Earthquake with magnitude of Md 2.6 on date 10-09-1997 and time 08:59:39 (Italy) in region 9 km W Monte Cavallo (MC)

A magnitude Md 2.6 earthquake occured in region: 9 km W Monte Cavallo (MC), on

  • 10-09-1997 06:59:39 (UTC)
  • 10-09-1997 08:59:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43, 12.9 at 6 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
Monte Cavallo MC 9 145 145
Serravalle di Chienti MC 10 1070 1215
Sellano PG 12 1079 2294
Valtopina PG 13 1398 3692
Pieve Torina MC 14 1458 5150
Nocera Umbra PG 15 5839 10989
Muccia MC 16 915 11904
Foligno PG 16 57155 69059
Fiordimonte MC 17 202 69261
Pievebovigliana MC 17 866 70127
Visso MC 17 1107 71234
Sefro MC 17 422 71656
Preci PG 18 724 72380
Trevi PG 18 8469 80849
Spello PG 18 8645 89494
Cerreto di Spoleto PG 20 1075 90569

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
43 Km E of Perugia (166134 inhabitants)
52 Km NE of Terni (111501 inhabitants)
76 Km NW of Teramo (54892 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
95 Km S of Fano (60888 inhabitants)
97 Km SE 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
Rev 1000 Md 2.6
ML-VAX 2.4
1997-09-10
06:59:39
43 12.9 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 277439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-10 06:59:39 ± 0.441
Latitude 43.00 ± 0.02
Longitude 12.90 ± 0.04
Depth (km) 6 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 277439

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) 3508.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.0017
Epicentral distance of station farthest from the epicenter (degree) 0.01303
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 277439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:22:06

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 277439
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
--.RDP.Z. 1997-09-10T07:00:20.23 10.0 undecidable manual SN 185 0.0112 -0.62 0.5
--.RMP.Z. 1997-09-10T07:00:19.34 10.0 undecidable manual SN 186 0.0107 -0.29 0.6
--.SFI.Z. 1997-09-10T07:00:19.85 10.0 undecidable manual SN 320 0.0106 0.42 0.5
--.PQ9.Z. 1997-09-10T07:00:15.96 10.0 undecidable manual SG 158 0.0093 0.11 0.7
--.SDI.Z. 1997-09-10T07:00:07.35 10.0 undecidable manual PN 151 0.013 1 0.7
--.AQU.Z. 1997-09-10T07:00:05.25 10.0 undecidable manual SG 149 0.0066 -0.96 0.4
--.CSNT.Z. 1997-09-10T07:00:04.73 10.0 undecidable manual PN 292 0.0113 1.01 0.8
--.SFI.Z. 1997-09-10T07:00:03.69 10.0 undecidable manual PN 320 0.0106 1.03 0.8
--.RMP.Z. 1997-09-10T07:00:02.00 10.0 undecidable manual PN 186 0.0107 -0.78 1
--.PQ9.Z. 1997-09-10T07:00:01.66 10.0 undecidable manual PG 158 0.0093 1.07 0.8
--.RDP.Z. 1997-09-10T07:00:01.60 10.0 undecidable manual PN 185 0.0112 -1.88 0.2
--.RSM.Z. 1997-09-10T07:00:00.00 10.0 undecidable manual PG 340 0.0088 0.44 1.5
--.AQU.Z. 1997-09-10T06:59:55.79 10.0 undecidable manual PG 149 0.0066 0.76 1.2
--.MNS.Z. 1997-09-10T06:59:52.94 10.0 undecidable manual PG 194 0.0057 -0.03 1.7
--.ARV.Z. 1997-09-10T06:59:49.66 10.0 positive manual PG 3 0.0045 -0.96 1.9
--.ASS.Z. 1997-09-10T06:59:46.26 10.0 undecidable manual SG 290 0.0017 -1.1 0.3
--.ASS.Z. 1997-09-10T06:59:44.29 10.0 positive manual PG 290 0.0017 0.15 3.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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