Earthquake with magnitude of Md 2.3 on date 06-04-2004 and time 07:00:59 (Italy) in region 4 km NW Poggiodomo (PG)

A magnitude Md 2.3 earthquake occured in region: 4 km NW Poggiodomo (PG), on

  • 06-04-2004 05:00:59 (UTC)
  • 06-04-2004 07:00:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7390, 12.8970 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
Poggiodomo PG 4 117 117
Vallo di Nera PG 4 364 481
Sant'Anatolia di Narco PG 5 564 1045
Scheggino PG 6 461 1506
Cerreto di Spoleto PG 9 1075 2581
Cascia PG 10 3217 5798
Monteleone di Spoleto PG 11 599 6397
Spoleto PG 13 38218 44615
Campello sul Clitunno PG 13 2442 47057
Ferentillo TR 16 1913 48970
Sellano PG 17 1079 50049
Norcia PG 17 4957 55006
Polino TR 18 233 55239
Montefranco TR 19 1276 56515
Preci PG 20 724 57239
Trevi PG 20 8469 65708

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Terni (111501 inhabitants)
29 Km SE of Foligno (57155 inhabitants)
58 Km SE of Perugia (166134 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
67 Km W of Teramo (54892 inhabitants)
74 Km E of Viterbo (67173 inhabitants)
83 Km N of Guidonia Montecelio (88673 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
100 Km NE 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 2004-04-06
05:00:59
42.739 12.897 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 496029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-04-06 05:00:59 ± 0.178
Latitude 42.7390 ± 0.0105
Longitude 12.8970 ± 0.0187
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 496029

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) 1925.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00461
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 496029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:53:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SNTG.Z. 2004-04-06T05:01:18.53 10.0 undecidable manual SG 3 0.5106 0.79 0.1
--.MNS.Z. 2004-04-06T05:01:14.16 10.0 undecidable manual SG 204 0.3885 0.56 0.4
--.ASS.Z. 2004-04-06T05:01:13.48 10.0 undecidable manual SG 331 0.3663 0.46 0.5
--.SNTG.Z. 2004-04-06T05:01:09.42 10.0 undecidable manual PG 3 0.5106 -0.5 0.9
--.NRCA.Z. 2004-04-06T05:01:07.53 10.0 undecidable manual SG 59 0.1776 0.46 0.5
--.MNS.Z. 2004-04-06T05:01:07.35 10.0 undecidable manual PG 204 0.3885 -0.18 2
--.ASS.Z. 2004-04-06T05:01:06.82 10.0 undecidable manual PG 331 0.3663 -0.37 1.5
--.NRCA.Z. 2004-04-06T05:01:03.54 10.0 undecidable manual PG 59 0.1776 -0.22 2
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