Earthquake with magnitude of Md 2.5 on date 21-02-1995 and time 13:08:41 (UTC) in region 6 km NE Sansepolcro (AR)

A magnitude Md 2.5 earthquake occured in region: 6 km NE Sansepolcro (AR), on

  • 21-02-1995 13:08:41 (UTC)
  • 21-02-1995 14:08:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6140, 12.1870 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
Sansepolcro AR 6 15884 15884
San Giustino PG 7 11297 27181
Borgo Pace PU 10 606 27787
Badia Tedalda AR 10 1087 28874
Mercatello sul Metauro PU 13 1378 30252
Pieve Santo Stefano AR 13 3183 33435
Anghiari AR 13 5638 39073
Citerna PG 14 3531 42604
Sestino AR 14 1355 43959
Monterchi AR 15 1757 45716
Caprese Michelangelo AR 17 1426 47142
CittĂ  di Castello PG 18 39913 87055
Belforte all'Isauro PU 19 769 87824
Sant'Angelo in Vado PU 19 4133 91957
Monte Santa Maria Tiberina PG 20 1183 93140
Apecchio PU 20 1882 95022
Casteldelci RN 20 407 95429

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Arezzo (99543 inhabitants)
58 Km SW of Rimini (147750 inhabitants)
58 Km S of Cesena (96758 inhabitants)
59 Km N of Perugia (166134 inhabitants)
67 Km W of Pesaro (94582 inhabitants)
69 Km S of Forlì (117913 inhabitants)
72 Km W of Fano (60888 inhabitants)
76 Km E of Siena (53903 inhabitants)
77 Km E of Firenze (382808 inhabitants)
79 Km SE of Faenza (58541 inhabitants)
82 Km E of Scandicci (50609 inhabitants)
84 Km NW of Foligno (57155 inhabitants)
89 Km S of Ravenna (159116 inhabitants)
91 Km SE of Imola (69797 inhabitants)
92 Km E of Prato (191150 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 2.5
ML-VAX 1.6
1995-02-21
13:08:41
43.614 12.187 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 223569
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1995-02-21 13:08:41 ± 0.355
Latitude 43.6140 ± 0.0202
Longitude 12.1870 ± 0.0227
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 223569

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) 2897.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01101
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 223569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:31:16

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 223569
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
--.BDI.Z. 1995-02-21T13:09:22.41 10.0 undecidable manual SN 291 1.221 0.16 0.6
--.ASS.Z. 1995-02-21T13:09:06.80 10.0 undecidable manual SG 148 0.6327 1.29 0.2
--.BDI.Z. 1995-02-21T13:09:05.13 10.0 undecidable manual PN 291 1.221 0.25 1.3
--.SFI.Z. 1995-02-21T13:08:57.28 10.0 undecidable manual SG 319 0.3774 1.43 0.2
--.PGD.Z. 1995-02-21T13:08:56.13 10.0 undecidable manual SG 307 0.4218 -1.49 0.1
--.RSM.Z. 1995-02-21T13:08:54.85 10.0 undecidable manual SG 30 0.3552 -0.56 0.7
--.ASS.Z. 1995-02-21T13:08:53.89 10.0 undecidable manual PG 148 0.6327 -0.91 1.1
--.RSM.Z. 1995-02-21T13:08:50.50 10.0 undecidable manual PG 30 0.3552 0.67 1.6
--.PGD.Z. 1995-02-21T13:08:50.72 10.0 undecidable manual PG 307 0.4218 0.06 2.3
--.SFI.Z. 1995-02-21T13:08:48.74 10.0 undecidable manual PG 319 0.3774 -0.9 1.2
--.CRE.Z. 1995-02-21T13:08:48.89 10.0 undecidable manual SG 271 0.1665 0.94 0.4
--.CRE.Z. 1995-02-21T13:08:44.82 10.0 undecidable manual PG 271 0.1665 -0.25 2.2
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