Earthquake with magnitude of Md 2.6 on date 04-10-1997 and time 03:36:58 (Italy) in region 6 km W Serravalle di Chienti (MC)

A magnitude Md 2.6 earthquake occured in region: 6 km W Serravalle di Chienti (MC), on

  • 04-10-1997 01:36:58 (UTC)
  • 04-10-1997 03:36:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.048, 12.884 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 10 5839 6909
Valtopina PG 11 1398 8307
Monte Cavallo MC 11 145 8452
Sefro MC 12 422 8874
Muccia MC 14 915 9789
Pieve Torina MC 14 1458 11247
Fiuminata MC 16 1402 12649
Pievebovigliana MC 17 866 13515
Fiordimonte MC 17 202 13717
Pioraco MC 17 1134 14851
Foligno PG 18 57155 72006
Camerino MC 18 6974 78980
Sellano PG 18 1079 80059
Spello PG 18 8645 88704

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
80 Km NW of Teramo (54892 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
94 Km SE of Arezzo (99543 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
96 Km S of Pesaro (94582 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 1.7
1997-10-04
01:36:58
43.048 12.884 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 288689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-04 01:36:58 ± 0.227
Latitude 43.0480 ± 0.0099
Longitude 12.8840 ± 0.0155
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 288689

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) 1674.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.01109
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 288689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:31:58

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 288689
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. 1997-10-04T01:37:26.55 10.0 undecidable manual SG 150 0.007 -0.17 0.7
--.MNS.Z. 1997-10-04T01:37:24.00 10.0 undecidable manual SG 192 0.0061 0.86 0.1
--.CSNT.Z. 1997-10-04T01:37:22.59 10.0 undecidable manual PN 290 0.0111 0.39 1
--.PQ9.Z. 1997-10-04T01:37:19.96 10.0 undecidable manual PN 159 0.0098 -0.31 1.3
--.ARV.Z. 1997-10-04T01:37:16.10 10.0 undecidable manual SG 5 0.004 0.28 0.7
--.CRE.Z. 1997-10-04T01:37:16.00 10.0 undecidable manual PG 310 0.0079 -0.46 1
--.AQU.Z. 1997-10-04T01:37:15.30 10.0 undecidable manual PG 150 0.007 0.35 1.4
--.MNS.Z. 1997-10-04T01:37:12.10 10.0 undecidable manual PG 192 0.0061 -0.6 0.8
--.ARV.Z. 1997-10-04T01:37:08.47 10.0 undecidable manual PG 5 0.004 0.13 2.1
--.ASS.Z. 1997-10-04T01:37:04.50 10.0 undecidable manual SG 274 0.0015 -0.43 0.5
--.ASS.Z. 1997-10-04T01:37:02.50 10.0 undecidable manual PG 274 0.0015 0.4 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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