Earthquake with magnitude of Md 3.0 on date 01-10-1997 and time 11:15:43 (Italy) in region 3 km SE Nocera Umbra (PG)

A magnitude Md 3.0 earthquake occured in region: 3 km SE Nocera Umbra (PG), on

  • 01-10-1997 09:15:43 (UTC)
  • 01-10-1997 11:15:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.09, 12.81 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
Nocera Umbra PG 3 5839 5839
Valtopina PG 6 1398 7237
Serravalle di Chienti MC 12 1070 8307
Sefro MC 13 422 8729
Fiuminata MC 15 1402 10131
Gualdo Tadino PG 16 15208 25339
Spello PG 16 8645 33984
Assisi PG 16 28299 62283
Foligno PG 17 57155 119438
Pioraco MC 17 1134 120572
Valfabbrica PG 19 3389 123961
Monte Cavallo MC 19 145 124106
Muccia MC 19 915 125021

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
60 Km N of Terni (111501 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
85 Km S of Fano (60888 inhabitants)
86 Km E of Arezzo (99543 inhabitants)
87 Km NW of Teramo (54892 inhabitants)
92 Km S of Pesaro (94582 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
95 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 3.0
ML-VAX 2.1
1997-10-01
09:15:43
43.09 12.81 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 286389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-01 09:15:43 ± 0.245
Latitude 43.09 ± 0.01
Longitude 12.81 ± 0.02
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 286389

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) 1817.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.01408
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

Field Value
Value 3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 286389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:29:56

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 286389
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
--.SDI.Z. 1997-10-01T09:16:12.96 10.0 undecidable manual PN 151 0.0141 1.21 0.1
--.MNS.Z. 1997-10-01T09:16:09.36 10.0 undecidable manual SG 187 0.0064 0.12 0.6
--.FB9.Z. 1997-10-01T09:16:06.80 10.0 undecidable manual SG 357 0.0053 0.47 0.4
--.PQ9.Z. 1997-10-01T09:16:06.47 10.0 undecidable manual PN 157 0.0104 0.39 0.9
--.CSNT.Z. 1997-10-01T09:16:06.25 10.0 undecidable manual PN 289 0.0104 -0.02 1.2
--.SFI.Z. 1997-10-01T09:16:04.81 10.0 undecidable manual PG 319 0.0096 0.04 1.2
--.RSM.Z. 1997-10-01T09:16:01.26 10.0 undecidable manual PG 342 0.0079 0.09 1.4
--.AQU.Z. 1997-10-01T09:16:00.40 10.0 undecidable manual PG 149 0.0077 -0.42 1
--.ARV.Z. 1997-10-01T09:15:59.81 10.0 undecidable manual SG 13 0.0037 0.64 0.3
--.CRE.Z. 1997-10-01T09:15:59.56 10.0 undecidable manual PG 310 0.0073 -0.52 0.9
--.MNS.Z. 1997-10-01T09:15:56.93 10.0 undecidable manual PG 187 0.0064 -1.23 0.1
--.FB9.Z. 1997-10-01T09:15:55.75 10.0 undecidable manual PG 357 0.0053 -0.32 1.3
--.ARV.Z. 1997-10-01T09:15:52.12 10.0 positive manual PG 13 0.0037 -0.23 2.7
--.ASS.Z. 1997-10-01T09:15:47.66 10.0 undecidable manual SG 255 0.0011 -0.04 0.6
--.ASS.Z. 1997-10-01T09:15:46.11 10.0 positive manual PG 255 0.0011 0.38 2.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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