Earthquake with magnitude of Md 0.8 on date 15-03-2019 and time 05:20:32 (UTC) in region 3 km SE Piancastagnaio (SI)

A magnitude Md 0.8 earthquake occured in region: 3 km SE Piancastagnaio (SI), on

  • 15-03-2019 05:20:32 (UTC)
  • 15-03-2019 06:20:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8280, 11.7120 at 6 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
Piancastagnaio SI 3 4230 4230
Castell'Azzara GR 6 1476 5706
Abbadia San Salvatore SI 7 6444 12150
Radicofani SI 9 1097 13247
Santa Fiora GR 10 2622 15869
Proceno VT 13 557 16426
San Casciano dei Bagni SI 14 1632 18058
Arcidosso GR 15 4285 22343
Acquapendente VT 16 5506 27849
Castel del Piano GR 16 4690 32539
Sorano GR 16 3428 35967
Seggiano GR 17 961 36928
Roccalbegna GR 17 1044 37972
Onano VT 17 995 38967
Semproniano GR 18 1059 40026

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km E of Grosseto (82087 inhabitants)
56 Km NW of Viterbo (67173 inhabitants)
63 Km SE of Siena (53903 inhabitants)
63 Km W of Perugia (166134 inhabitants)
73 Km S of Arezzo (99543 inhabitants)
82 Km N of Civitavecchia (52991 inhabitants)
82 Km W of Terni (111501 inhabitants)
82 Km W of Foligno (57155 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 0.8 2019-03-15
05:20:32
42.8278 11.7115 6 2019-03-15
05:33:19
Sala Sismica INGV-Roma 66547881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-15 05:20:32 ± 0.23
Latitude 42.8278 ± 0.0054
Longitude 11.7115 ± 0.0110
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66547881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 897
Semi-minor axis of confidence ellipse (meter) 150
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 238
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) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.10972
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 3
Type of magnitude Md
Reference to an origin 66547881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-15 05:33:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
TV.SF01.EHZ. 2019-03-15T05:20:37.32 0.3 undecidable manual S 262 12.1767 116 0.09 73
TV.SF13.HHN. 2019-03-15T05:20:36.03 0.3 undecidable manual S 262 7.5813 128 0.17 72
TV.SF14.HHZ. 2019-03-15T05:20:36.45 0.3 undecidable manual S 224 11.2776 117 -0.5 67
TV.SF01.EHZ. 2019-03-15T05:20:35.39 0.3 undecidable manual P 262 12.1767 116 0.14 72
TV.SF04.EHZ. 2019-03-15T05:20:35.03 0.1 undecidable manual S 282 4.1958 144 -0.02 100
TV.SF11.HHZ. 2019-03-15T05:20:35.00 0.1 undecidable manual S 330 5.1948 138 -0.26 95
IV.MCIV.CHZ. 2019-03-15T05:20:35.61 0.3 undecidable manual S 208 6.1938 133 0.12 73
IV.MCIV.CHZ. 2019-03-15T05:20:34.34 0.3 undecidable manual P 208 6.1938 133 0.09 74
TV.SF13.HHN. 2019-03-15T05:20:34.68 0.1 undecidable manual P 262 7.5813 128 0.22 95
TV.SF03.EHE. 2019-03-15T05:20:34.97 0.1 undecidable manual S 217 3.4965 149 0.06 99
TV.SF14.HHZ. 2019-03-15T05:20:34.76 0.1 undecidable manual P 224 11.2776 117 -0.33 93
TV.SF03.EHE. 2019-03-15T05:20:34.02 0.1 undecidable manual P 217 3.4965 149 0.11 98
TV.SF04.EHZ. 2019-03-15T05:20:34.09 0.1 undecidable manual P 282 4.1958 144 0.1 98
TV.SF11.HHZ. 2019-03-15T05:20:34.08 0.3 undecidable manual P 330 5.1948 138 -0.03 75
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