Earthquake with magnitude of Md 2.4 on date 28-09-1997 and time 05:03:21 (Italy) in region 5 km W Serravalle di Chienti (MC)

A magnitude Md 2.4 earthquake occured in region: 5 km W Serravalle di Chienti (MC), on

  • 28-09-1997 03:03:21 (UTC)
  • 28-09-1997 05:03:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.08, 12.89 at 3 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 5 1070 1070
Nocera Umbra PG 9 5839 6909
Sefro MC 9 422 7331
Valtopina PG 11 1398 8729
Muccia MC 13 915 9644
Monte Cavallo MC 13 145 9789
Fiuminata MC 13 1402 11191
Pieve Torina MC 14 1458 12649
Pioraco MC 14 1134 13783
Camerino MC 16 6974 20757
Pievebovigliana MC 16 866 21623
Fiordimonte MC 17 202 21825
Gualdo Tadino PG 19 15208 37033
Esanatoglia MC 20 2034 39067

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
86 Km S of Fano (60888 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
92 Km E of Arezzo (99543 inhabitants)
93 Km S of Pesaro (94582 inhabitants)
97 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
Rev 1000 Md 2.4
ML-VAX 1.7
1997-09-28
03:03:21
43.08 12.89 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 282639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-28 03:03:21 ± 0.15
Latitude 43.08 ± 0.01
Longitude 12.89 ± 0.01
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 282639

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) 1153.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01101
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 282639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:26:39

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 282639
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. 1997-09-28T03:03:45.62 10.0 undecidable manual PN 289 0.011 0.2 0.7
--.FB9.Z. 1997-09-28T03:03:44.77 10.0 undecidable manual SG 352 0.0055 0.21 0.4
--.SFI.Z. 1997-09-28T03:03:43.81 10.0 undecidable manual PN 317 0.01 -0.12 1
--.RSM.Z. 1997-09-28T03:03:40.21 10.0 undecidable manual PG 339 0.0082 0.1 1.2
--.ARV.Z. 1997-09-28T03:03:37.52 10.0 undecidable manual SG 5 0.0038 -0.17 0.5
--.MNS.Z. 1997-09-28T03:03:36.29 10.0 undecidable manual PG 192 0.0063 -0.11 1.4
--.FB9.Z. 1997-09-28T03:03:34.42 10.0 undecidable manual PG 352 0.0055 -0.34 0.3
--.ARV.Z. 1997-09-28T03:03:30.80 10.0 undecidable manual PG 5 0.0038 0.01 1.7
--.ASS.Z. 1997-09-28T03:03:27.75 10.0 undecidable manual SG 265 0.0015 -0.42 0.1
--.ASS.Z. 1997-09-28T03:03:25.42 10.0 positive manual PG 265 0.0015 0.13 2.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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