Earthquake with magnitude of Md 3.4 on date 15-10-1997 and time 02:12:25 (Italy) in region 3 km SW Preci (PG)

A magnitude Md 3.4 earthquake occured in region: 3 km SW Preci (PG), on

  • 15-10-1997 00:12:25 (UTC)
  • 15-10-1997 02:12:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.861, 13.02 at 3 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 3 724 724
Sellano PG 8 1079 1803
Cerreto di Spoleto PG 10 1075 2878
Norcia PG 10 4957 7835
Visso MC 10 1107 8942
Castelsantangelo sul Nera MC 12 281 9223
Ussita MC 14 444 9667
Monte Cavallo MC 15 145 9812
Cascia PG 16 3217 13029
Vallo di Nera PG 16 364 13393
Poggiodomo PG 18 117 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
58 Km E of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
99 Km N of Guidonia Montecelio (88673 inhabitants)
100 Km W of Montesilvano (53738 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 3.4
ML-VAX 2.8
1997-10-15
00:12:25
42.861 13.02 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 299939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-15 00:12:25 ± 0.308
Latitude 42.8610 ± 0.0066
Longitude 13.0200 ± 0.0190
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 299939

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) 1714.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.003
Epicentral distance of station farthest from the epicenter (degree) 0.01255
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 299939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:41:54

ML:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 299939
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 Takeoff_angle Residual Weight
--.FB9.Z. 1997-10-15T00:12:56.36 10.0 undecidable manual SG 347 0.0076 -0.01 0.6
--.CSNT.Z. 1997-10-15T00:12:52.59 10.0 undecidable manual PN 296 0.0125 0.36 1.1
--.SFI.Z. 1997-10-15T00:12:52.46 10.0 undecidable manual PN 320 0.0121 0.97 0.1
--.SDI.Z. 1997-10-15T00:12:51.70 10.0 undecidable manual PN 152 0.0116 0.34 1
--.ARV.Z. 1997-10-15T00:12:49.50 10.0 undecidable manual SG 354 0.0057 -0.15 0.5
--.RDP.Z. 1997-10-15T00:12:48.66 10.0 undecidable manual PN 191 0.01 0.22 1.4
--.AQU.Z. 1997-10-15T00:12:48.29 10.0 undecidable manual SG 150 0.0052 0.59 0.3
--.RMP.Z. 1997-10-15T00:12:47.58 10.0 undecidable manual PG 192 0.0096 -0.08 1.5
--.MNS.Z. 1997-10-15T00:12:45.74 10.0 undecidable manual SG 207 0.0048 -0.6 0.1
--.FB9.Z. 1997-10-15T00:12:43.50 10.0 undecidable manual PG 347 0.0076 -0.44 0.7
--.PQ9.Z. 1997-10-15T00:12:43.99 10.0 undecidable manual PG 161 0.0079 -0.13 1.6
--.ARV.Z. 1997-10-15T00:12:39.26 10.0 undecidable manual PG 354 0.0057 -0.35 0.9
--.AQU.Z. 1997-10-15T00:12:38.53 10.0 undecidable manual PG 150 0.0052 0.05 1.8
--.ASS.Z. 1997-10-15T00:12:38.87 10.0 undecidable manual SG 306 0.003 0.01 0.7
--.MNS.Z. 1997-10-15T00:12:37.45 10.0 positive manual PG 207 0.0048 -0.24 2.8
--.ASS.Z. 1997-10-15T00:12:33.76 10.0 undecidable manual PG 306 0.003 0.38 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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