Earthquake with magnitude of ML 1.3 on date 03-03-2017 and time 11:50:26 (Italy) in region 8 km SW Spoleto (PG)

A magnitude ML 1.3 earthquake occured in region: 8 km SW Spoleto (PG), on

  • 03-03-2017 10:50:26 (UTC)
  • 03-03-2017 11:50:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6730, 12.6810 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Spoleto PG 8 38218 38218
Ferentillo TR 11 1913 40131
Montefranco TR 11 1276 41407
Acquasparta TR 11 4778 46185
Arrone TR 12 2763 48948
Terni TR 13 111501 160449
San Gemini TR 13 5018 165467
Scheggino PG 13 461 165928
Sant'Anatolia di Narco PG 14 564 166492
Montecastrilli TR 16 5022 171514
Polino TR 17 233 171747
Castel Ritaldi PG 17 3278 175025
Massa Martana PG 17 3770 178795
Campello sul Clitunno PG 18 2442 181237
Vallo di Nera PG 18 364 181601
Labro RI 19 374 181975
Stroncone TR 19 4917 186892
Giano dell'Umbria PG 20 3846 190738

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km N of Terni (111501 inhabitants)
32 Km S of Foligno (57155 inhabitants)
54 Km SE of Perugia (166134 inhabitants)
55 Km NE of Viterbo (67173 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
75 Km N of Guidonia Montecelio (88673 inhabitants)
79 Km N of Tivoli (56533 inhabitants)
84 Km W of Teramo (54892 inhabitants)
88 Km N of Roma (2864731 inhabitants)
97 Km NE of Civitavecchia (52991 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 1.3 2017-03-03
10:50:26
42.6728 12.6812 9 2017-03-03
11:01:19
Sala Sismica INGV-Roma 41899091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-03 10:50:26 ± 0.16
Latitude 42.6728 ± 0.0063
Longitude 12.6812 ± 0.0098
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 41899091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 913
Semi-minor axis of confidence ellipse (meter) 345
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42538
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 41899091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-03 11:01:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EPOZ.HHZ. 2017-03-03T10:52:27.72 3.0 undecidable manual Sn -9.99 0
SL.KOGS.BHZ. 2017-03-03T10:52:22.32 3.0 undecidable manual Sn -5.66 0
CR.STON.BHZ. 2017-03-03T10:52:07.44 3.0 undecidable manual Sn 1.73 0
IV.EUCT.HNZ. 2017-03-03T10:52:03.75 3.0 undecidable manual Sg 3.38 0
OX.AGOR.HHZ. 2017-03-03T10:51:51.03 3.0 undecidable manual Sn -9.99 0
IV.EPOZ.HHZ. 2017-03-03T10:51:44.64 3.0 negative manual Pg 4.54 0
IV.MFNL.SHZ. 2017-03-03T10:51:43.30 3.0 negative manual Pg 10.45 0
IV.HAGA.HHZ. 2017-03-03T10:51:35.63 3.0 undecidable manual Pn -9.27 0
IV.ISTR.HHZ. 2017-03-03T10:51:28.93 3.0 negative manual Pg 2.68 0
CR.ZAG.BHZ. 2017-03-03T10:51:23.48 3.0 positive manual Pn -1.45 0
IV.NOCI.HHZ. 2017-03-03T10:51:23.92 3.0 positive manual Pg 3.43 0
IV.ZCCA.HHZ. 2017-03-03T10:51:21.83 3.0 undecidable manual Sg -2.35 0
IV.NDIM.HHZ. 2017-03-03T10:51:18.65 3.0 undecidable manual Sn -9.99 0
IV.INTR.HNZ. 2017-03-03T10:51:01.91 3.0 undecidable manual Sn 2.01 0
IV.VVLD.HHZ. 2017-03-03T10:50:58.40 3.0 undecidable manual Sn 1.01 0
IV.NDIM.HNZ. 2017-03-03T10:50:53.47 3.0 positive manual Pn -9.99 0
IV.T1220.HNZ. 2017-03-03T10:50:49.69 3.0 undecidable manual Sn 0.16 0
IV.CESX.HHZ. 2017-03-03T10:50:45.42 3.0 undecidable manual Sg 14.46 0
IV.LNSS.HHZ. 2017-03-03T10:50:37.48 0.3 undecidable manual S 105 30.3474 106 0.44 70
IV.T1214.EHZ. 2017-03-03T10:50:35.03 0.3 undecidable manual P 77 44.0226 50 0.46 68
IV.RM33.EHZ. 2017-03-03T10:50:34.84 0.1 undecidable manual P 112 47.2194 50 -0.22 94
IV.T1211.EHZ. 2017-03-03T10:50:34.08 0.3 undecidable manual S 137 21.0678 113 0.08 76
IV.T1215.EHZ. 2017-03-03T10:50:33.84 0.3 undecidable manual S 47 20.9679 113 -0.12 76
IV.MOMA.HHZ. 2017-03-03T10:50:32.92 0.3 undecidable manual S 328 17.1717 117 0.16 76
IV.VIVA.HHZ. 2017-03-03T10:50:32.96 3.0 negative manual P -5.81 0
IV.LNSS.HHZ. 2017-03-03T10:50:31.99 0.3 undecidable manual P 105 30.3474 106 -0.42 70
IV.T1211.EHZ. 2017-03-03T10:50:30.54 0.3 undecidable manual P 137 21.0678 113 -0.11 76
IV.T1215.EHZ. 2017-03-03T10:50:30.46 0.1 undecidable manual P 47 20.9679 113 -0.17 100
IV.ARRO.EHZ. 2017-03-03T10:50:29.16 0.3 undecidable manual P 146 12.4764 125 0.02 78
IV.MOMA.HHZ. 2017-03-03T10:50:29.97 0.3 undecidable manual P 328 17.1717 117 0.03 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.2 0.0001735 1.66 AML other m 2017-03-03T10:50:33.13
IV.ARRO.EHE. ML:1.2 0.000177 0.7 AML other m 2017-03-03T10:50:33.50
IV.LNSS.HHN. ML:1.1 0.000054 0.52 AML other m 2017-03-03T10:50:39.03
IV.LNSS.HHE. ML:1.1 0.0000645 1.12 AML other m 2017-03-03T10:50:40.19
IV.MOMA.HHN. ML:1.2 0.0001485 0.76 AML other m 2017-03-03T10:50:33.42
IV.MOMA.HHE. ML:1.1 0.000111 1.54 AML other m 2017-03-03T10:50:34.92
IV.RM33.EHN. ML:1.4 0.00007845 0.34 AML other m 2017-03-03T10:50:37.30
IV.RM33.EHE. ML:1.3 0.00005585 0.62 AML other m 2017-03-03T10:50:37.30
IV.T1299.EHN. ML:1.6 0.0000954 0.34 AML other m 2017-03-03T10:50:35.45
IV.T1299.EHE. ML:1.5 0.0000864 0.28 AML other m 2017-03-03T10:50:35.50
IV.TERO.HHE. ML:1.4 0.000034500000000000005 0.7 AML other m 2017-03-03T10:50:40.49
IV.TERO.HHN. ML:1.4 0.0000356 0.28 AML other m 2017-03-03T10:50:40.98
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