Earthquake with magnitude of Md 2.0 on date 30-09-1997 and time 15:34:59 (Italy) in region 4 km N Preci (PG)

A magnitude Md 2.0 earthquake occured in region: 4 km N Preci (PG), on

  • 30-09-1997 13:34:59 (UTC)
  • 30-09-1997 15:34:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9140, 13.0390 at 5 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 4 724 724
Visso MC 5 1107 1831
Ussita MC 9 444 2275
Sellano PG 9 1079 3354
Monte Cavallo MC 9 145 3499
Castelsantangelo sul Nera MC 10 281 3780
Norcia PG 14 4957 8737
Cerreto di Spoleto PG 14 1075 9812
Fiordimonte MC 14 202 10014
Pieve Torina MC 15 1458 11472
Fiastra MC 17 559 12031
Pievebovigliana MC 17 866 12897
Acquacanina MC 17 121 13018
Bolognola MC 18 142 13160
Muccia MC 19 915 14075
Serravalle di Chienti MC 19 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
61 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
94 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 2.0
ML-VAX 1.6
1997-09-30
13:34:59
42.914 13.039 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 285619
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-30 13:34:59 ± 0.36
Latitude 42.9140 ± 0.0106
Longitude 13.0390 ± 0.0481
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 285619

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) 4089.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 213
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) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00720
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 285619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:29:15

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 285619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-09-30T13:35:28.36 10.0 undecidable manual SG 346 0.7992 0.68 0.3
--.ARV.Z. 1997-09-30T13:35:20.51 10.0 undecidable manual SG 353 0.5883 -0.37 0.7
--.MNS.Z. 1997-09-30T13:35:20.70 10.0 undecidable manual SG 206 0.5883 -0.22 0.8
--.FB9.Z. 1997-09-30T13:35:15.69 10.0 undecidable manual PG 346 0.7992 0.09 1.8
--.ARV.Z. 1997-09-30T13:35:11.24 10.0 undecidable manual PG 353 0.5883 -0.43 1.5
--.MNS.Z. 1997-09-30T13:35:11.70 10.0 undecidable manual PG 206 0.5883 0 2.1
--.ASS.Z. 1997-09-30T13:35:10.50 10.0 undecidable manual SG 297 0.3108 -1.02 0.1
--.ASS.Z. 1997-09-30T13:35:07.00 10.0 undecidable manual PG 297 0.3108 0.73 0.7
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