Earthquake with magnitude of Md 2.3 on date 29-11-2004 and time 05:11:50 (Italy) in region 2 km E Massa Martana (PG)

A magnitude Md 2.3 earthquake occured in region: 2 km E Massa Martana (PG), on

  • 29-11-2004 04:11:50 (UTC)
  • 29-11-2004 05:11:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7860, 12.5510 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
Massa Martana PG 2 3770 3770
Giano dell'Umbria PG 6 3846 7616
Acquasparta TR 11 4778 12394
Castel Ritaldi PG 11 3278 15672
Todi PG 12 16851 32523
Gualdo Cattaneo PG 14 6155 38678
Montefalco PG 15 5679 44357
Collazzone PG 15 3473 47830
Montecastrilli TR 16 5022 52852
Spoleto PG 16 38218 91070
Fratta Todina PG 17 1839 92909
Bevagna PG 17 5081 97990
Monte Castello di Vibio PG 17 1567 99557
Avigliano Umbro TR 18 2558 102115
Campello sul Clitunno PG 19 2442 104557
Trevi PG 19 8469 113026
San Gemini TR 19 5018 118044

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Foligno (57155 inhabitants)
26 Km NW of Terni (111501 inhabitants)
38 Km SE of Perugia (166134 inhabitants)
55 Km NE of Viterbo (67173 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
89 Km N of Guidonia Montecelio (88673 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
95 Km W of Teramo (54892 inhabitants)
99 Km NE of Civitavecchia (52991 inhabitants)
99 Km N of Roma (2864731 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 2004-11-29
04:11:50
42.786 12.551 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 508939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-11-29 04:11:50 ± 0.167
Latitude 42.7860 ± 0.0061
Longitude 12.5510 ± 0.0227
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 508939

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) 1970.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00364
Epicentral distance of station farthest from the epicenter (degree) 0.00688
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 4
Type of magnitude Md
Reference to an origin 508939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:07:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 2004-11-29T04:12:16.46 10.0 undecidable manual SG 21 0.7659 -0.43 0.3
--.CING.Z. 2004-11-29T04:12:16.25 10.0 undecidable manual SG 38 0.7437 -0.19 0.6
--.SNTG.Z. 2004-11-29T04:12:09.75 10.0 undecidable manual SG 31 0.5439 -0.09 0.8
--.MURB.Z. 2004-11-29T04:12:07.39 10.0 undecidable manual SG 357 0.4773 -0.16 0.8
--.ARV.Z. 2004-11-29T04:12:06.17 10.0 undecidable manual PG 21 0.7659 0.51 0.8
--.MNS.Z. 2004-11-29T04:12:05.86 10.0 undecidable manual SG 166 0.3996 0.38 0.5
--.CING.Z. 2004-11-29T04:12:05.94 10.0 undecidable manual PG 38 0.7437 0.54 0.8
--.SNTG.Z. 2004-11-29T04:12:01.43 10.0 undecidable manual PG 31 0.5439 -0.16 1.9
--.MURB.Z. 2004-11-29T04:12:00.31 10.0 undecidable manual PG 357 0.4773 0.04 2.3
--.MNS.Z. 2004-11-29T04:11:58.72 10.0 undecidable manual PG 166 0.3996 -0.35 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
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