Earthquake with magnitude of ML 0.4 on date 16-05-2017 and time 16:10:08 (UTC) in region 6 km W Arquata del Tronto (AP)

A magnitude ML 0.4 earthquake occured in region: 6 km W Arquata del Tronto (AP), on

  • 16-05-2017 16:10:08 (UTC)
  • 16-05-2017 18:10:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7930, 13.2260 at 0 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
Arquata del Tronto AP 6 1178 1178
Montegallo AP 10 523 1701
Norcia PG 11 4957 6658
Accumoli RI 11 667 7325
Castelsantangelo sul Nera MC 13 281 7606
Montemonaco AP 15 604 8210
Acquasanta Terme AP 15 2916 11126
Preci PG 18 724 11850
Ussita MC 18 444 12294
Amatrice RI 19 2657 14951
Visso MC 19 1107 16058
Montefortino FM 19 1178 17236
Cascia PG 19 3217 20453

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
51 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
91 Km NW of Chieti (51815 inhabitants)
95 Km S of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km NE of Tivoli (56533 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 0.4 2017-05-16
16:10:08
42.793 13.2262 0 2017-05-16
16:23:33
Sala Sismica INGV-Roma 45393351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-05-16 16:10:08 ± 0.15
Latitude 42.7930 ± 0.0054
Longitude 13.2262 ± 0.0233
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 45393351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1960
Semi-minor axis of confidence ellipse (meter) 490
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 1960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 45393351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-05-16 16:23:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2017-05-16T16:10:34.72 3.0 undecidable manual S 0.1 0
IV.PP3.EHZ. 2017-05-16T16:10:20.16 3.0 negative manual P -0.46 0
IV.CSP1.EHZ. 2017-05-16T16:10:16.35 1.0 undecidable manual P 357 33.2445 91 0.84 19
IV.T1219.EHZ. 2017-05-16T16:10:15.97 0.1 undecidable manual P 328 34.2435 91 0.25 93
IV.FDMO.HHZ. 2017-05-16T16:10:14.74 0.1 undecidable manual P 337 29.2485 91 0.02 99
IV.MC2.EHZ. 2017-05-16T16:10:13.69 0.3 undecidable manual S 347 13.4754 91 0.16 74
IV.T1299.EHZ. 2017-05-16T16:10:12.44 0.1 undecidable manual P 165 18.1707 91 -0.06 100
IV.T1218.EHZ. 2017-05-16T16:10:12.19 0.1 undecidable manual P 214 16.3725 91 0.06 100
IV.T1245.HHZ. 2017-05-16T16:10:11.34 0.3 undecidable manual S 336 7.6812 92 -0.19 74
IV.MC2.EHZ. 2017-05-16T16:10:11.41 0.1 undecidable manual P 347 13.4754 91 -0.15 99
IV.T1245.HHZ. 2017-05-16T16:10:10.17 0.1 undecidable manual P 336 7.6812 92 -0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1241.EHE. ML:0.4 0.000025385415 1.088 AML other m 2017-05-16T16:10:13.73
IV.T1245.HHN. ML:0.0 0.0002639795 0.32 AML other m 2017-05-16T16:10:11.60
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