Earthquake with magnitude of ML 0.5 on date 20-06-2017 and time 12:20:34 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 0.5 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 20-06-2017 10:20:34 (UTC)
  • 20-06-2017 12:20:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8460, 13.2190 at 2 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
Castelsantangelo sul Nera MC 8 281 281
Montegallo AP 9 523 804
Arquata del Tronto AP 10 1178 1982
Montemonaco AP 11 604 2586
Norcia PG 12 4957 7543
Ussita MC 13 444 7987
Visso MC 14 1107 9094
Montefortino FM 15 1178 10272
Preci PG 15 724 10996
Bolognola MC 17 142 11138
Accumoli RI 17 667 11805
Acquasanta Terme AP 18 2916 14721
Amandola FM 19 3629 18350

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
89 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 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 0.5 2017-06-20
10:20:34
42.8463 13.219 2 2017-06-20
10:26:58
Sala Sismica INGV-Roma 46943391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-06-20 10:20:34 ± 0.16
Latitude 42.8463 ± 0.0072
Longitude 13.2190 ± 0.0061
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 46943391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 736
Semi-minor axis of confidence ellipse (meter) 403
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.15558
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 46943391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-06-20 10:26:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1241.EHZ. 2017-06-20T10:20:41.04 0.1 undecidable manual S 86 17.2716 96 0.32 92
IV.CESI.HHZ. 2017-06-20T10:20:40.35 3.0 positive manual P 0.32 0
IV.CSP1.EHZ. 2017-06-20T10:20:39.49 3.0 positive manual P -0.13 0
IV.T1241.EHZ. 2017-06-20T10:20:38.01 0.1 undecidable manual P 86 17.2716 96 -0.16 95
IV.LNSS.HHZ. 2017-06-20T10:20:38.73 3.0 undecidable manual P -0.45 0
IV.T1256.HHZ. 2017-06-20T10:20:38.01 3.0 undecidable manual P -0.03 0
IV.T1216.EHZ. 2017-06-20T10:20:38.00 3.0 positive manual P 0.43 0
IV.FDMO.HHZ. 2017-06-20T10:20:38.91 3.0 undecidable manual P -0.06 0
IV.MC2.EHZ. 2017-06-20T10:20:37.60 0.1 undecidable manual S 341 7.5813 104 0.19 96
IV.NRCA.HHZ. 2017-06-20T10:20:37.98 0.1 undecidable manual S 261 8.6802 103 0.23 96
IV.MMO1.EHZ. 2017-06-20T10:20:36.62 0.1 undecidable manual P 56 10.5783 100 -0.21 95
IV.MC2.EHZ. 2017-06-20T10:20:36.16 0.1 positive manual P 341 7.5813 104 -0.1 98
IV.NRCA.HHZ. 2017-06-20T10:20:36.36 0.3 positive manual P 261 8.6802 103 -0.1 74
IV.T1245.HHZ. 2017-06-20T10:20:35.80 0.1 undecidable manual S 294 2.7972 125 -0.05 100
IV.T1245.HHZ. 2017-06-20T10:20:35.22 0.1 undecidable manual P 294 2.7972 125 -0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1256.HHN. ML:0.6 0.0000383 0.66 AML other m 2017-06-20T10:20:42.52
IV.FDMO.HHN. ML:0.3 0.000016899999999999997 0.56 AML other m 2017-06-20T10:20:43.45
IV.T1256.HHE. ML:0.5 0.0000321 0.54 AML other m 2017-06-20T10:20:43.50
IV.FDMO.HHE. ML:0.3 0.000016649999999999998 1.3 AML other m 2017-06-20T10:20:44.22
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