Earthquake with magnitude of Md 2.8 on date 13-09-1997 and time 21:38:18 (Italy) in region 5 km S Serravalle di Chienti (MC)

A magnitude Md 2.8 earthquake occured in region: 5 km S Serravalle di Chienti (MC), on

  • 13-09-1997 19:38:18 (UTC)
  • 13-09-1997 21:38:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.03, 12.94 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 14 422 5078
Sellano PG 15 1079 6157
Nocera Umbra PG 16 5839 11996
Valtopina PG 16 1398 13394
Visso MC 16 1107 14501
Camerino MC 16 6974 21475
Pioraco MC 17 1134 22609
Fiastra MC 17 559 23168
Preci PG 18 724 23892
Fiuminata MC 18 1402 25294
Ussita MC 18 444 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)
57 Km NE of Terni (111501 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
98 Km S of Pesaro (94582 inhabitants)
99 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 2.8
ML-VAX 1.7
1997-09-13
19:38:18
43.03 12.94 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 277789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-13 19:38:18 ± 0.184
Latitude 43.03 ± 0.01
Longitude 12.94 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 277789

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) 1722.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.01311
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 277789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:22:25

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 277789
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
--.AQU.Z. 1997-09-13T19:38:45.38 10.0 undecidable manual SG 152 0.0067 0.09 0.7
--.SDI.Z. 1997-09-13T19:38:45.70 10.0 undecidable manual PN 153 0.0131 0.48 0.8
--.CSNT.Z. 1997-09-13T19:38:43.32 10.0 undecidable manual PN 290 0.0115 0.59 0.8
--.SFI.Z. 1997-09-13T19:38:42.18 10.0 undecidable manual PN 318 0.0106 0.8 0.6
--.MNS.Z. 1997-09-13T19:38:42.53 10.0 undecidable manual SG 196 0.006 -0.1 0.8
--.PQ9.Z. 1997-09-13T19:38:40.50 10.0 undecidable manual PG 161 0.0095 0.48 0.9
--.ARV.Z. 1997-09-13T19:38:35.99 10.0 undecidable manual SG 359 0.0042 -0.36 0.4
--.AQU.Z. 1997-09-13T19:38:33.80 10.0 undecidable manual PG 152 0.0067 -0.8 0.7
--.MNS.Z. 1997-09-13T19:38:31.56 10.0 undecidable manual PG 196 0.006 -0.79 0.7
--.ARV.Z. 1997-09-13T19:38:28.40 10.0 undecidable manual PG 359 0.0042 -0.32 1.3
--.ASS.Z. 1997-09-13T19:38:26.42 10.0 undecidable manual SG 279 0.0019 -0.34 0.5
--.ASS.Z. 1997-09-13T19:38:23.20 10.0 positive manual PG 279 0.0019 0.02 3.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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