Earthquake with magnitude of Md 2.0 on date 21-10-2001 and time 07:07:35 (Italy) in region 4 km E Pieve Santo Stefano (AR)

A magnitude Md 2.0 earthquake occured in region: 4 km E Pieve Santo Stefano (AR), on

  • 21-10-2001 05:07:35 (UTC)
  • 21-10-2001 07:07:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6770, 12.0860 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
Pieve Santo Stefano AR 4 3183 3183
Caprese Michelangelo AR 9 1426 4609
Badia Tedalda AR 9 1087 5696
Chiusi della Verna AR 12 2023 7719
Sansepolcro AR 13 15884 23603
Casteldelci RN 14 407 24010
Verghereto FC 15 1907 25917
Anghiari AR 15 5638 31555
San Giustino PG 16 11297 42852
Chitignano AR 17 899 43751
Borgo Pace PU 17 606 44357
Sestino AR 17 1355 45712
Citerna PG 20 3531 49243

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Arezzo (99543 inhabitants)
53 Km S of Cesena (96758 inhabitants)
58 Km SW of Rimini (147750 inhabitants)
61 Km S of Forlì (117913 inhabitants)
67 Km E of Firenze (382808 inhabitants)
68 Km NW of Perugia (166134 inhabitants)
70 Km S of Faenza (58541 inhabitants)
71 Km W of Pesaro (94582 inhabitants)
73 Km NE of Siena (53903 inhabitants)
73 Km E of Scandicci (50609 inhabitants)
77 Km W of Fano (60888 inhabitants)
81 Km SE of Imola (69797 inhabitants)
83 Km E of Prato (191150 inhabitants)
83 Km S of Ravenna (159116 inhabitants)
94 Km NW of Foligno (57155 inhabitants)
98 Km E of Pistoia (90315 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 2001-10-21
05:07:35
43.677 12.086 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 429479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-10-21 05:07:35 ± 0.158
Latitude 43.6770 ± 0.0133
Longitude 12.0860 ± 0.0115
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 429479

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) 1740.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.00664
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 429479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:45:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CSNT.Z. 2001-10-21T05:07:57.77 10.0 undecidable manual SG 250 0.5994 -0.31 0.6
--.FSSB.Z. 2001-10-21T05:07:54.57 10.0 undecidable manual SG 87 0.4995 0.04 0.8
--.ASS.Z. 2001-10-21T05:07:51.27 10.0 undecidable manual PG 145 0.7326 0.31 1.3
--.PGD.Z. 2001-10-21T05:07:49.38 10.0 undecidable manual SG 306 0.3219 0.96 0.1
--.CSNT.Z. 2001-10-21T05:07:48.28 10.0 undecidable manual PG 250 0.5994 -0.3 1.5
--.FSSB.Z. 2001-10-21T05:07:46.38 10.0 undecidable manual PG 87 0.4995 -0.15 2
--.SFI.Z. 2001-10-21T05:07:46.16 10.0 undecidable manual SG 322 0.2775 -0.56 0.4
--.PGD.Z. 2001-10-21T05:07:43.51 10.0 undecidable manual PG 306 0.3219 0.51 1.1
--.SFI.Z. 2001-10-21T05:07:41.62 10.0 undecidable manual PG 322 0.2775 -0.4 1.4
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