Earthquake with magnitude of Md 2.5 on date 01-10-1986 and time 22:24:48 (Italy) in region 8 km W Pievepelago (MO)

A magnitude Md 2.5 earthquake occured in region: 8 km W Pievepelago (MO), on

  • 01-10-1986 21:24:48 (UTC)
  • 01-10-1986 22:24:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1970, 10.5200 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
Pievepelago MO 8 2222 2222
Castiglione di Garfagnana LU 10 1818 4040
Fosciandora LU 10 602 4642
Fiumalbo MO 10 1280 5922
Villa Collemandina LU 11 1334 7256
Pieve Fosciana LU 11 2414 9670
Riolunato MO 11 712 10382
Frassinoro MO 12 1926 12308
Castelnuovo di Garfagnana LU 13 5950 18258
Abetone PT 13 621 18879
Barga LU 14 10034 28913
San Romano in Garfagnana LU 14 1410 30323
Coreglia Antelminelli LU 15 5215 35538
Camporgiano LU 15 2176 37714
Molazzana LU 16 1043 38757
Gallicano LU 17 3807 42564
Montecreto MO 17 940 43504
Palagano MO 17 2194 45698
Piazza al Serchio LU 18 2367 48065
Careggine LU 18 564 48629
Sillano Giuncugnano LU 18 1085 49714
Fabbriche di Vergemoli LU 19 768 50482
Villa Minozzo RE 19 3750 54232
Montefiorino MO 20 2203 56435

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Massa (69479 inhabitants)
36 Km E of Carrara (63133 inhabitants)
39 Km N of Lucca (89046 inhabitants)
43 Km NE of Viareggio (62467 inhabitants)
43 Km NW of Pistoia (90315 inhabitants)
54 Km N of Pisa (89158 inhabitants)
56 Km E of La Spezia (93959 inhabitants)
56 Km S of Reggio nell'Emilia (171345 inhabitants)
58 Km NW of Prato (191150 inhabitants)
60 Km SW of Modena (184973 inhabitants)
69 Km S of Parma (192836 inhabitants)
71 Km SW of Carpi (70699 inhabitants)
72 Km NW of Scandicci (50609 inhabitants)
73 Km W of Bologna (386663 inhabitants)
74 Km N of Livorno (159219 inhabitants)
76 Km NW of Firenze (382808 inhabitants)
97 Km W of Imola (69797 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 1986-10-01
21:24:48
44.197 10.52 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 34989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-01 21:24:48 ± 0.815
Latitude 44.1970 ± 0.0617
Longitude 10.5200 ± 0.1086
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34989

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) 11043.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.02056
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 34989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:35:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.STV.Z. 1986-10-01T21:25:26.00 10.0 undecidable manual PN 272 2.2866 0.3 0.9
--.IMP.Z. 1986-10-01T21:25:21.00 10.0 undecidable manual PN 262 1.9092 0.49 0.9
--.ROB.Z. 1986-10-01T21:25:21.50 10.0 undecidable manual PN 274 1.8981 1.13 0.4
--.FIN.Z. 1986-10-01T21:25:16.70 10.0 undecidable manual PN 271 1.6539 -0.35 1.1
--.PS9.Z. 1986-10-01T21:25:07.00 10.0 undecidable manual SG? 179 0.4662 1.54 0
--.VEA.Z. 1986-10-01T21:25:07.00 10.0 undecidable manual PG 317 0.9324 0.13 1.4
--.BVT.Z. 1986-10-01T21:24:59.40 10.0 undecidable manual PG 299 0.5661 -0.63 2.1
--.PS9.Z. 1986-10-01T21:24:56.00 10.0 undecidable manual PG? 179 0.4662 -2.2 0
--.BDI.Z. 1986-10-01T21:24:52.50 10.0 undecidable manual PG 157 0.1443 0.42 1.3
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