Earthquake with magnitude of ML 0.4 on date 20-07-2015 and time 01:17:02 (Italy) in region E Cittareale (RI)

A magnitude ML 0.4 earthquake occured in region: E Cittareale (RI), on

  • 19-07-2015 23:17:02 (UTC)
  • 20-07-2015 01:17:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.16 at 14 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
Cittareale RI 0 482 482
Amatrice RI 11 2657 3139
Accumoli RI 11 667 3806
Posta RI 12 694 4500
Borbona RI 12 617 5117
Montereale AQ 12 2581 7698
Capitignano AQ 16 665 8363
Cascia PG 17 3217 11580
Leonessa RI 17 2435 14015
Monteleone di Spoleto PG 18 599 14614
Cagnano Amiterno AQ 18 1369 15983
Campotosto AQ 18 542 16525

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
43 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
88 Km W of Chieti (51815 inhabitants)
88 Km W of Pescara (121014 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
98 Km NE of Roma (2864731 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 2015-07-19
23:17:02
42.62 13.16 14 2015-07-19
23:28:21
Sala Sismica INGV-Roma 20389231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-07-19 23:17:02 ± 0.28
Latitude 42.62 ± 0.01
Longitude 13.16 ± 0.01
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 20389231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1409
Semi-minor axis of confidence ellipse (meter) 540
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 173
Circular confidence region, given by single value of horizontal uncertainty (meter) 1410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 8
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
Epicentral distance of station farthest from the epicenter (degree) 3.75017
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.4
Num. used stations 3
Type of magnitude ML
Reference to an origin 20389231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-07-19 23:28:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2015-07-19T23:18:40.99 3.0 undecidable manual Sg 3.7052 4.24 0
IV.SPS2.HHZ. 2015-07-19T23:18:23.99 3.0 undecidable manual Sn 3.7502 -9.99 0
IV.MFNL.SHZ. 2015-07-19T23:18:06.88 3.0 positive manual Pg 8.76 0
IV.SPS2.HHZ. 2015-07-19T23:17:53.22 3.0 undecidable manual Pg 3.7502 1.61 0
CR.STON.BHZ. 2015-07-19T23:17:51.68 3.0 positive manual Pg 1.91 0
IV.CAR1.HHZ. 2015-07-19T23:17:49.12 3.0 undecidable manual Pn 3.7052 -1.97 0
IV.SSFR.HNZ. 2015-07-19T23:17:41.99 3.0 undecidable manual Sg 0.96 0
IV.ARVD.HHZ. 2015-07-19T23:17:38.99 3.0 undecidable manual S -3.99 0
IV.T0702.EHZ. 2015-07-19T23:17:37.65 3.0 positive manual Pn -7.82 0
IV.TERO.HHZ. 2015-07-19T23:17:14.04 0.6 undecidable manual S 89 0.3247 97 -0.21 46
IV.RM33.EHZ. 2015-07-19T23:17:08.34 0.6 undecidable manual S 161 0.116 125 0 51
IV.SMA1.EHZ. 2015-07-19T23:17:08.67 0.6 undecidable manual S 84 0.1277 121 0.03 50
IV.TERO.HHZ. 2015-07-19T23:17:08.99 0.1 undecidable manual P 89 0.3247 97 -0.13 94
IV.LNSS.HHZ. 2015-07-19T23:17:07.48 0.6 undecidable manual S 260 0.0908 134 -0.3 48
IV.SMA1.EHZ. 2015-07-19T23:17:06.17 0.1 positive manual P 84 0.1277 121 0.28 96
IV.LNSS.HHZ. 2015-07-19T23:17:05.44 0.1 positive manual P 260 0.0908 134 0.05 100
IV.RM33.EHZ. 2015-07-19T23:17:05.98 1.0 undecidable manual P 161 0.116 125 0.26 24
IV.VIVA.HHZ. 2015-07-19T23:16:58.30 3.0 undecidable manual P -0.95 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HHE. ML:3 3.825E-5 0.08 AML other m 2015-07-19T23:19:00.57
IV.CAR1.HHN. ML:3.2 7.24E-5 0.06 AML other m 2015-07-19T23:19:06.93
IV.LNSS.HHN. ML:1.3 0.0002205 0.12 AML other m 2015-07-19T23:17:07.70
IV.LNSS.HHE. ML:1.1 0.0001165 0.24 AML other m 2015-07-19T23:17:07.74
IV.RM33.EHN. ML:0.4 1.81E-5 0.28 AML other m 2015-07-19T23:17:08.59
IV.RM33.EHE. ML:0.4 1.785E-5 1.54 AML other m 2015-07-19T23:17:08.55
IV.SPS2.HHE. ML:2.1 4.15E-6 0.62 AML other m 2015-07-19T23:18:52.03
IV.SPS2.HHN. ML:2.1 5.845E-6 0.4 AML other m 2015-07-19T23:19:11.21
IV.TERO.HHE. ML:0.1 3.92E-6 1.54 AML other m 2015-07-19T23:17:14.41
IV.TERO.HHN. ML:0.1 4.26E-6 1.26 AML other m 2015-07-19T23:17:15.28
IV.VIVA.HHN. ML:2.9 0.0008325 0.06 AML other m 2015-07-19T23:17:05.87
IV.VIVA.HHE. ML:3.2 0.001625 0.08 AML other m 2015-07-19T23:17:05.92
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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