Earthquake with magnitude of Md 2.3 on date 18-11-2004 and time 05:55:31 (UTC) in region 6 km SE Roccafluvione (AP)

A magnitude Md 2.3 earthquake occured in region: 6 km SE Roccafluvione (AP), on

  • 18-11-2004 05:55:31 (UTC)
  • 18-11-2004 06:55:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8100, 13.5100 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
Roccafluvione AP 6 2010 2010
Ascoli Piceno AP 7 49407 51417
Venarotta AP 8 2066 53483
Valle Castellana TE 8 977 54460
Acquasanta Terme AP 9 2916 57376
Folignano AP 10 9241 66617
Palmiano AP 11 196 66813
Civitella del Tronto TE 13 5116 71929
Rocca Santa Maria TE 14 537 72466
Maltignano AP 15 2401 74867
Montegallo AP 15 523 75390
Appignano del Tronto AP 16 1785 77175
Rotella AP 17 906 78081
Castignano AP 17 2796 80877
Sant'Egidio alla Vibrata TE 17 9811 90688
Campli TE 17 7209 97897
Force AP 17 1354 99251
Arquata del Tronto AP 18 1178 100429
Montemonaco AP 18 604 101033
Castel di Lama AP 18 8634 109667
Comunanza AP 18 3166 112833
Montedinove AP 19 488 113321
Ancarano TE 19 1857 115178

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Teramo (54892 inhabitants)
52 Km N of L'Aquila (69753 inhabitants)
62 Km NW of Montesilvano (53738 inhabitants)
68 Km E of Foligno (57155 inhabitants)
69 Km NW of Pescara (121014 inhabitants)
74 Km NW of Chieti (51815 inhabitants)
76 Km E of Terni (111501 inhabitants)
90 Km S of Ancona (100861 inhabitants)
97 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
Bulletin
Rev1000
Md 2.3 2004-11-18
05:55:31
42.81 13.51 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 507959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-11-18 05:55:31 ± 0.21
Latitude 42.8100 ± 0.0091
Longitude 13.5100 ± 0.0137
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 507959

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) 1510.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 202
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.01004
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 507959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:06:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 2004-11-18T05:56:10.73 10.0 undecidable manual SN 168 1.11 0.25 0.2
--.SNTG.Z. 2004-11-18T05:55:54.88 10.0 undecidable manual SG 317 0.5994 0.55 0
--.SDI.Z. 2004-11-18T05:55:53.90 10.0 undecidable manual PN 168 1.11 -0.25 0.5
--.SNTG.Z. 2004-11-18T05:55:44.63 10.0 undecidable manual PG 317 0.5994 -0.2 1
--.CAMP.E. 2004-11-18T05:55:42.96 10.0 undecidable manual SG 195 0.2775 0.06 0.7
--.LNSS.Z. 2004-11-18T05:55:40.82 10.0 undecidable manual PG 239 0.3996 -0.02 1.7
--.TERO.N. 2004-11-18T05:55:39.77 10.0 undecidable manual SG 159 0.1998 0.08 0.6
--.CAMP.Z. 2004-11-18T05:55:38.18 10.0 positive manual PG 195 0.2775 -0.05 3.3
--.TERO.Z. 2004-11-18T05:55:36.56 10.0 undecidable manual PG 159 0.1998 0.19 1.1
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