Earthquake with magnitude of Md 2.4 on date 20-01-2002 and time 06:41:38 (Italy) in region 6 km W Rocca Santa Maria (TE)

A magnitude Md 2.4 earthquake occured in region: 6 km W Rocca Santa Maria (TE), on

  • 20-01-2002 05:41:38 (UTC)
  • 20-01-2002 06:41:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.68, 13.46 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
Rocca Santa Maria TE 6 537 537
Valle Castellana TE 7 977 1514
Cortino TE 8 656 2170
Acquasanta Terme AP 10 2916 5086
Crognaleto TE 15 1297 6383
Amatrice RI 15 2657 9040
Campotosto AQ 16 542 9582
Fano Adriano TE 16 296 9878
Torricella Sicura TE 16 2641 12519
Arquata del Tronto AP 17 1178 13697
Accumoli RI 17 667 14364
Montorio al Vomano TE 18 8218 22582
Campli TE 19 7209 29791
Pietracamela TE 19 271 30062
Civitella del Tronto TE 20 5116 35178
Roccafluvione AP 20 2010 37188

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Teramo (54892 inhabitants)
37 Km N of L'Aquila (69753 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
67 Km W of Pescara (121014 inhabitants)
68 Km E of Terni (111501 inhabitants)
69 Km E of Foligno (57155 inhabitants)
69 Km NW of Chieti (51815 inhabitants)
97 Km NE of Tivoli (56533 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km E of Perugia (166134 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
Rev 1000 Md 2.4
ML-VAX 1.5
2002-01-20
05:41:38
42.68 13.46 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 434949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-01-20 05:41:38 ± 0.302
Latitude 42.68 ± 0.01
Longitude 13.46 ± 0.02
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 434949

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) 1810.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.0102
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 434949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:50:50

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 434949
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 Takeoff_angle Residual Weight
--.ARV.Z. 2002-01-20T05:42:09.93 10.0 undecidable manual SG 335 0.008 0.55 0.3
--.ASS.Z. 2002-01-20T05:42:03.79 10.0 undecidable manual SG 302 0.0063 0.71 0.2
--.SNTG.Z. 2002-01-20T05:42:02.84 10.0 undecidable manual SG 326 0.0062 0.27 0.6
--.MNS.Z. 2002-01-20T05:42:01.30 10.0 undecidable manual SG 242 0.0057 -0.24 0.7
--.RVI2.Z. 2002-01-20T05:42:00.83 10.0 undecidable manual PN 158 0.0102 0.54 0.6
--.FSSB.Z. 2002-01-20T05:42:00.11 10.0 undecidable manual PN 333 0.0101 0.04 1.5
--.ARV.Z. 2002-01-20T05:41:55.81 10.0 undecidable manual PG 335 0.008 -0.43 0.9
--.ASS.Z. 2002-01-20T05:41:52.36 10.0 undecidable manual PG 302 0.0063 -0.24 1.6
--.AQU.Z. 2002-01-20T05:41:51.63 10.0 undecidable manual SG 186 0.0029 0.45 0.4
--.MNS.Z. 2002-01-20T05:41:51.50 10.0 undecidable manual PG 242 0.0057 -0.5 0.9
--.SNTG.Z. 2002-01-20T05:41:51.84 10.0 undecidable manual PG 326 0.0062 -0.46 1
--.NRCA.Z. 2002-01-20T05:41:50.80 10.0 undecidable manual SG 300 0.0026 0.12 0.8
--.NRCA.Z. 2002-01-20T05:41:45.52 10.0 undecidable manual PG 300 0.0026 0.49 0.9
--.AQU.Z. 2002-01-20T05:41:45.58 10.0 positive manual PG 186 0.0029 -0.15 3.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download