Earthquake with magnitude of Md 3.1 on date 26-09-1997 and time 15:52:53 (Italy) in region 9 km SW Serravalle di Chienti (MC)

A magnitude Md 3.1 earthquake occured in region: 9 km SW Serravalle di Chienti (MC), on

  • 26-09-1997 13:52:53 (UTC)
  • 26-09-1997 15:52:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.01, 12.88 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 9 1070 1070
Monte Cavallo MC 10 145 1215
Valtopina PG 11 1398 2613
Nocera Umbra PG 13 5839 8452
Sellano PG 14 1079 9531
Pieve Torina MC 15 1458 10989
Foligno PG 15 57155 68144
Muccia MC 16 915 69059
Sefro MC 16 422 69481
Spello PG 17 8645 78126
Fiordimonte MC 18 202 78328
Pievebovigliana MC 18 866 79194
Trevi PG 18 8469 87663
Visso MC 19 1107 88770
Preci PG 20 724 89494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
94 Km S of Fano (60888 inhabitants)
95 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 3.1
ML-MEDNET 3.6
1997-09-26
13:52:53
43.01 12.88 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 279799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-26 13:52:53 ± 0.194
Latitude 43.01 ± 0.01
Longitude 12.88 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 279799

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) 2424.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01319
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 279799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:24:11

ML:3.6

Field Value
Value 3.6
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 279799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 10:37:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SFI.Z. 1997-09-26T13:53:31.79 10.0 undecidable manual SN 320 0.0104 -1.31 0.2
--.PQ9.Z. 1997-09-26T13:53:30.90 10.0 undecidable manual SG 158 0.0095 -0.35 0.7
--.CRE.Z. 1997-09-26T13:53:26.15 10.0 undecidable manual SG 312 0.0082 0.55 0.6
--.RSM.Z. 1997-09-26T13:53:26.70 10.0 undecidable manual SG 341 0.0087 -0.84 0.4
--.SDI.Z. 1997-09-26T13:53:21.54 10.0 undecidable manual PN 151 0.0132 0.95 0.7
--.FB9.Z. 1997-09-26T13:53:20.60 10.0 undecidable manual SG 353 0.0062 1.61 0.1
--.AQU.Z. 1997-09-26T13:53:19.51 10.0 undecidable manual SG 149 0.0068 -1.32 0.2
--.RDP.Z. 1997-09-26T13:53:18.00 10.0 undecidable manual PN 185 0.0113 0.36 1.6
--.SFI.Z. 1997-09-26T13:53:17.12 10.0 undecidable manual PN 320 0.0104 0.73 1.2
--.RMP.Z. 1997-09-26T13:53:17.73 10.0 undecidable manual PN 186 0.0108 0.8 1
--.MNS.Z. 1997-09-26T13:53:16.50 10.0 undecidable manual SG 192 0.0057 -0.5 0.7
--.PQ9.Z. 1997-09-26T13:53:15.16 10.0 undecidable manual PG 158 0.0095 0.31 1.8
--.RSM.Z. 1997-09-26T13:53:14.19 10.0 undecidable manual PG 341 0.0087 1.02 0.9
--.ARV.Z. 1997-09-26T13:53:11.60 10.0 undecidable manual SG 5 0.0044 -0.6 0.6
--.CRE.Z. 1997-09-26T13:53:11.59 10.0 undecidable manual PG 312 0.0082 -0.46 1.8
--.FB9.Z. 1997-09-26T13:53:08.00 10.0 undecidable manual PG 353 0.0062 0.07 2.2
--.AQU.Z. 1997-09-26T13:53:08.55 10.0 undecidable manual PG 149 0.0068 -0.75 1.3
--.MNS.Z. 1997-09-26T13:53:07.00 10.0 undecidable manual PG 192 0.0057 -0.09 2.2
--.ARV.Z. 1997-09-26T13:53:03.42 10.0 undecidable manual PG 5 0.0044 -0.9 1
--.ASS.Z. 1997-09-26T13:53:00.83 10.0 undecidable manual SG 287 0.0015 0.41 0.7
--.ASS.Z. 1997-09-26T13:52:56.51 10.0 undecidable manual PG 287 0.0015 -1.01 0.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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