Earthquake with magnitude of Md 2.1 on date 09-10-1997 and time 11:41:45 (Italy) in region 4 km S Serravalle di Chienti (MC)

A magnitude Md 2.1 earthquake occured in region: 4 km S Serravalle di Chienti (MC), on

  • 09-10-1997 09:41:45 (UTC)
  • 09-10-1997 11:41:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0330, 12.9440 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 5 1070 1070
Monte Cavallo MC 6 145 1215
Pieve Torina MC 9 1458 2673
Muccia MC 10 915 3588
Fiordimonte MC 12 202 3790
Pievebovigliana MC 12 866 4656
Sefro MC 13 422 5078
Nocera Umbra PG 15 5839 10917
Camerino MC 15 6974 17891
Valtopina PG 16 1398 19289
Sellano PG 16 1079 20368
Visso MC 16 1107 21475
Pioraco MC 17 1134 22609
Fiastra MC 17 559 23168
Fiuminata MC 17 1402 24570
Ussita MC 19 444 25014
Preci PG 19 724 25738
Acquacanina MC 19 121 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
75 Km NW of Teramo (54892 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
98 Km S of Pesaro (94582 inhabitants)
99 Km E of Arezzo (99543 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 2.1
ML-VAX 1.7
1997-10-09
09:41:45
43.033 12.944 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 294289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-09 09:41:45 ± 0.239
Latitude 43.0330 ± 0.0098
Longitude 12.9440 ± 0.0215
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 294289

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) 2058.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 196
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) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00607
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 294289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:36:54

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 294289
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. 1997-10-09T09:42:10.80 10.0 undecidable manual SG 349 0.666 -0.17 0.7
--.MNS.Z. 1997-10-09T09:42:10.00 10.0 undecidable manual SG 196 0.6771 -0.48 0.4
--.ARV.Z. 1997-10-09T09:42:04.63 10.0 undecidable manual SG 359 0.4551 0.93 0.1
--.MNS.Z. 1997-10-09T09:42:00.36 10.0 undecidable manual PG 196 0.6771 0.27 1.6
--.FB9.Z. 1997-10-09T09:41:59.38 10.0 undecidable manual PG 349 0.666 -0.58 0.8
--.ARV.Z. 1997-10-09T09:41:56.13 10.0 undecidable manual PG 359 0.4551 -0.04 2.2
--.ASS.Z. 1997-10-09T09:41:53.96 10.0 undecidable manual SG 277 0.2109 -0.39 0.6
--.ASS.Z. 1997-10-09T09:41:51.16 10.0 undecidable manual PG 277 0.2109 0.39 1.5
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