Earthquake with magnitude of Md 2.4 on date 10-10-1997 and time 09:26:12 (Italy) in region 7 km SE Nocera Umbra (PG)

A magnitude Md 2.4 earthquake occured in region: 7 km SE Nocera Umbra (PG), on

  • 10-10-1997 07:26:12 (UTC)
  • 10-10-1997 09:26:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0670, 12.8590 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 7 5839 5839
Serravalle di Chienti MC 8 1070 6909
Valtopina PG 9 1398 8307
Sefro MC 12 422 8729
Monte Cavallo MC 14 145 8874
Fiuminata MC 15 1402 10276
Muccia MC 15 915 11191
Pieve Torina MC 16 1458 12649
Pioraco MC 16 1134 13783
Spello PG 17 8645 22428
Foligno PG 18 57155 79583
Pievebovigliana MC 18 866 80449
Camerino MC 19 6974 87423
Fiordimonte MC 19 202 87625
Gualdo Tadino PG 19 15208 102833
Assisi PG 20 28299 131132

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
83 Km NW of Teramo (54892 inhabitants)
87 Km S of Fano (60888 inhabitants)
91 Km E of Arezzo (99543 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
94 Km S of Pesaro (94582 inhabitants)
95 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 2.4
ML-VAX 1.8
1997-10-10
07:26:12
43.067 12.859 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 294919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-10 07:26:12 ± 0.187
Latitude 43.0670 ± 0.0068
Longitude 12.8590 ± 0.0141
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 294919

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) 1375.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00769
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 294919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:37:28

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 294919
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
--.MNS.Z. 1997-10-10T07:26:37.75 10.0 undecidable manual SG 190 0.6882 -0.5 0.2
--.FB9.Z. 1997-10-10T07:26:36.14 10.0 undecidable manual SG 354 0.6216 0.06 0.8
--.CRE.Z. 1997-10-10T07:26:31.00 10.0 undecidable manual PG 310 0.8547 0.41 0.7
--.ARV.Z. 1997-10-10T07:26:29.80 10.0 undecidable manual SG 7 0.4329 0.11 0.8
--.MNS.Z. 1997-10-10T07:26:27.82 10.0 undecidable manual PG 190 0.6882 0.3 1.1
--.FB9.Z. 1997-10-10T07:26:25.77 10.0 undecidable manual PG 354 0.6216 -0.5 0.5
--.ARV.Z. 1997-10-10T07:26:22.58 10.0 undecidable manual PG 7 0.4329 0.01 2.1
--.ASS.Z. 1997-10-10T07:26:18.60 10.0 undecidable manual SG 267 0.1443 -0.22 0.7
--.ASS.Z. 1997-10-10T07:26:16.24 10.0 undecidable manual PG 267 0.1443 -0.06 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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