Earthquake with magnitude of Md 2.1 on date 16-05-2001 and time 03:08:22 (Italy) in region 5 km SW Porcari (LU)

A magnitude Md 2.1 earthquake occured in region: 5 km SW Porcari (LU), on

  • 16-05-2001 01:08:22 (UTC)
  • 16-05-2001 03:08:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7960, 10.5910 at 8 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
Porcari LU 5 8845 8845
Capannori LU 6 46252 55097
Altopascio LU 7 15481 70578
Buti PI 8 5791 76369
Montecarlo LU 9 4428 80797
Lucca LU 9 89046 169843
Bientina PI 10 8062 177905
Calci PI 10 6426 184331
Vicopisano PI 11 8559 192890
Chiesina Uzzanese PT 12 4552 197442
San Giuliano Terme PI 12 31399 228841
Calcinaia PI 13 12439 241280
Santa Maria a Monte PI 14 13253 254533
Cascina PI 14 45257 299790
Uzzano PT 14 5770 305560
Ponte Buggianese PT 14 8804 314364
Pescia PT 14 19644 334008
Buggiano PT 15 8825 342833
Pontedera PI 15 29223 372056
Villa Basilica LU 15 1633 373689
Castelfranco di Sotto PI 16 13427 387116
Vecchiano PI 16 12189 399305
Pisa PI 18 89158 488463
Montecatini-Terme PT 18 20409 508872
Santa Croce sull'Arno PI 18 14601 523473
Massa e Cozzile PT 18 7983 531456
Pieve a Nievole PT 19 9266 540722
Fucecchio FI 19 23618 564340
Montopoli in Val d'Arno PI 20 11148 575488
Ponsacco PI 20 15611 591099
Monsummano Terme PT 20 21338 612437

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SE of Lucca (89046 inhabitants)
18 Km NE of Pisa (89158 inhabitants)
28 Km E of Viareggio (62467 inhabitants)
30 Km SW of Pistoia (90315 inhabitants)
35 Km NE of Livorno (159219 inhabitants)
42 Km W of Prato (191150 inhabitants)
45 Km SE of Massa (69479 inhabitants)
48 Km W of Scandicci (50609 inhabitants)
50 Km SE of Carrara (63133 inhabitants)
54 Km W of Firenze (382808 inhabitants)
70 Km E of La Spezia (93959 inhabitants)
80 Km NW of Siena (53903 inhabitants)
98 Km SW of Bologna (386663 inhabitants)
98 Km S of Modena (184973 inhabitants)
100 Km S of Reggio nell'Emilia (171345 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 2001-05-16
01:08:22
43.796 10.591 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 417939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-05-16 01:08:22 ± 0.125
Latitude 43.7960 ± 0.0078
Longitude 10.5910 ± 0.0299
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 417939

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) 2553.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00534
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 417939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:33:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CSNT.Z. 2001-05-16T01:08:43.73 10.0 undecidable manual SG 122 0.5883 -0.53 0
--.GU9.Z. 2001-05-16T01:08:42.33 10.0 undecidable manual SG 359 0.5439 -0.4 0.1
--.CSNT.Z. 2001-05-16T01:08:35.24 10.0 negative manual PG 122 0.5883 0.13 1.7
--.GU9.Z. 2001-05-16T01:08:34.31 10.0 negative manual PG 359 0.5439 0.09 2
--.BDI.Z. 2001-05-16T01:08:32.90 10.0 undecidable manual SG 0 0.2553 -0.28 0.3
--.BDI.Z. 2001-05-16T01:08:28.99 10.0 negative manual PG 0 0.2553 0.28 1.3
--.PII.Z. 2001-05-16T01:08:26.37 10.0 undecidable manual SG 212 0.0777 -0.58 0
--.PII.Z. 2001-05-16T01:08:25.70 10.0 positive manual PG 212 0.0777 -0.04 2.6
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