Earthquake with magnitude of Md 3.1 on date 27-09-1997 and time 12:49:53 (Italy) in region 2 km S Serravalle di Chienti (MC)

A magnitude Md 3.1 earthquake occured in region: 2 km S Serravalle di Chienti (MC), on

  • 27-09-1997 10:49:53 (UTC)
  • 27-09-1997 12:49:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.05, 12.96 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 3 1070 1070
Monte Cavallo MC 7 145 1215
Pieve Torina MC 7 1458 2673
Muccia MC 8 915 3588
Pievebovigliana MC 10 866 4454
Sefro MC 11 422 4876
Fiordimonte MC 11 202 5078
Camerino MC 13 6974 12052
Pioraco MC 15 1134 13186
Nocera Umbra PG 15 5839 19025
Fiuminata MC 16 1402 20427
Fiastra MC 16 559 20986
Valtopina PG 17 1398 22384
Visso MC 17 1107 23491
Acquacanina MC 18 121 23612
Sellano PG 18 1079 24691
Ussita MC 19 444 25135
Castelraimondo MC 20 4587 29722

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
60 Km NE of Terni (111501 inhabitants)
75 Km NW of Teramo (54892 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
96 Km S of Pesaro (94582 inhabitants)
99 Km E of Arezzo (99543 inhabitants)
99 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
Bulletin
Rev1000
Md 3.1
ML-VAX 2.9
1997-09-27
10:49:53
43.05 12.96 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 281659
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-27 10:49:53 ± 0.252
Latitude 43.05 ± 0.01
Longitude 12.96 ± 0.02
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 281659

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) 1905.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.01781
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 4
Type of magnitude Md
Reference to an origin 281659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:25:48

ML:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 281659
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
--.SFI.Z. 1997-09-27T10:50:35.10 10.0 undecidable manual SN 316 0.0105 1.19 0
--.BDI.Z. 1997-09-27T10:50:28.50 10.0 undecidable manual PN 301 0.0178 0.55 0.4
--.CRE.Z. 1997-09-27T10:50:26.80 10.0 undecidable manual SG 307 0.0083 0.25 0.5
--.RDP.Z. 1997-09-27T10:50:18.62 10.0 undecidable manual PN 187 0.0117 0.04 1.3
--.CSNT.Z. 1997-09-27T10:50:18.15 10.0 undecidable manual PN 289 0.0115 -0.16 1.2
--.RMP.Z. 1997-09-27T10:50:17.78 10.0 undecidable manual PN 188 0.0113 -0.1 1.3
--.FB9.Z. 1997-09-27T10:50:16.84 10.0 undecidable manual SG 348 0.0058 -0.93 0.1
--.SFI.Z. 1997-09-27T10:50:16.40 10.0 undecidable manual PN 316 0.0105 -0.38 0.9
--.RSM.Z. 1997-09-27T10:50:13.58 10.0 undecidable manual PG 337 0.0085 0.56 0.7
--.CRE.Z. 1997-09-27T10:50:12.90 10.0 undecidable manual PG 307 0.0083 -0.5 0.8
--.ARV.Z. 1997-09-27T10:50:10.90 10.0 undecidable manual SG 358 0.004 0.13 0.6
--.AQU.Z. 1997-09-27T10:50:09.95 10.0 undecidable manual PG 154 0.0069 0.31 1.3
--.FB9.Z. 1997-09-27T10:50:07.20 10.0 negative manual PG 348 0.0058 -0.32 2.5
--.MNS.Z. 1997-09-27T10:50:07.89 10.0 undecidable manual PG 196 0.0062 -0.41 1
--.ARV.Z. 1997-09-27T10:50:03.54 10.0 negative manual PG 358 0.004 0.07 3.2
--.ASS.Z. 1997-09-27T10:50:01.63 10.0 undecidable manual SG 272 0.0019 -0.59 0.2
--.ASS.Z. 1997-09-27T10:49:59.10 10.0 undecidable manual PG 272 0.0019 0.48 0.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download