Earthquake with magnitude of Md 2.6 on date 30-09-1997 and time 08:59:04 (UTC) in region 6 km NE Nocera Umbra (PG)

A magnitude Md 2.6 earthquake occured in region: 6 km NE Nocera Umbra (PG), on

  • 30-09-1997 08:59:04 (UTC)
  • 30-09-1997 10:59:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.153, 12.837 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 6 5839 5839
Fiuminata MC 9 1402 7241
Sefro MC 9 422 7663
Gualdo Tadino PG 10 15208 22871
Valtopina PG 12 1398 24269
Pioraco MC 12 1134 25403
Serravalle di Chienti MC 13 1070 26473
Esanatoglia MC 14 2034 28507
Fossato di Vico PG 17 2840 31347
Matelica MC 18 9981 41328
Muccia MC 19 915 42243
Camerino MC 19 6974 49217
Castelraimondo MC 19 4587 53804
Valfabbrica PG 19 3389 57193

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Foligno (57155 inhabitants)
37 Km E of Perugia (166134 inhabitants)
68 Km N of Terni (111501 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
78 Km S of Fano (60888 inhabitants)
85 Km S of Pesaro (94582 inhabitants)
85 Km E of Arezzo (99543 inhabitants)
90 Km NW of Teramo (54892 inhabitants)
100 Km NW of L'Aquila (69753 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 2.6
ML-VAX 1.6
1997-09-30
08:59:04
43.153 12.837 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 285479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-30 08:59:04 ± 0.269
Latitude 43.1530 ± 0.0091
Longitude 12.8370 ± 0.0207
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 285479

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) 1959
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01449
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 285479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:29:08

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 285479
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
--.AQU.Z. 1997-09-30T08:59:36.50 10.0 undecidable manual SG 152 0.0081 -0.3 0.6
--.CRE.Z. 1997-09-30T08:59:34.31 10.0 undecidable manual SG 306 0.0071 0.9 0.2
--.SDI.Z. 1997-09-30T08:59:33.66 10.0 undecidable manual PN 153 0.0145 -0.32 1.1
--.PQ9.Z. 1997-09-30T08:59:28.46 10.0 undecidable manual PN 159 0.0108 0.08 1.5
--.SFI.Z. 1997-09-30T08:59:25.21 10.0 undecidable manual PG 316 0.0093 -0.64 0.9
--.FB9.Z. 1997-09-30T08:59:25.12 10.0 undecidable manual SG 355 0.0049 -0.14 0.8
--.AQU.Z. 1997-09-30T08:59:23.00 10.0 undecidable manual PG 152 0.0081 -0.31 1.5
--.MNS.Z. 1997-09-30T08:59:22.31 10.0 undecidable manual PG 188 0.007 1.29 0.2
--.CRE.Z. 1997-09-30T08:59:21.39 10.0 undecidable manual PG 306 0.0071 0.04 1.9
--.ARV.Z. 1997-09-30T08:59:19.74 10.0 undecidable manual SG 12 0.0032 1.15 0.1
--.FB9.Z. 1997-09-30T08:59:16.28 10.0 undecidable manual PG 355 0.0049 -0.36 1.6
--.ARV.Z. 1997-09-30T08:59:12.83 10.0 undecidable manual PG 12 0.0032 0.04 2
--.ASS.Z. 1997-09-30T08:59:11.69 10.0 undecidable manual SG 235 0.0015 0.41 0.6
--.ASS.Z. 1997-09-30T08:59:07.93 10.0 undecidable manual PG 235 0.0015 -0.64 1.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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