Earthquake with magnitude of Md 2.3 on date 02-02-2003 and time 11:21:20 (UTC) in region 3 km S Valle Castellana (TE)

A magnitude Md 2.3 earthquake occured in region: 3 km S Valle Castellana (TE), on

  • 02-02-2003 11:21:20 (UTC)
  • 02-02-2003 12:21:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7100, 13.5000 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
Valle Castellana TE 3 977 977
Rocca Santa Maria TE 3 537 1514
Cortino TE 10 656 2170
Acquasanta Terme AP 10 2916 5086
Torricella Sicura TE 14 2641 7727
Civitella del Tronto TE 15 5116 12843
Campli TE 15 7209 20052
Folignano AP 17 9241 29293
Roccafluvione AP 17 2010 31303
Ascoli Piceno AP 17 49407 80710
Montorio al Vomano TE 18 8218 88928
Teramo TE 18 54892 143820
Fano Adriano TE 18 296 144116
Crognaleto TE 18 1297 145413
Arquata del Tronto AP 18 1178 146591
Venarotta AP 19 2066 148657
Amatrice RI 19 2657 151314
Campotosto AQ 20 542 151856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Teramo (54892 inhabitants)
41 Km N of L'Aquila (69753 inhabitants)
58 Km W of Montesilvano (53738 inhabitants)
65 Km W of Pescara (121014 inhabitants)
68 Km NW of Chieti (51815 inhabitants)
70 Km E of Foligno (57155 inhabitants)
72 Km E of Terni (111501 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 2.3
ML-VAX 1.5
2003-02-02
11:21:20
42.71 13.5 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 468889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-02-02 11:21:20 ± 0.277
Latitude 42.7100 ± 0.0111
Longitude 13.5000 ± 0.0263
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 468889

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) 2481.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 203
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.00923
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 468889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:24:33

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 468889
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
--.ASS.Z. 2003-02-02T11:21:44.88 10.0 undecidable manual SG 299 0.7104 -0.05 0.7
--.SNTG.Z. 2003-02-02T11:21:43.88 10.0 undecidable manual SG 323 0.6771 0 0.7
--.MNS.Z. 2003-02-02T11:21:43.55 10.0 undecidable manual SG 241 0.6882 -0.45 0.3
--.SDI.Z. 2003-02-02T11:21:40.41 10.0 undecidable manual PG 166 1.0212 0.19 1.2
--.AQU.Z. 2003-02-02T11:21:34.00 10.0 undecidable manual SG 191 0.3552 0.34 0.5
--.ASS.Z. 2003-02-02T11:21:34.56 10.0 undecidable manual PG 299 0.7104 0.13 1.6
--.MNS.Z. 2003-02-02T11:21:33.41 10.0 undecidable manual PG 241 0.6882 -0.49 0.6
--.SNTG.Z. 2003-02-02T11:21:33.29 10.0 undecidable manual PG 323 0.6771 -0.54 0.5
--.NRCA.Z. 2003-02-02T11:21:32.81 10.0 undecidable manual SG 293 0.3108 0.86 0
--.NRCA.Z. 2003-02-02T11:21:27.16 10.0 negative manual PG 293 0.3108 0.22 3.1
--.AQU.Z. 2003-02-02T11:21:27.92 10.0 undecidable manual PG 191 0.3552 -0.01 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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