Earthquake with magnitude of Md 2.1 on date 09-04-2005 and time 02:35:34 (Italy) in region 2 km N Foligno (PG)

A magnitude Md 2.1 earthquake occured in region: 2 km N Foligno (PG), on

  • 09-04-2005 00:35:34 (UTC)
  • 09-04-2005 02:35:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9700, 12.7010 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
Foligno PG 2 57155 57155
Spello PG 4 8645 65800
Bevagna PG 8 5081 70881
Montefalco PG 9 5679 76560
Cannara PG 10 4305 80865
Valtopina PG 11 1398 82263
Trevi PG 11 8469 90732
Assisi PG 13 28299 119031
Gualdo Cattaneo PG 14 6155 125186
Castel Ritaldi PG 16 3278 128464
Bastia Umbra PG 16 21874 150338
Nocera Umbra PG 17 5839 156177
Campello sul Clitunno PG 18 2442 158619
Giano dell'Umbria PG 18 3846 162465
Bettona PG 18 4367 166832

Municipalities with at least 50000 inhabitants

An earthquake occurred to
2 Km N of Foligno (57155 inhabitants)
30 Km SE of Perugia (166134 inhabitants)
46 Km N of Terni (111501 inhabitants)
78 Km NE of Viterbo (67173 inhabitants)
86 Km SE of Arezzo (99543 inhabitants)
89 Km W of Teramo (54892 inhabitants)
89 Km NW of L'Aquila (69753 inhabitants)
98 Km SW of Ancona (100861 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 2.1 2005-04-09
00:35:34
42.97 12.701 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 513819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-04-09 00:35:34 ± 0.827
Latitude 42.9700 ± 0.0246
Longitude 12.7010 ± 0.0702
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 513819

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) 6333.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 250
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.00648
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 513819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:13:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FSSB.Z. 2005-04-09T00:36:00.53 10.0 undecidable manual SG 4 0.7215 0.69 0.2
--.ARV.Z. 2005-04-09T00:35:53.49 10.0 undecidable manual SG 18 0.5439 -1.01 0.1
--.FSSB.Z. 2005-04-09T00:35:49.72 10.0 undecidable manual PG 4 0.7215 0.5 0.8
--.NRCA.Z. 2005-04-09T00:35:47.51 10.0 undecidable manual SG 114 0.3219 0.26 0.5
--.SNTG.Z. 2005-04-09T00:35:47.80 10.0 undecidable manual SG 31 0.333 0.47 0.4
--.ARV.Z. 2005-04-09T00:35:45.13 10.0 undecidable manual PG 18 0.5439 -1 0.2
--.SNTG.Z. 2005-04-09T00:35:42.22 10.0 negative manual PG 31 0.333 0.23 2.8
--.NRCA.Z. 2005-04-09T00:35:41.89 10.0 positive manual PG 114 0.3219 -0.06 3
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