Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 04-03-2017 and time 04:34:37 (Italy) in region 3 km S Castelsantangelo sul Nera (MC)

A magnitude ML 1.3 earthquake occured in region: 3 km S Castelsantangelo sul Nera (MC), on

  • 04-03-2017 03:34:37 (UTC)
  • 04-03-2017 04:34:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8710, 13.1620 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castelsantangelo sul Nera MC 3 281 281
Ussita MC 9 444 725
Visso MC 9 1107 1832
Preci PG 10 724 2556
Norcia PG 10 4957 7513
Montemonaco AP 14 604 8117
Montegallo AP 14 523 8640
Bolognola MC 15 142 8782
Arquata del Tronto AP 16 1178 9960
Montefortino FM 17 1178 11138
Acquacanina MC 18 121 11259
Fiastra MC 19 559 11818
Monte Cavallo MC 19 145 11963
Sellano PG 19 1079 13042
Fiordimonte MC 20 202 13244

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
50 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
97 Km W of Pescara (121014 inhabitants)
100 Km NE of Viterbo (67173 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 2017-03-04
03:34:37		 42.8707 13.1618 6 2017-03-04
03:39:14		 Sala Sismica INGV-Roma 41934401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-04 03:34:37 ± 0.11
Latitude 42.8707 ± 0.0036
Longitude 13.1618 ± 0.0037
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 41934401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 67
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 169
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.21764
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 41934401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-04 03:39:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1241.EHZ. 2017-03-04T03:34:45.00 0.3 undecidable manual S 94 21.9669 106 -0.11 74
IV.T1212.EHZ. 2017-03-04T03:34:43.33 0.6 undecidable manual S 216 16.2726 111 0.09 50
IV.T1214.EHZ. 2017-03-04T03:34:42.32 0.6 undecidable manual S 163 12.876 116 0.17 50
IV.MMO1.EHZ. 2017-03-04T03:34:42.40 0.6 undecidable manual S 77 13.7751 114 -0.03 51
IV.T1216.EHZ. 2017-03-04T03:34:41.76 0.6 undecidable manual S 281 11.7771 118 -0.06 51
IV.T1241.EHZ. 2017-03-04T03:34:41.68 1.0 undecidable manual P 94 21.9669 106 -0.08 25
IV.MMO1.EHZ. 2017-03-04T03:34:40.21 0.3 undecidable manual P 77 13.7751 114 -0.01 77
IV.T1214.EHZ. 2017-03-04T03:34:40.24 1.0 negative manual P 163 12.876 116 0.18 25
IV.T1212.EHZ. 2017-03-04T03:34:40.77 0.6 positive manual P 216 16.2726 111 0.09 50
IV.MC2.EHZ. 2017-03-04T03:34:40.28 0.6 undecidable manual S 26 4.995 141 0.32 49
IV.T1216.EHZ. 2017-03-04T03:34:39.71 0.1 undecidable manual P 281 11.7771 118 -0.16 100
IV.MC2.EHZ. 2017-03-04T03:34:39.01 0.6 undecidable manual P 26 4.995 141 0.22 50
IV.T1245.HHZ. 2017-03-04T03:34:39.31 0.3 undecidable manual S 126 2.5974 157 -0.21 75
IV.T1219.EHZ. 2017-03-04T03:34:39.36 3.0 undecidable manual P 24.1536 -2.83 0
IV.T1245.HHZ. 2017-03-04T03:34:38.46 1.0 undecidable manual P 126 2.5974 157 -0.08 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.4 0.0000791 1.72 AML other m 2017-03-04T03:34:54.02
IV.RM33.EHN. ML:1.2 0.000059499999999999996 0.18 AML other m 2017-03-04T03:34:55.23
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