Earthquake with magnitude of ML 1.1 on date 04-04-2017 and time 11:04:13 (Italy) in region 3 km SW Amatrice (RI)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Amatrice (RI), on

  • 04-04-2017 09:04:13 (UTC)
  • 04-04-2017 11:04:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6160, 13.2570 at 12 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
Amatrice RI 3 2657 2657
Cittareale RI 8 482 3139
Accumoli RI 9 667 3806
Montereale AQ 10 2581 6387
Capitignano AQ 11 665 7052
Campotosto AQ 11 542 7594
Borbona RI 15 617 8211
Posta RI 17 694 8905
Cagnano Amiterno AQ 18 1369 10274
Arquata del Tronto AP 18 1178 11452
Barete AQ 18 737 12189
Crognaleto TE 20 1297 13486
Pizzoli AQ 20 4326 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
80 Km W of Chieti (51815 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
89 Km SE of Perugia (166134 inhabitants)
97 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 1.1 2017-04-04
09:04:13
42.6155 13.2567 12 2017-04-04
09:14:13
Sala Sismica INGV-Roma 43363991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-04 09:04:13 ± 0.09
Latitude 42.6155 ± 0.0036
Longitude 13.2567 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 43363991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 408
Semi-minor axis of confidence ellipse (meter) 114
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 43363991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-04 09:14:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ISTR.HHZ. 2017-04-04T09:06:03.55 3.0 undecidable manual Sg 16.18 0
IV.NDIM.HNZ. 2017-04-04T09:05:52.10 3.0 undecidable manual Sg 15.41 0
IV.SERS.HHZ. 2017-04-04T09:05:52.85 3.0 undecidable manual Sn -1.07 0
IV.SPS2.HHZ. 2017-04-04T09:05:44.96 3.0 undecidable manual Sn -0.13 0
OX.SABO.HNZ. 2017-04-04T09:05:42.51 3.0 undecidable manual Sn -2.94 0
IV.LTRZ.EHZ. 2017-04-04T09:05:29.53 3.0 undecidable manual Sn 2.56 0
IV.LEOD.HNZ. 2017-04-04T09:05:18.78 3.0 positive manual Pg 11.01 0
IV.CSNT.HHZ. 2017-04-04T09:05:11.56 3.0 undecidable manual Sn 2.85 0
IV.CAPR.HNZ. 2017-04-04T09:05:10.32 3.0 undecidable manual Pn -0.5 0
IV.VOBA.HNZ. 2017-04-04T09:05:10.08 3.0 negative manual Pn 2.65 0
IV.NDIM.HHZ. 2017-04-04T09:04:56.46 3.0 positive manual Pn -0.46 0
IV.PIEI.HHZ. 2017-04-04T09:04:52.72 3.0 undecidable manual S -0.22 0
IV.IMOL.HNZ. 2017-04-04T09:04:50.81 3.0 positive manual Pg 4.72 0
IV.T1211.EHZ. 2017-04-04T09:04:24.73 0.1 undecidable manual S 255 34.0437 93 -0.12 95
IV.TERO.HHZ. 2017-04-04T09:04:23.03 0.1 undecidable manual S 88 28.3494 93 -0.3 91
IV.NRCA.HHZ. 2017-04-04T09:04:22.71 0.1 undecidable manual S 334 26.8509 94 -0.21 95
IV.T1212.EHZ. 2017-04-04T09:04:21.54 0.1 undecidable manual S 311 22.9548 95 -0.35 93
IV.T1214.EHZ. 2017-04-04T09:04:20.27 0.1 undecidable manual S 346 16.4724 103 0.09 97
IV.T1211.EHZ. 2017-04-04T09:04:20.00 0.1 undecidable manual P 255 34.0437 93 0.03 95
IV.TERO.HHZ. 2017-04-04T09:04:19.09 0.1 undecidable manual P 88 28.3494 93 0 97
IV.T1241.EHZ. 2017-04-04T09:04:19.51 3.0 negative manual P 2 0
IV.RM33.EHZ. 2017-04-04T09:04:19.06 0.1 undecidable manual S 196 12.2766 117 -0.08 98
IV.NRCA.HHZ. 2017-04-04T09:04:18.91 0.1 undecidable manual P 334 26.8509 94 0.05 96
IV.T1212.EHZ. 2017-04-04T09:04:18.30 0.1 undecidable manual P 311 22.9548 95 0.04 97
IV.T1214.EHZ. 2017-04-04T09:04:17.53 0.1 undecidable manual P 346 16.4724 103 0.26 94
IV.T1299.EHZ. 2017-04-04T09:04:17.51 0.1 undecidable manual S 45 2.8971 162 0 100
IV.RM33.EHZ. 2017-04-04T09:04:16.90 0.1 positive manual P 196 12.2766 117 0.23 96
IV.T1299.EHZ. 2017-04-04T09:04:15.96 0.1 undecidable manual P 45 2.8971 162 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.4 0.00011945 1.84 AML other m 2017-04-04T09:04:22.98
IV.NRCA.HHN. ML:1.1 0.000059300000000000005 0.1 AML other m 2017-04-04T09:04:23.10
IV.RM33.EHN. ML:1.0 0.000111 0.7 AML other m 2017-04-04T09:04:19.52
IV.RM33.EHE. ML:1.2 0.0001575 0.66 AML other m 2017-04-04T09:04:19.58
IV.T1299.EHN. ML:0.8 0.00009800000000000001 0.08 AML other m 2017-04-04T09:04:17.63
IV.T1299.EHE. ML:0.9 0.0001263 1.08 AML other m 2017-04-04T09:04:18.62
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download