano LU 4 2102 4469
Vagli Sotto LU 5 939 5408
Camporgiano LU 6 2176 7584
Careggine LU 7 564 8148
San Romano in Garfagnana LU 7 1410 9558
Sillano Giuncugnano LU 8 1085 10643
Casola in Lunigiana MS 8 988 11631
Villa Collemandina LU 11 1334 12965
Castiglione di Garfagnana LU 12 1818 14783
Pieve Fosciana LU 13 2414 17197
Castelnuovo di Garfagnana LU 13 5950 23147
Fivizzano MS 14 7925 31072
Fabbriche di Vergemoli LU 16 768 31840
Carrara MS 16 63133 94973
Molazzana LU 16 1043 96016
Fosciandora LU 16 602 96618
Massa MS 17 69479 166097
Montignoso MS 17 10323 176420
Gallicano LU 18 3807 180227
Comano MS 18 714 180941
Stazzema LU 18 3193 184134
Seravezza LU 19 13073 197207
Ortonovo SP 19 8277 205484
Fosdinovo MS 19 4883 210367

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Carrara (63133 inhabitants)
17 Km NE of Massa (69479 inhabitants)
33 Km N of Viareggio (62467 inhabitants)
35 Km E of La Spezia (93959 inhabitants)
40 Km NW of Lucca (89046 inhabitants)
51 Km N of Pisa (89158 inhabitants)
58 Km W of Pistoia (90315 inhabitants)
67 Km SW of Reggio nell'Emilia (171345 inhabitants)
68 Km N of Livorno (159219 inhabitants)
71 Km S of Parma (192836 inhabitants)
74 Km W of Prato (191150 inhabitants)
76 Km SW of Modena (184973 inhabitants)
85 Km SW of Carpi (70699 inhabitants)
86 Km NW of Scandicci (50609 inhabitants)
91 Km W of Firenze (382808 inhabitants)
94 Km W of Bologna (386663 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
ML-VAX 1.9
1992-05-20
16:38:47
44.162 10.261 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 164939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-20 16:38:47 ± 0.248
Latitude 44.1620 ± 0.0114
Longitude 10.2610 ± 0.0180
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 164939

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) 1915.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.01044
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 164939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:34:15

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 164939
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. 1992-05-20T16:39:17.88 10.0 undecidable manual SG 316 0.8325 0.82 0.1
--.SFI.Z. 1992-05-20T16:39:10.36 10.0 undecidable manual PN 102 1.1544 0.18 1.2
--.PGD.Z. 1992-05-20T16:39:09.46 10.0 undecidable manual PN 105 1.0767 0.39 0.9
--.PII.Z. 1992-05-20T16:39:04.79 10.0 undecidable manual SG 156 0.4773 -0.77 0.1
--.BOB.Z. 1992-05-20T16:39:03.89 10.0 undecidable manual PG 316 0.8325 -0.59 0.6
--.GU9.Z. 1992-05-20T16:38:58.41 10.0 undecidable manual SG 51 0.2997 -0.57 0.3
--.MME.Z. 1992-05-20T16:38:58.95 10.0 undecidable manual SG 84 0.3108 -0.64 0.2
--.BDI.Z. 1992-05-20T16:38:57.64 10.0 undecidable manual SG 112 0.2553 0.15 0.8
--.PII.Z. 1992-05-20T16:38:57.72 10.0 undecidable manual PG 156 0.4773 -0.13 2.1
--.GU9.Z. 1992-05-20T16:38:54.40 10.0 undecidable manual PG 51 0.2997 0 2.1
--.MME.Z. 1992-05-20T16:38:54.67 10.0 undecidable manual PG 84 0.3108 0.28 1.7
--.BDI.Z. 1992-05-20T16:38:53.45 10.0 undecidable manual PG 112 0.2553 0.27 1.7
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