Earthquake with magnitude of Md 2.0 on date 29-09-1997 and time 18:20:12 (Italy) in region 6 km SW Serravalle di Chienti (MC)

A magnitude Md 2.0 earthquake occured in region: 6 km SW Serravalle di Chienti (MC), on

  • 29-09-1997 16:20:12 (UTC)
  • 29-09-1997 18:20:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0260, 12.9250 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 6 1070 1070
Monte Cavallo MC 7 145 1215
Pieve Torina MC 11 1458 2673
Muccia MC 12 915 3588
Fiordimonte MC 14 202 3790
Sefro MC 14 422 4212
Pievebovigliana MC 14 866 5078
Valtopina PG 14 1398 6476
Nocera Umbra PG 15 5839 12315
Sellano PG 15 1079 13394
Camerino MC 17 6974 20368
Visso MC 17 1107 21475
Pioraco MC 18 1134 22609
Fiuminata MC 18 1402 24011
Preci PG 19 724 24735
Fiastra MC 19 559 25294
Foligno PG 20 57155 82449
Ussita MC 20 444 82893

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
56 Km NE of Terni (111501 inhabitants)
76 Km NW of Teramo (54892 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
98 Km SE of Arezzo (99543 inhabitants)
98 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 2.0
ML-VAX 1.6
1997-09-29
16:20:12
43.026 12.925 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 284809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-29 16:20:12 ± 0.213
Latitude 43.0260 ± 0.0101
Longitude 12.9250 ± 0.0162
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 284809

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) 1728.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00607
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 284809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:28:33

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 284809
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(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-09-29T16:20:36.10 10.0 undecidable manual SG 350 0.6771 -0.7 0.1
--.ARV.Z. 1997-09-29T16:20:29.76 10.0 undecidable manual SG 1 0.4662 -0.47 0.3
--.FB9.Z. 1997-09-29T16:20:26.63 10.0 undecidable manual PG 350 0.6771 0.29 1.2
--.MNS.Z. 1997-09-29T16:20:25.93 10.0 undecidable manual PG 195 0.6549 -0.23 1.4
--.ARV.Z. 1997-09-29T16:20:22.88 10.0 undecidable manual PG 1 0.4662 0.28 1.5
--.ASS.Z. 1997-09-29T16:20:20.00 10.0 undecidable manual SG 280 0.1998 -0.18 0.7
--.ASS.Z. 1997-09-29T16:20:17.00 10.0 positive manual PG 280 0.1998 0.2 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download