Earthquake with magnitude of Md 2.1 on date 25-06-2001 and time 04:24:02 (Italy) in region 6 km W Castelnuovo di Val di Cecina (PI)

A magnitude Md 2.1 earthquake occured in region: 6 km W Castelnuovo di Val di Cecina (PI), on

  • 25-06-2001 02:24:02 (UTC)
  • 25-06-2001 04:24:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2030, 10.8390 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
Castelnuovo di Val di Cecina PI 6 2231 2231
Monterotondo Marittimo GR 6 1371 3602
Monteverdi Marittimo PI 10 758 4360
Pomarance PI 11 5897 10257
Montieri GR 17 1204 11461
Massa Marittima GR 17 8375 19836
Sassetta LI 18 514 20350
Radicondoli SI 18 914 21264
Suvereto LI 19 3072 24336
Castagneto Carducci LI 19 9010 33346

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Siena (53903 inhabitants)
54 Km NW of Grosseto (82087 inhabitants)
58 Km SE of Livorno (159219 inhabitants)
67 Km SE of Pisa (89158 inhabitants)
68 Km SW of Scandicci (50609 inhabitants)
72 Km SW of Firenze (382808 inhabitants)
76 Km SE of Lucca (89046 inhabitants)
78 Km S of Prato (191150 inhabitants)
82 Km S of Pistoia (90315 inhabitants)
88 Km SE of Viareggio (62467 inhabitants)
89 Km W of Arezzo (99543 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 2001-06-25
02:24:02
43.203 10.839 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 420649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-06-25 02:24:02 ± 0.284
Latitude 43.2030 ± 0.0162
Longitude 10.8390 ± 0.0272
Depth (km) 5 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 420649

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) 2848.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 217
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00834
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 420649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:36:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CRE.Z. 2001-06-25T02:24:34.30 10.0 undecidable manual SG 62 0.9102 -0.58 0.1
--.PII.Z. 2001-06-25T02:24:22.82 10.0 undecidable manual SG 336 0.555 -0.8 0
--.CRE.Z. 2001-06-25T02:24:21.58 10.0 undecidable manual PG 62 0.9102 0.53 0.2
--.PGD.Z. 2001-06-25T02:24:21.71 10.0 undecidable manual PG 43 0.9213 0.3 0.6
--.CSNT.Z. 2001-06-25T02:24:18.79 10.0 undecidable manual SG 50 0.4218 -0.2 0.4
--.PII.Z. 2001-06-25T02:24:14.76 10.0 positive manual PG 336 0.555 0.05 2.5
--.CSNT.Z. 2001-06-25T02:24:12.11 10.0 positive manual PG 50 0.4218 0.07 2.5
--.GRFL.Z. 2001-06-25T02:24:06.81 10.0 undecidable manual SG 119 0.111 -0.42 0.2
--.GRFL.Z. 2001-06-25T02:24:05.19 10.0 positive manual PG 119 0.111 -0.06 2.5
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