Earthquake with magnitude of Md 2.1 on date 30-06-1997 and time 01:25:33 (UTC) in region 5 km N Villa Collemandina (LU)

A magnitude Md 2.1 earthquake occured in region: 5 km N Villa Collemandina (LU), on

  • 30-06-1997 01:25:33 (UTC)
  • 30-06-1997 03:25:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2030, 10.3990 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
Villa Collemandina LU 5 1334 1334
San Romano in Garfagnana LU 6 1410 2744
Castiglione di Garfagnana LU 6 1818 4562
Camporgiano LU 7 2176 6738
Pieve Fosciana LU 8 2414 9152
Sillano Giuncugnano LU 8 1085 10237
Piazza al Serchio LU 8 2367 12604
Castelnuovo di Garfagnana LU 10 5950 18554
Fosciandora LU 11 602 19156
Careggine LU 11 564 19720
Vagli Sotto LU 14 939 20659
Molazzana LU 15 1043 21702
Minucciano LU 16 2102 23804
Barga LU 16 10034 33838
Gallicano LU 16 3807 37645
Fabbriche di Vergemoli LU 17 768 38413
Frassinoro MO 17 1926 40339
Pievepelago MO 18 2222 42561
Casola in Lunigiana MS 18 988 43549
Coreglia Antelminelli LU 18 5215 48764
Villa Minozzo RE 19 3750 52514
Ventasso RE 20 4295 56809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Massa (69479 inhabitants)
28 Km E of Carrara (63133 inhabitants)
39 Km NE of Viareggio (62467 inhabitants)
41 Km N of Lucca (89046 inhabitants)
47 Km E of La Spezia (93959 inhabitants)
51 Km NW of Pistoia (90315 inhabitants)
54 Km N of Pisa (89158 inhabitants)
58 Km SW of Reggio nell'Emilia (171345 inhabitants)
65 Km SW of Modena (184973 inhabitants)
66 Km NW of Prato (191150 inhabitants)
67 Km S of Parma (192836 inhabitants)
73 Km N of Livorno (159219 inhabitants)
75 Km SW of Carpi (70699 inhabitants)
80 Km NW of Scandicci (50609 inhabitants)
82 Km W of Bologna (386663 inhabitants)
84 Km NW of Firenze (382808 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 2.1
ML-VAX 1.8
1997-06-30
01:25:33
44.203 10.399 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 272439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-06-30 01:25:33 ± 0.143
Latitude 44.2030 ± 0.0047
Longitude 10.3990 ± 0.0162
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 272439

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) 1394.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
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) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00437
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 272439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:17:28

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 272439
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
--.PII.Z. 1997-06-30T01:25:43.48 10.0 undecidable manual PG 169 0.4884 -0.02 1.3
--.EB9.Z. 1997-06-30T01:25:42.43 10.0 undecidable manual SG 2 0.2109 0.27 0.4
--.GU9.Z. 1997-06-30T01:25:41.67 10.0 undecidable manual SG 42 0.1998 0.03 0.8
--.BDI.Z. 1997-06-30T01:25:41.96 10.0 undecidable manual SG 134 0.1998 0.31 0.3
--.EB9.Z. 1997-06-30T01:25:38.64 10.0 undecidable manual PG 2 0.2109 0.22 1.2
--.BDI.Z. 1997-06-30T01:25:37.90 10.0 undecidable manual PG 134 0.1998 -0.23 1.2
--.GU9.Z. 1997-06-30T01:25:37.86 10.0 positive manual PG 42 0.1998 -0.26 2
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