Earthquake with magnitude of Md 2.0 on date 28-09-1997 and time 22:47:41 (Italy) in region 8 km SW Serravalle di Chienti (MC)

A magnitude Md 2.0 earthquake occured in region: 8 km SW Serravalle di Chienti (MC), on

  • 28-09-1997 20:47:41 (UTC)
  • 28-09-1997 22:47:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0100, 12.8940 at 10 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 9 1070 1070
Monte Cavallo MC 9 145 1215
Valtopina PG 13 1398 2613
Pieve Torina MC 13 1458 4071
Sellano PG 14 1079 5150
Nocera Umbra PG 14 5839 10989
Muccia MC 15 915 11904
Sefro MC 16 422 12326
Fiordimonte MC 16 202 12528
Foligno PG 17 57155 69683
Pievebovigliana MC 17 866 70549
Spello PG 18 8645 79194
Visso MC 18 1107 80301
Preci PG 19 724 81025
Trevi PG 19 8469 89494
Camerino MC 20 6974 96468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
42 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
93 Km S of Fano (60888 inhabitants)
96 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 2.0
ML-VAX 1.5
1997-09-28
20:47:41
43.01 12.894 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 283749
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-28 20:47:41 ± 0.212
Latitude 43.0100 ± 0.0082
Longitude 12.8940 ± 0.0259
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 283749

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) 2295.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
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) 0.00162
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
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 283749
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:27:37

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 283749
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
--.FB9.Z. 1997-09-28T20:48:06.21 10.0 undecidable manual SG 352 0.6882 0.71 0.1
--.MNS.Z. 1997-09-28T20:48:03.76 10.0 undecidable manual SG 193 0.6327 -0.35 0.4
--.ARV.Z. 1997-09-28T20:47:59.20 10.0 undecidable manual SG 4 0.4884 -0.15 0.7
--.FB9.Z. 1997-09-28T20:47:55.68 10.0 undecidable manual PG 352 0.6882 0.31 1.2
--.MNS.Z. 1997-09-28T20:47:54.63 10.0 negative manual PG 193 0.6327 0.07 3.2
--.ARV.Z. 1997-09-28T20:47:50.96 10.0 undecidable manual PG 4 0.4884 -0.75 0.3
--.ASS.Z. 1997-09-28T20:47:48.91 10.0 undecidable manual SG 286 0.1776 -0.45 0.4
--.ASS.Z. 1997-09-28T20:47:46.25 10.0 undecidable manual PG 286 0.1776 0.2 1.6
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