Earthquake with magnitude of ML 1.0 on date 22-04-2017 and time 08:42:00 (Italy) in region 8 km NW Accumoli (RI)

A magnitude ML 1.0 earthquake occured in region: 8 km NW Accumoli (RI), on

  • 22-04-2017 06:42:00 (UTC)
  • 22-04-2017 08:42:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7460, 13.1850 at 3 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
Accumoli RI 8 667 667
Norcia PG 9 4957 5624
Arquata del Tronto AP 10 1178 6802
Cittareale RI 14 482 7284
Cascia PG 14 3217 10501
Amatrice RI 15 2657 13158
Montegallo AP 16 523 13681
Castelsantangelo sul Nera MC 17 281 13962
Acquasanta Terme AP 19 2916 16878
Preci PG 19 724 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
49 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Chieti (51815 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
96 Km E 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 1.0 2017-04-22
06:42:00
42.746 13.185 3 2017-04-22
06:57:03
Sala Sismica INGV-Roma 44209271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-22 06:42:00 ± 0.1
Latitude 42.7460 ± 0.0027
Longitude 13.1850 ± 0.0049
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 44209271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 397
Semi-minor axis of confidence ellipse (meter) 156
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 15
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33185
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 44209271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-22 06:57:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2017-04-22T06:42:58.63 3.0 undecidable manual Sg 6.56 0
IV.VCEL.EHZ. 2017-04-22T06:42:55.08 3.0 undecidable manual Sn -7.01 0
IV.CSP1.EHZ. 2017-04-22T06:42:53.41 3.0 undecidable manual Sg 8.41 0
IV.T1256.HHZ. 2017-04-22T06:42:51.91 3.0 undecidable manual Sg 5.88 0
BA.PZUN.HHZ. 2017-04-22T06:42:48.21 3.0 positive manual Pn 3.85 0
IV.VBKN.HHZ. 2017-04-22T06:42:44.25 3.0 positive manual Pg 12.82 0
IV.TOLF.HHZ. 2017-04-22T06:42:35.19 3.0 undecidable manual Sg -3.6 0
IV.BRSN.EHZ. 2017-04-22T06:42:17.28 3.0 undecidable manual Sn -4.26 0
IV.VOBA.HNZ. 2017-04-22T06:42:16.75 3.0 undecidable manual Sn 2.21 0
IV.TERO.HHZ. 2017-04-22T06:42:12.88 0.3 undecidable manual S 112 36.8298 94 -0.08 70
IV.LAV9.HNZ. 2017-04-22T06:42:11.12 3.0 negative manual Pg 0.88 0
IV.RM33.HNZ. 2017-04-22T06:42:09.79 0.3 undecidable manual S 175 26.4513 96 0.26 69
IV.MC2.EHZ. 2017-04-22T06:42:07.12 0.3 undecidable manual S 1 18.3705 98 0.24 70
IV.T1216.EHZ. 2017-04-22T06:42:07.57 0.3 undecidable manual S 320 20.9679 97 -0.17 71
IV.TERO.HHZ. 2017-04-22T06:42:06.97 3.0 undecidable manual P 112 36.8298 94 -0.34 0
IV.T1245.HHZ. 2017-04-22T06:42:05.30 0.1 undecidable manual S 1 12.2766 102 0.4 91
IV.RM33.HNZ. 2017-04-22T06:42:05.32 0.3 undecidable manual P 175 26.4513 96 -0.15 70
IV.MC2.EHZ. 2017-04-22T06:42:04.02 0.1 undecidable manual P 1 18.3705 98 -0.03 97
IV.T1216.EHZ. 2017-04-22T06:42:04.69 0.3 undecidable manual P 320 20.9679 97 0.18 70
IV.T1218.EHZ. 2017-04-22T06:42:04.51 0.1 undecidable manual S 214 10.1787 104 0.28 94
IV.T1212.EHZ. 2017-04-22T06:42:04.56 0.1 undecidable manual S 273 11.4774 103 -0.07 98
IV.T1299.EHZ. 2017-04-22T06:42:03.82 3.0 positive manual Pn -4.1 0
IV.OSSC.HHZ. 2017-04-22T06:42:03.36 3.0 undecidable manual Sg -5.13 0
IV.T1212.EHZ. 2017-04-22T06:42:02.59 0.1 undecidable manual P 273 11.4774 103 -0.25 94
IV.T1245.HHZ. 2017-04-22T06:42:02.74 0.1 undecidable manual P 1 12.2766 102 -0.24 94
IV.T1218.EHZ. 2017-04-22T06:42:02.56 0.1 undecidable manual P 214 10.1787 104 -0.06 98
IV.T1214.EHZ. 2017-04-22T06:42:01.20 0.1 undecidable manual P 52 2.3976 136 -0.18 97
IV.T1214.EHZ. 2017-04-22T06:42:01.90 0.1 undecidable manual S 52 2.3976 136 -0.03 100
IV.APEC.HHZ. 2017-04-22T06:41:50.33 3.0 negative manual Pn -5.26 0
IV.ZONE.HHZ. 2017-04-22T06:41:48.22 3.0 positive manual Pg 0.85 0
IV.SARZ.HHZ. 2017-04-22T06:41:37.61 3.0 negative manual Pg 6.18 0
IV.EUCT.HNZ. 2017-04-22T06:41:37.97 3.0 positive manual Pn 0.61 0
GU.CARD.HHZ. 2017-04-22T06:41:32.62 3.0 negative manual P -2.81 0
GU.CANO.HHZ. 2017-04-22T06:41:25.41 3.0 undecidable manual P -0.91 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1214.EHN. ML:0.0 0.0004935704 1.488 AML other m 2017-04-22T06:42:02.67
IV.T1214.EHE. ML:0.0 0.0005192052000000001 1.088 AML other m 2017-04-22T06:42:02.86
IV.T1245.HHN. ML:1.0 0.0001605796 0.24 AML other m 2017-04-22T06:42:06.24
IV.T1245.HHE. ML:1.0 0.00014909319999999998 0.24 AML other m 2017-04-22T06:42:06.23
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
Waveforms Seismic signals in miniseed + resp format not available