Earthquake with magnitude of Md 2.3 on date 09-10-1997 and time 16:51:50 (Italy) in region 8 km SW Serravalle di Chienti (MC)

A magnitude Md 2.3 earthquake occured in region: 8 km SW Serravalle di Chienti (MC), on

  • 09-10-1997 14:51:50 (UTC)
  • 09-10-1997 16:51:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0120, 12.9050 at 5 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 8 1070 1070
Monte Cavallo MC 8 145 1215
Pieve Torina MC 13 1458 2673
Valtopina PG 13 1398 4071
Sellano PG 14 1079 5150
Muccia MC 14 915 6065
Nocera Umbra PG 15 5839 11904
Fiordimonte MC 15 202 12106
Sefro MC 16 422 12528
Pievebovigliana MC 16 866 13394
Foligno PG 17 57155 70549
Visso MC 17 1107 71656
Preci PG 18 724 72380
Spello PG 19 8645 81025
Camerino MC 19 6974 87999
Trevi PG 20 8469 96468
Pioraco MC 20 1134 97602
Fiuminata MC 20 1402 99004

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
43 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
76 Km NW of Teramo (54892 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
93 Km S of Fano (60888 inhabitants)
97 Km SE of Arezzo (99543 inhabitants)
100 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 2.3 1997-10-09
14:51:50
43.012 12.905 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 294439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-09 14:51:50 ± 0.188
Latitude 43.0120 ± 0.0075
Longitude 12.9050 ± 0.0245
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 294439

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) 2157.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00615
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 294439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:37:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-10-09T14:52:15.73 10.0 undecidable manual SG 352 0.6882 0.24 0.6
--.MNS.Z. 1997-10-09T14:52:14.40 10.0 undecidable manual SG 194 0.6438 0.1 0.8
--.ARV.Z. 1997-10-09T14:52:09.67 10.0 undecidable manual SG 3 0.4884 0.55 0.4
--.FB9.Z. 1997-10-09T14:52:04.43 10.0 undecidable manual PG 352 0.6882 -0.55 0.8
--.MNS.Z. 1997-10-09T14:52:04.23 10.0 undecidable manual PG 194 0.6438 -0.06 2
--.ARV.Z. 1997-10-09T14:52:01.28 10.0 undecidable manual PG 3 0.4884 -0.02 2.3
--.ASS.Z. 1997-10-09T14:51:57.50 10.0 undecidable manual SG 285 0.1887 -0.67 0.2
--.ASS.Z. 1997-10-09T14:51:55.50 10.0 undecidable manual PG 285 0.1887 0.52 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download