ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 0.4 on date 03-03-2019 and time 19:08:54 (UTC) in region 3 km SW Sansepolcro (AR)

A magnitude ML 0.4 earthquake occured in region: 3 km SW Sansepolcro (AR), on

  • 03-03-2019 19:08:54 (UTC)
  • 03-03-2019 20:08:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.56, 12.11 at 8 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 3 15884 15884
Anghiari AR 5 5638 21522
San Giustino PG 5 11297 32819
Citerna PG 7 3531 36350
Monterchi AR 8 1757 38107
Pieve Santo Stefano AR 14 3183 41290
Monte Santa Maria Tiberina PG 14 1183 42473
Caprese Michelangelo AR 14 1426 43899
Città di Castello PG 15 39913 83812
Badia Tedalda AR 18 1087 84899
Borgo Pace PU 18 606 85505
Subbiano AR 20 6331 91836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Arezzo (99543 inhabitants)
55 Km NW of Perugia (166134 inhabitants)
65 Km S of Cesena (96758 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
69 Km E of Siena (53903 inhabitants)
73 Km E of Firenze (382808 inhabitants)
74 Km S of Forlì (117913 inhabitants)
75 Km SW of Pesaro (94582 inhabitants)
78 Km E of Scandicci (50609 inhabitants)
80 Km W of Fano (60888 inhabitants)
82 Km NW of Foligno (57155 inhabitants)
83 Km S of Faenza (58541 inhabitants)
89 Km E of Prato (191150 inhabitants)
94 Km SE of Imola (69797 inhabitants)
96 Km S of Ravenna (159116 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.4 2019-03-03
19:08:54
43.56 12.11 9 2019-03-03
19:15:51
Sala Sismica INGV-Roma 66141531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-03 19:08:54 ± 0.13
Latitude 43.56 ± 0.01
Longitude 12.11 ± 0.01
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 66141531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 856
Semi-minor axis of confidence ellipse (meter) 211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 309
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 195
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30577
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 66141531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-03 19:15:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRJA.HHZ. 2019-03-03T19:10:34.92 3.0 undecidable manual Pg 18.43 0
IV.SPS2.HHZ. 2019-03-03T19:10:14.75 3.0 negative manual Pn 4.21 0
GE.MATE.HHZ. 2019-03-03T19:10:10.61 3.0 negative manual Pg 12.17 0
CH.PLONS.HHZ. 2019-03-03T19:10:04.78 3.0 undecidable manual Sn 0.89 0
IV.SAMA.HHZ. 2019-03-03T19:10:02.24 3.0 undecidable manual Sg 7.68 0
CR.STON.BHZ. 2019-03-03T19:10:02.14 3.0 negative manual Pg 12.02 0
GU.ENR.HHZ. 2019-03-03T19:09:35.70 3.0 undecidable manual Pg 9.96 0
IV.FOSV.EHZ. 2019-03-03T19:09:26.89 3.0 undecidable manual S 4.19 0
IV.CADC.HNZ. 2019-03-03T19:09:24.70 3.0 undecidable manual S -0.05 0
IV.PIEI.HHZ. 2019-03-03T19:09:06.04 0.6 undecidable manual S 94 0.3058 50 -0.16 46
IV.ATTE.HHZ. 2019-03-03T19:09:05.48 3.0 undecidable manual Pg 2.27 0
IV.CAFI.HHZ. 2019-03-03T19:09:04.30 0.6 undecidable manual S 205 0.2527 107 -0.01 48
IV.ASQU.HHZ. 2019-03-03T19:09:02.02 3.0 undecidable manual S -0.99 0
IV.PIEI.HHZ. 2019-03-03T19:09:00.81 1.0 negative manual P 94 0.3058 50 -0.28 22
IV.CAFI.HHZ. 2019-03-03T19:09:00.01 0.3 positive manual P 205 0.2527 107 0.01 72
IV.BADI.EHZ. 2019-03-03T19:08:59.21 0.6 undecidable manual S 117 0.1061 126 0.04 49
IV.PARC.HHZ. 2019-03-03T19:08:59.78 0.3 undecidable manual S 45 0.1277 121 -0.06 73
IV.BADI.EHZ. 2019-03-03T19:08:57.26 0.6 negative manual P 117 0.1061 126 0.22 47
IV.PARC.HHZ. 2019-03-03T19:08:57.68 0.1 positive manual P 45 0.1277 121 0.26 93
IV.SSP9.EHZ. 2019-03-03T19:08:56.83 0.6 undecidable manual S 40 0.0198 166 -0.34 47
IV.SSP9.EHZ. 2019-03-03T19:08:55.87 0.1 undecidable manual P 40 0.0198 166 -0.01 100
IV.PE3.EHZ. 2019-03-03T19:08:55.09 3.0 undecidable manual P -3.41 0
IV.FIR.HHZ. 2019-03-03T19:08:53.82 3.0 undecidable manual P 0.13 0
IV.IMOL.HNZ. 2019-03-03T19:08:46.20 3.0 undecidable manual P 0.02 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSP9.EHE. ML:0 0.0004629506 0.1664 AML other m 2019-03-03T19:08:57.24
IV.SSP9.EHN. ML:0 0.0003307065 0.2944 AML other m 2019-03-03T19:08:57.16
IV.BADI.EHE. ML:0.4 3.1083075E-5 2.2656 AML other m 2019-03-03T19:09:04.03
IV.BADI.EHN. ML:0.3 2.7421245E-5 0.3328 AML other m 2019-03-03T19:09:02.68
IV.PARC.HHE. ML:0.4 2.371218E-5 0.9088 AML other m 2019-03-03T19:09:01.25
IV.PARC.HHN. ML:0.5 3.31935E-5 0.0768 AML other m 2019-03-03T19:09:00.47
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download