Earthquake with magnitude of Md 2.5 on date 07-10-1997 and time 10:26:24 (Italy) in region 6 km W Serravalle di Chienti (MC)

A magnitude Md 2.5 earthquake occured in region: 6 km W Serravalle di Chienti (MC), on

  • 07-10-1997 08:26:24 (UTC)
  • 07-10-1997 10:26:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0680, 12.8830 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
Serravalle di Chienti MC 6 1070 1070
Nocera Umbra PG 9 5839 6909
Valtopina PG 10 1398 8307
Sefro MC 10 422 8729
Monte Cavallo MC 13 145 8874
Muccia MC 13 915 9789
Pieve Torina MC 14 1458 11247
Fiuminata MC 14 1402 12649
Pioraco MC 15 1134 13783
Pievebovigliana MC 17 866 14649
Camerino MC 17 6974 21623
Fiordimonte MC 17 202 21825
Spello PG 19 8645 30470
Foligno PG 19 57155 87625
Gualdo Tadino PG 20 15208 102833

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
60 Km NE of Terni (111501 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
87 Km S of Fano (60888 inhabitants)
90 Km NW of L'Aquila (69753 inhabitants)
92 Km E of Arezzo (99543 inhabitants)
94 Km S of Pesaro (94582 inhabitants)
96 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 2.5
ML-VAX 1.6
1997-10-07
08:26:24
43.068 12.883 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 292219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-07 08:26:24 ± 0.169
Latitude 43.0680 ± 0.0054
Longitude 12.8830 ± 0.0143
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 292219

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) 1303.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01004
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 292219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:35:05

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 292219
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. 1997-10-07T08:26:49.81 10.0 undecidable manual SG 192 0.6882 0.03 0.6
--.SFI.Z. 1997-10-07T08:26:47.24 10.0 undecidable manual PN 318 1.11 0.53 0.2
--.FB9.Z. 1997-10-07T08:26:47.55 10.0 undecidable manual SG 352 0.6216 0.04 0.7
--.ARV.Z. 1997-10-07T08:26:41.25 10.0 undecidable manual SG 5 0.4329 0.16 0.6
--.CRE.Z. 1997-10-07T08:26:41.88 10.0 undecidable manual PG 309 0.8769 -0.38 0.5
--.MNS.Z. 1997-10-07T08:26:38.91 10.0 undecidable manual PG 192 0.6882 -0.13 1.4
--.FB9.Z. 1997-10-07T08:26:37.48 10.0 undecidable manual PG 352 0.6216 -0.25 1.1
--.ARV.Z. 1997-10-07T08:26:33.96 10.0 undecidable manual PG 5 0.4329 -0.05 1.7
--.ASS.Z. 1997-10-07T08:26:30.62 10.0 undecidable manual SG 267 0.1665 -0.39 0.3
--.ASS.Z. 1997-10-07T08:26:28.37 10.0 positive manual PG 267 0.1665 0.17 2.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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