Earthquake with magnitude of Md 3.1 on date 30-09-1997 and time 08:16:45 (Italy) in region 5 km E Nocera Umbra (PG)

A magnitude Md 3.1 earthquake occured in region: 5 km E Nocera Umbra (PG), on

  • 30-09-1997 06:16:45 (UTC)
  • 30-09-1997 08:16:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.092, 12.85 at 4 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
Nocera Umbra PG 5 5839 5839
Valtopina PG 9 1398 7237
Serravalle di Chienti MC 9 1070 8307
Sefro MC 10 422 8729
Fiuminata MC 13 1402 10131
Pioraco MC 15 1134 11265
Muccia MC 16 915 12180
Gualdo Tadino PG 16 15208 27388
Monte Cavallo MC 16 145 27533
Pieve Torina MC 17 1458 28991
Spello PG 18 8645 37636
Camerino MC 18 6974 44610
Foligno PG 19 57155 101765
Assisi PG 19 28299 130064
Pievebovigliana MC 19 866 130930
Esanatoglia MC 20 2034 132964

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
61 Km N of Terni (111501 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
85 Km S of Fano (60888 inhabitants)
89 Km E of Arezzo (99543 inhabitants)
91 Km S of Pesaro (94582 inhabitants)
94 Km NW of L'Aquila (69753 inhabitants)
97 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 3.1
ML-VAX 2.4
1997-09-30
06:16:45
43.092 12.85 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 285389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-30 06:16:45 ± 0.19
Latitude 43.0920 ± 0.0076
Longitude 12.8500 ± 0.0144
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 285389

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) 1437.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.01392
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:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 285389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:29:03

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 285389
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
--.CSNT.Z. 1997-09-30T06:17:26.18 10.0 undecidable manual SN 288 0.0108 -0.09 0.5
--.PQ9.Z. 1997-09-30T06:17:25.79 10.0 undecidable manual SN 158 0.0103 0.77 0.2
--.AQU.Z. 1997-09-30T06:17:16.26 10.0 undecidable manual SG 150 0.0075 0.48 0.4
--.CRE.Z. 1997-09-30T06:17:15.49 10.0 undecidable manual SG 309 0.0075 -0.23 0.6
--.SDI.Z. 1997-09-30T06:17:14.39 10.0 undecidable manual PN 152 0.0139 0.38 0.9
--.MNS.Z. 1997-09-30T06:17:12.81 10.0 undecidable manual SG 189 0.0064 1 0.1
--.RDP.Z. 1997-09-30T06:17:11.90 10.0 undecidable manual PN 184 0.012 0.05 1.2
--.CSNT.Z. 1997-09-30T06:17:09.48 10.0 undecidable manual PN 288 0.0108 0.36 1.1
--.FB9.Z. 1997-09-30T06:17:08.11 10.0 undecidable manual SG 354 0.0053 0.02 0.6
--.PQ9.Z. 1997-09-30T06:17:08.56 10.0 undecidable manual PN 158 0.0103 0.17 1.3
--.RSM.Z. 1997-09-30T06:17:04.77 10.0 undecidable manual PG 340 0.0079 0.91 0.6
--.CRE.Z. 1997-09-30T06:17:02.25 10.0 undecidable manual PG 309 0.0075 -0.78 0.7
--.AQU.Z. 1997-09-30T06:17:02.59 10.0 undecidable manual PG 150 0.0075 -0.47 1.4
--.ARV.Z. 1997-09-30T06:17:01.62 10.0 undecidable manual SG 9 0.0036 0.01 0.7
--.MNS.Z. 1997-09-30T06:16:59.44 10.0 positive manual PG 189 0.0064 -1.32 0.5
--.FB9.Z. 1997-09-30T06:16:58.31 10.0 undecidable manual PG 354 0.0053 -0.31 1.4
--.ARV.Z. 1997-09-30T06:16:54.93 10.0 positive manual PG 9 0.0036 0.05 3.4
--.ASS.Z. 1997-09-30T06:16:51.61 10.0 undecidable manual SG 258 0.0013 0.08 0.6
--.ASS.Z. 1997-09-30T06:16:49.16 10.0 positive manual PG 258 0.0013 0.11 2.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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