Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 26-04-2014 and time 02:36:38 (Italy) in region 3 km NE Cittareale (RI)

A magnitude ML 1.7 earthquake occured in region: 3 km NE Cittareale (RI), on

  • 26-04-2014 00:36:38 (UTC)
  • 26-04-2014 02:36:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6380, 13.1900 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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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 3 482 482
Accumoli RI 8 667 1149
Amatrice RI 8 2657 3806
Montereale AQ 13 2581 6387
Borbona RI 15 617 7004
Posta RI 15 694 7698
Capitignano AQ 16 665 8363
Cascia PG 17 3217 11580
Campotosto AQ 17 542 12122
Arquata del Tronto AP 17 1178 13300
Norcia PG 19 4957 18257
Monteleone di Spoleto PG 20 599 18856
Cagnano Amiterno AQ 20 1369 20225

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
86 Km W of Chieti (51815 inhabitants)
92 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
Bulletin
Rev1000 		ML 1.7 2014-04-26
00:36:38		 42.6383 13.1897 10 2015-09-21
09:36:10		 Bollettino Sismico Italiano INGV 17393091
Reviewed
Rev100 		ML 1.8 2014-04-26
00:36:38		 42.6428 13.1812 11 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 6298921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-26 00:36:38 ± 0.07
Latitude 42.6383 ± 0.0045
Longitude 13.1897 ± 0.0061
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17393091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 539
Semi-minor axis of confidence ellipse (meter) 150
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87774
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 6298921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-26 00:43:59

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 17393091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-05 18:56:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BLLA.EHZ. 2014-04-26T00:37:28.99 3.0 undecidable manual Sn 0.17 0
IV.CAFI.HHZ. 2014-04-26T00:37:02.81 3.0 undecidable manual P 2.21 0
IV.MA9.HHZ. 2014-04-26T00:36:56.66 3.0 undecidable manual P -1.35 0
IV.MGAB.HHZ. 2014-04-26T00:36:55.54 0.6 undecidable manual P 289 92.8404 50 1.04 32
IV.ARVD.HHZ. 2014-04-26T00:36:55.43 0.1 undecidable manual P 348 97.4247 50 0.22 84
IV.CERT.HHZ. 2014-04-26T00:36:54.01 3.0 undecidable manual P 1.53 0
IV.SSFR.HHZ. 2014-04-26T00:36:54.98 0.3 undecidable manual P 340 94.4388 50 0.23 63
IV.CESI.HHZ. 2014-04-26T00:36:53.80 0.6 undecidable manual S 330 46.8198 50 -0.02 48
IV.MURB.HHZ. 2014-04-26T00:36:53.96 0.3 undecidable manual P 322 87.8454 50 0.24 64
IV.FIAM.HHZ. 2014-04-26T00:36:52.10 0.6 undecidable manual S 188 41.5251 50 -0.31 46
IV.EL6.EHZ. 2014-04-26T00:36:52.23 0.3 undecidable manual P 355 76.9674 50 0.18 66
IV.FDMO.HHZ. 2014-04-26T00:36:52.80 0.6 undecidable manual S 349 44.9217 50 -0.52 43
IV.ATCC.EHZ. 2014-04-26T00:36:51.79 0.3 undecidable manual P 324 75.369 50 0 69
MN.AQU.HHZ. 2014-04-26T00:36:51.00 0.6 undecidable manual S 151 36.1416 50 0.03 49
IV.SNTG.HHZ. 2014-04-26T00:36:51.21 0.3 undecidable manual P 344 71.373 50 0.03 69
IV.TERO.HHZ. 2014-04-26T00:36:49.80 0.6 undecidable manual S 93 33.8439 50 -0.56 44
IV.OFFI.HHZ. 2014-04-26T00:36:49.11 0.1 undecidable manual P 51 52.1034 50 0.9 73
IV.MOMA.HHZ. 2014-04-26T00:36:48.53 0.3 undecidable manual P 290 53.8017 50 0.06 71
IV.CESX.HHZ. 2014-04-26T00:36:48.18 0.3 undecidable manual P 266 49.3173 50 0.39 67
IV.GUMA.HHZ. 2014-04-26T00:36:47.87 0.3 undecidable manual P 14 48.5181 50 0.21 69
IV.FAGN.HHZ. 2014-04-26T00:36:47.97 0.3 undecidable manual P 142 52.4031 50 -0.3 68
IV.CESI.HHZ. 2014-04-26T00:36:47.25 0.1 undecidable manual P 330 46.8198 50 -0.15 94
IV.CSP1.EHZ. 2014-04-26T00:36:47.85 0.1 undecidable manual P 1 50.3163 50 -0.09 95
IV.NRCA.HHZ. 2014-04-26T00:36:46.60 0.1 undecidable manual S 344 22.4553 114 -0.56 89
IV.FDMO.HHZ. 2014-04-26T00:36:46.88 0.1 undecidable manual P 349 44.9217 50 -0.23 93
IV.FIAM.HHZ. 2014-04-26T00:36:46.36 0.1 undecidable manual P 188 41.5251 50 -0.22 93
IV.CAMP.HHZ. 2014-04-26T00:36:46.50 0.6 undecidable manual S 122 21.2676 115 -0.25 48
MN.AQU.HHZ. 2014-04-26T00:36:45.73 0.1 undecidable manual P 151 36.1416 50 -0.02 98
IV.ARRO.EHZ. 2014-04-26T00:36:45.48 0.1 undecidable manual P 259 35.2425 50 -0.14 96
IV.TERO.HHZ. 2014-04-26T00:36:45.22 0.1 undecidable manual P 93 33.8439 50 -0.18 96
IV.SMA1.EHZ. 2014-04-26T00:36:44.20 0.3 undecidable manual S 94 11.877 130 0.19 74
IV.LNSS.HHZ. 2014-04-26T00:36:44.20 0.3 undecidable manual S 252 12.7761 128 -0.05 76
IV.NRCA.HHZ. 2014-04-26T00:36:43.35 0.1 positive manual P 344 22.4553 114 -0.2 97
IV.CAMP.HHZ. 2014-04-26T00:36:43.22 0.1 undecidable manual P 122 21.2676 115 -0.1 99
IV.SMA1.EHZ. 2014-04-26T00:36:42.15 0.1 positive manual P 94 11.877 130 0.42 94
IV.LNSS.HHZ. 2014-04-26T00:36:42.01 0.1 positive manual P 252 12.7761 128 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.6 0.001185 2.2 AML other m 2014-04-26T00:36:45.52
IV.SMA1.EHN. ML:1.9 0.0009319999999999999 0.52 AML other m 2014-04-26T00:36:45.63
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