Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 10-09-2019 and time 19:31:24 (Italy) in region 6 km NE Sansepolcro (AR)

A magnitude ML 1.2 earthquake occured in region: 6 km NE Sansepolcro (AR), on

  • 10-09-2019 17:31:24 (UTC)
  • 10-09-2019 19:31:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6160, 12.1910 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 12 1378 30252
Pieve Santo Stefano AR 13 3183 33435
Anghiari AR 14 5638 39073
Sestino AR 14 1355 40428
Citerna PG 14 3531 43959
Monterchi AR 16 1757 45716
Caprese Michelangelo AR 17 1426 47142
Città di Castello PG 18 39913 87055
Belforte all'Isauro PU 19 769 87824
Sant'Angelo in Vado PU 19 4133 91957
Apecchio PU 20 1882 93839
Casteldelci RN 20 407 94246
Monte Santa Maria Tiberina PG 20 1183 95429

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 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)
71 Km W of Fano (60888 inhabitants)
77 Km E of Siena (53903 inhabitants)
77 Km E of Firenze (382808 inhabitants)
79 Km SE of Faenza (58541 inhabitants)
83 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)
93 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 		ML 1.2 2019-09-10
17:31:24		 43.6158 12.191 10 2020-02-28
16:42:25		 Bollettino Sismico Italiano INGV 76516631
Reviewed
Rev100 		ML 1.2 2019-09-10
17:31:24		 43.6155 12.194 10 2019-09-10
17:41:51		 Sala Sismica INGV-Roma 72291011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-10 17:31:24 ± 0.08
Latitude 43.6158 ± 0.0036
Longitude 12.1910 ± 0.0075
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76516631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 598
Semi-minor axis of confidence ellipse (meter) 333
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.28149
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 72291011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-10 17:41:51

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 76516631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-14 15:30:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2019-09-10T17:31:35.21 0.6 undecidable manual S 91 31.2465 50 0.02 48
IV.ATVO.HHZ. 2019-09-10T17:31:35.41 0.6 undecidable manual S 146 31.1466 50 0.24 46
IV.PIEI.HHZ. 2019-09-10T17:31:34.57 0.6 undecidable manual S 108 29.0487 50 -0.02 48
IV.ATMC.EHE. 2019-09-10T17:31:31.08 0.6 undecidable manual S 180 18.7701 117 -0.24 47
IV.NARO.HHZ. 2019-09-10T17:31:30.37 0.1 undecidable manual P 91 31.2465 50 -0.1 94
IV.ATVO.HHZ. 2019-09-10T17:31:30.43 0.1 undecidable manual P 146 31.1466 50 -0.03 95
IV.PIEI.HHZ. 2019-09-10T17:31:30.05 0.1 undecidable manual P 108 29.0487 50 -0.08 95
IV.BADI.EHZ. 2019-09-10T17:31:29.51 0.3 undecidable manual S 160 12.4764 127 0.03 74
IV.SSP9.EHZ. 2019-09-10T17:31:28.02 0.6 undecidable manual S 226 6.6933 145 -0.04 50
IV.ATMC.EHE. 2019-09-10T17:31:28.23 0.1 undecidable manual P 180 18.7701 117 -0.01 98
IV.BADI.EHZ. 2019-09-10T17:31:27.32 0.1 undecidable manual P 160 12.4764 127 0.14 96
IV.PARC.HHZ. 2019-09-10T17:31:27.60 0.6 undecidable manual S 46 5.2947 151 -0.2 48
IV.PARC.HHZ. 2019-09-10T17:31:26.40 0.1 undecidable manual P 46 5.2947 151 0.19 96
IV.SSP9.EHZ. 2019-09-10T17:31:26.36 0.1 undecidable manual P 226 6.6933 145 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:1.2 0.0003125 0.12 AML other m 2019-09-10T17:31:27.67
IV.PARC.HHE. ML:1.1 0.0002055 0.08 AML other m 2019-09-10T17:31:27.67
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