Earthquake with magnitude of ML 0.3 on date 23-12-2014 and time 00:50:49 (UTC) in region 3 km SW Sansepolcro (AR)

A magnitude ML 0.3 earthquake occured in region: 3 km SW Sansepolcro (AR), on

  • 23-12-2014 00:50:49 (UTC)
  • 23-12-2014 01:50:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5410, 12.1290 at 7 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 4 15884 15884
San Giustino PG 4 11297 27181
Citerna PG 5 3531 30712
Anghiari AR 6 5638 36350
Monterchi AR 6 1757 38107
Monte Santa Maria Tiberina PG 12 1183 39290
CittĂ  di Castello PG 13 39913 79203
Pieve Santo Stefano AR 16 3183 82386
Caprese Michelangelo AR 16 1426 83812
Borgo Pace PU 19 606 84418
Badia Tedalda AR 19 1087 85505

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Arezzo (99543 inhabitants)
53 Km NW of Perugia (166134 inhabitants)
67 Km S of Cesena (96758 inhabitants)
68 Km SW of Rimini (147750 inhabitants)
69 Km E of Siena (53903 inhabitants)
75 Km E of Firenze (382808 inhabitants)
75 Km SW of Pesaro (94582 inhabitants)
76 Km S of Forlì (117913 inhabitants)
79 Km W of Fano (60888 inhabitants)
80 Km E of Scandicci (50609 inhabitants)
80 Km NW of Foligno (57155 inhabitants)
85 Km S of Faenza (58541 inhabitants)
91 Km E of Prato (191150 inhabitants)
96 Km SE of Imola (69797 inhabitants)
98 Km S of Ravenna (159116 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
Reviewed
Rev100
ML 0.3 2014-12-23
00:50:49
43.5413 12.129 7 2014-12-23
00:54:56
Sala Sismica INGV-Roma 15669151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-23 00:50:49 ± 0.05
Latitude 43.5413 ± 0.0018
Longitude 12.1290 ± 0.0025
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 15669151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 160
Semi-minor axis of confidence ellipse (meter) 73
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 140
Circular confidence region, given by single value of horizontal uncertainty (meter) 160.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.24282
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 15669151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-23 00:54:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2014-12-23T00:50:59.17 0.6 undecidable manual S 209 26.9508 105 -0.02 49
IV.CAFI.HHZ. 2014-12-23T00:50:55.03 0.3 positive manual P 209 26.9508 105 -0.06 73
IV.PARC.HHZ. 2014-12-23T00:50:55.18 0.6 undecidable manual S 36 14.7741 117 -0.05 50
IV.CRE.HHZ. 2014-12-23T00:50:55.94 0.6 undecidable manual S 301 16.6722 114 0.13 49
IV.CRE.HHZ. 2014-12-23T00:50:53.12 0.1 undecidable manual P 301 16.6722 114 -0.02 99
IV.BADI.EHZ. 2014-12-23T00:50:53.83 0.6 undecidable manual S 111 9.879 127 0.04 50
IV.PARC.HHZ. 2014-12-23T00:50:52.80 0.1 positive manual P 36 14.7741 117 -0.01 100
IV.SSP9.EHZ. 2014-12-23T00:50:52.29 0.6 undecidable manual S 3 3.5964 154 -0.06 50
IV.BADI.EHZ. 2014-12-23T00:50:52.05 0.3 negative manual P 111 9.879 127 0.08 75
IV.SSP9.EHZ. 2014-12-23T00:50:51.10 1.0 negative manual P 3 3.5964 154 -0.04 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHE. ML:0.3 0.000020150000000000002 0.5 AML other m 2014-12-23T00:50:55.77
IV.PARC.HHN. ML:0.4 0.0000272 0.28 AML other m 2014-12-23T00:50:55.66
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