Earthquake with magnitude of Md 3.2 on date 23-08-1997 and time 12:35:35 (Italy) in region 4 km NW Serravalle di Chienti (MC)

A magnitude Md 3.2 earthquake occured in region: 4 km NW Serravalle di Chienti (MC), on

  • 23-08-1997 10:35:35 (UTC)
  • 23-08-1997 12:35:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1, 12.93 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 4 1070 1070
Sefro MC 6 422 1492
Muccia MC 10 915 2407
Fiuminata MC 10 1402 3809
Pioraco MC 10 1134 4943
Nocera Umbra PG 11 5839 10782
Pieve Torina MC 12 1458 12240
Camerino MC 12 6974 19214
Monte Cavallo MC 13 145 19359
Pievebovigliana MC 13 866 20225
Fiordimonte MC 15 202 20427
Valtopina PG 15 1398 21825
Castelraimondo MC 16 4587 26412
Esanatoglia MC 17 2034 28446
Matelica MC 19 9981 38427
Gualdo Tadino PG 19 15208 53635
Gagliole MC 19 620 54255
Fiastra MC 20 559 54814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
64 Km NE of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
80 Km NW of Teramo (54892 inhabitants)
83 Km S of Fano (60888 inhabitants)
90 Km S of Pesaro (94582 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
94 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 3.2
ML-VAX 1.6
1997-08-23
10:35:35
43.1 12.93 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 276249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-08-23 10:35:35 ± 0.176
Latitude 43.1000 ± 0.0062
Longitude 12.9300 ± 0.0132
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 276249

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) 1278.5
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 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.01376
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 276249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:20:59

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 276249
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
--.RSM.Z. 1997-08-23T10:36:06.70 10.0 undecidable manual SG 337 0.008 -0.51 0.2
--.SDI.Z. 1997-08-23T10:36:04.50 10.0 undecidable manual PN 154 0.0138 1.15 0
--.AQU.Z. 1997-08-23T10:36:04.70 10.0 undecidable manual SG 154 0.0074 -0.07 0.6
--.MNS.Z. 1997-08-23T10:36:01.63 10.0 undecidable manual SG 194 0.0066 -0.44 0.3
--.RMP.Z. 1997-08-23T10:36:00.00 10.0 undecidable manual PN 187 0.0117 -0.12 1.1
--.CSNT.Z. 1997-08-23T10:35:59.43 10.0 undecidable manual PN 287 0.0112 -0.01 1.2
--.SFI.Z. 1997-08-23T10:35:57.91 10.0 undecidable manual PN 315 0.01 0.2 1.2
--.PQ9.Z. 1997-08-23T10:35:57.48 10.0 undecidable manual PN 161 0.0101 -0.34 0.8
--.RSM.Z. 1997-08-23T10:35:53.93 10.0 undecidable manual PG 337 0.008 0.26 1.2
--.AQU.Z. 1997-08-23T10:35:52.50 10.0 undecidable manual PG 154 0.0074 -0.21 1.3
--.MNS.Z. 1997-08-23T10:35:50.50 10.0 undecidable manual PG 194 0.0066 -0.2 1.3
--.ARV.Z. 1997-08-23T10:35:50.50 10.0 undecidable manual SG 1 0.0036 -0.08 0.6
--.ASS.Z. 1997-08-23T10:35:43.40 10.0 undecidable manual SG 259 0.0018 0.2 0.5
--.ARV.Z. 1997-08-23T10:35:43.94 10.0 positive manual PG 1 0.0036 -0.13 2.9
--.ASS.Z. 1997-08-23T10:35:39.87 10.0 undecidable manual PG 259 0.0018 0.06 1.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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