Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.1 on date 11-11-2019 and time 23:09:04 (Italy) in region 3 km NE Sansepolcro (AR)

A magnitude Md 1.1 earthquake occured in region: 3 km NE Sansepolcro (AR), on

  • 11-11-2019 22:09:04 (UTC)
  • 11-11-2019 23:09:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5970, 12.1550 at 9 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.

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 3 15884 15884
San Giustino PG 6 11297 27181
Anghiari AR 10 5638 32819
Citerna PG 11 3531 36350
Pieve Santo Stefano AR 12 3183 39533
Badia Tedalda AR 13 1087 40620
Monterchi AR 13 1757 42377
Borgo Pace PU 13 606 42983
Caprese Michelangelo AR 15 1426 44409
Mercatello sul Metauro PU 16 1378 45787
Sestino AR 17 1355 47142
Città di Castello PG 17 39913 87055
Monte Santa Maria Tiberina PG 18 1183 88238

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Arezzo (99543 inhabitants)
58 Km NW of Perugia (166134 inhabitants)
61 Km S of Cesena (96758 inhabitants)
61 Km SW of Rimini (147750 inhabitants)
70 Km S of Forlì (117913 inhabitants)
70 Km W of Pesaro (94582 inhabitants)
73 Km E of Siena (53903 inhabitants)
75 Km W of Fano (60888 inhabitants)
75 Km E of Firenze (382808 inhabitants)
80 Km S of Faenza (58541 inhabitants)
80 Km E of Scandicci (50609 inhabitants)
84 Km NW of Foligno (57155 inhabitants)
91 Km E of Prato (191150 inhabitants)
91 Km SE of Imola (69797 inhabitants)
91 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 		Md 1.1 2019-11-11
22:09:04		 43.5973 12.1553 9 2019-11-11
22:44:07		 Sala Sismica INGV-Roma 73791691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-11 22:09:04 ± 0.09
Latitude 43.5973 ± 0.0054
Longitude 12.1553 ± 0.0050
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73791691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 627
Semi-minor axis of confidence ellipse (meter) 394
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 204
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.02878
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 3
Type of magnitude Md
Reference to an origin 73791691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-11 22:44:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2019-11-11T22:09:15.80 0.6 undecidable manual S 87 34.2435 50 -0.29 45
IV.PE3.EHZ. 2019-11-11T22:09:14.96 0.3 undecidable manual S 68 29.4483 50 0.14 70
IV.ATPI.EHZ. 2019-11-11T22:09:13.56 0.3 undecidable manual S 129 25.6521 110 -0.02 72
IV.APEC.HHZ. 2019-11-11T22:09:12.67 0.3 undecidable manual S 101 21.6672 113 0.37 68
IV.CRE.HHZ. 2019-11-11T22:09:10.80 0.6 undecidable manual S 278 16.5723 119 0.1 48
IV.NARO.HHZ. 2019-11-11T22:09:10.71 0.1 undecidable manual P 87 34.2435 50 -0.31 89
IV.PE3.EHZ. 2019-11-11T22:09:10.29 0.3 undecidable manual P 68 29.4483 50 -0.01 72
IV.ATPI.EHZ. 2019-11-11T22:09:09.44 0.1 undecidable manual P 129 25.6521 110 -0.14 94
IV.BADI.EHZ. 2019-11-11T22:09:09.36 0.3 undecidable manual S 144 12.0768 128 -0.04 74
IV.APEC.HHZ. 2019-11-11T22:09:09.12 0.1 undecidable manual P 101 21.6672 113 0.28 92
IV.CRE.HHZ. 2019-11-11T22:09:08.10 0.1 undecidable manual P 278 16.5723 119 0.19 95
IV.PARC.HHZ. 2019-11-11T22:09:08.30 0.3 undecidable manual S 50 8.7801 137 -0.26 71
IV.BADI.EHZ. 2019-11-11T22:09:07.28 0.1 undecidable manual P 144 12.0768 128 0.12 97
IV.SSP9.EHZ. 2019-11-11T22:09:07.14 0.3 undecidable manual S 217 3.1968 161 -0.39 69
IV.SSP9.EHZ. 2019-11-11T22:09:06.11 0.1 undecidable manual P 217 3.1968 161 0.02 100
IV.PARC.HHZ. 2019-11-11T22:09:06.74 0.1 undecidable manual P 50 8.7801 137 0.07 98
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