Earthquake with magnitude of Md 2.5 on date 29-11-1997 and time 21:41:43 (Italy) in region 5 km SE Preci (PG)

A magnitude Md 2.5 earthquake occured in region: 5 km SE Preci (PG), on

  • 29-11-1997 20:41:43 (UTC)
  • 29-11-1997 21:41:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8510, 13.0870 at 15 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 5 724 724
Norcia PG 6 4957 5681
Castelsantangelo sul Nera MC 7 281 5962
Visso MC 9 1107 7069
Ussita MC 11 444 7513
Sellano PG 14 1079 8592
Cerreto di Spoleto PG 14 1075 9667
Cascia PG 16 3217 12884
Monte Cavallo MC 17 145 13029
Arquata del Tronto AP 19 1178 14207
Bolognola MC 20 142 14349
Poggiodomo PG 20 117 14466

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
99 Km NE of Guidonia Montecelio (88673 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 2.5 1997-11-29
20:41:43
42.851 13.087 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 314679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-11-29 20:41:43 ± 0.316
Latitude 42.8510 ± 0.0072
Longitude 13.0870 ± 0.0237
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 314679

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) 2090.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00016
Epicentral distance of station farthest from the epicenter (degree) 0.00494
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 314679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:55:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1997-11-29T20:42:03.83 10.0 undecidable manual SG 212 0.5439 0.18 0.5
--.SNTG.Z. 1997-11-29T20:41:59.47 10.0 undecidable manual SG 345 0.4107 0.16 0.6
--.ASS.Z. 1997-11-29T20:41:58.00 10.0 undecidable manual SG 303 0.3774 -0.19 0.6
--.MNS.Z. 1997-11-29T20:41:55.00 10.0 undecidable manual PG 212 0.5439 -0.3 0.9
--.SNTG.Z. 1997-11-29T20:41:52.35 10.0 undecidable manual PG 345 0.4107 -0.44 0.6
--.ASS.Z. 1997-11-29T20:41:52.56 10.0 undecidable manual PG 303 0.3774 0.41 0.7
--.NRCA.Z. 1997-11-29T20:41:48.64 10.0 undecidable manual SG 133 0.0222 -0.3 0.5
--.NRCA.Z. 1997-11-29T20:41:46.94 10.0 positive manual PG 133 0.0222 0.13 3.6
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