Earthquake with magnitude of Md 2.3 on date 20-06-2001 and time 17:46:37 (Italy) in region 2 km NW Preci (PG)

A magnitude Md 2.3 earthquake occured in region: 2 km NW Preci (PG), on

  • 20-06-2001 15:46:37 (UTC)
  • 20-06-2001 17:46:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8940, 13.0230 at 16 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
Preci PG 2 724 724
Visso MC 7 1107 1831
Sellano PG 8 1079 2910
Castelsantangelo sul Nera MC 11 281 3191
Ussita MC 11 444 3635
Monte Cavallo MC 11 145 3780
Cerreto di Spoleto PG 12 1075 4855
Norcia PG 13 4957 9812
Fiordimonte MC 17 202 10014
Pieve Torina MC 17 1458 11472
Vallo di Nera PG 19 364 11836
Fiastra MC 19 559 12395
Cascia PG 19 3217 15612
Pievebovigliana MC 20 866 16478
Acquacanina MC 20 121 16599

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 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 2001-06-20
15:46:37
42.894 13.023 16 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 420239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-06-20 15:46:37 ± 0.234
Latitude 42.8940 ± 0.0060
Longitude 13.0230 ± 0.0168
Depth (km) 16 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 420239

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) 1518.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00542
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 420239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:36:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 2001-06-20T15:46:59.72 10.0 undecidable manual SG 354 0.5994 0.49 0.2
--.MNS.Z. 2001-06-20T15:46:58.24 10.0 undecidable manual SG 206 0.5661 0.23 0.4
--.SNTG.Z. 2001-06-20T15:46:51.53 10.0 undecidable manual SG 350 0.3552 -0.02 0.6
--.MNS.Z. 2001-06-20T15:46:49.31 10.0 undecidable manual PG 206 0.5661 -0.14 0.8
--.ASS.Z. 2001-06-20T15:46:49.82 10.0 undecidable manual SG 301 0.3108 -0.28 0.4
--.ARV.Z. 2001-06-20T15:46:49.95 10.0 undecidable manual PG 354 0.5994 -0.2 0.5
--.SNTG.Z. 2001-06-20T15:46:45.69 10.0 positive manual PG 350 0.3552 -0.03 2.9
--.NRCA.Z. 2001-06-20T15:46:44.28 10.0 undecidable manual SG 132 0.0888 0.47 0
--.ASS.Z. 2001-06-20T15:46:44.87 10.0 undecidable manual PG 301 0.3108 -0.01 1.3
--.NRCA.Z. 2001-06-20T15:46:41.80 10.0 positive manual PG 132 0.0888 -0.16 2.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download