Earthquake with magnitude of Md 2.5 on date 28-09-1997 and time 13:10:13 (Italy) in region 4 km W Serravalle di Chienti (MC)

A magnitude Md 2.5 earthquake occured in region: 4 km W Serravalle di Chienti (MC), on

  • 28-09-1997 11:10:13 (UTC)
  • 28-09-1997 13:10:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.08, 12.91 at 2 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 4 1070 1070
Sefro MC 8 422 1492
Nocera Umbra PG 10 5839 7331
Muccia MC 11 915 8246
Monte Cavallo MC 12 145 8391
Pieve Torina MC 12 1458 9849
Fiuminata MC 12 1402 11251
Valtopina PG 13 1398 12649
Pioraco MC 13 1134 13783
Camerino MC 14 6974 20757
Pievebovigliana MC 14 866 21623
Fiordimonte MC 15 202 21825
Castelraimondo MC 19 4587 26412
Esanatoglia MC 20 2034 28446
Gualdo Tadino PG 20 15208 43654

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Foligno (57155 inhabitants)
42 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
80 Km NW of Teramo (54892 inhabitants)
86 Km S of Fano (60888 inhabitants)
90 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Pesaro (94582 inhabitants)
94 Km E of Arezzo (99543 inhabitants)
99 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 1.7
1997-09-28
11:10:13
43.08 12.91 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 283079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-28 11:10:13 ± 0.187
Latitude 43.08 ± 0.01
Longitude 12.91 ± 0.01
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 283079

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) 1206.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
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) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.01117
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 283079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:27:02

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 283079
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
--.CSNT.Z. 1997-09-28T11:10:37.77 10.0 undecidable manual PN 288 0.0112 -0.39 0.5
--.PQ9.Z. 1997-09-28T11:10:36.47 10.0 undecidable manual PN 160 0.01 0.04 1.4
--.SFI.Z. 1997-09-28T11:10:36.80 10.0 undecidable manual PN 317 0.0101 0.2 1.1
--.RSM.Z. 1997-09-28T11:10:33.20 10.0 undecidable manual PG 338 0.0082 0.5 0.3
--.CRE.Z. 1997-09-28T11:10:31.90 10.0 undecidable manual PG 307 0.0079 -0.24 1
--.ARV.Z. 1997-09-28T11:10:30.20 10.0 undecidable manual SG 3 0.0037 -0.01 0.7
--.ARV.Z. 1997-09-28T11:10:23.70 10.0 undecidable manual PG 3 0.0037 -0.1 1.6
--.ASS.Z. 1997-09-28T11:10:21.34 10.0 undecidable manual SG 264 0.0016 0.24 0.5
--.ASS.Z. 1997-09-28T11:10:18.00 10.0 undecidable manual PG 264 0.0016 -0.02 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download