Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 29-08-2019 and time 22:49:51 (Italy) in region 5 km N Cittareale (RI)

A magnitude ML 1.1 earthquake occured in region: 5 km N Cittareale (RI), on

  • 29-08-2019 20:49:51 (UTC)
  • 29-08-2019 22:49:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6590, 13.1740 at 10 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.

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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 5 482 482
Accumoli RI 7 667 1149
Amatrice RI 10 2657 3806
Cascia PG 15 3217 7023
Montereale AQ 16 2581 9604
Posta RI 16 694 10298
Arquata del Tronto AP 16 1178 11476
Norcia PG 16 4957 16433
Borbona RI 17 617 17050
Monteleone di Spoleto PG 18 599 17649
Capitignano AQ 19 665 18314
Campotosto AQ 20 542 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
44 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
88 Km W of Pescara (121014 inhabitants)
88 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
Reviewed
Rev100 		ML 1.1 2019-08-29
20:49:51		 42.659 13.174 10 2019-08-29
21:01:35		 Sala Sismica INGV-Roma 71922181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-29 20:49:51 ± 0.09
Latitude 42.6590 ± 0.0045
Longitude 13.1740 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71922181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 408
Semi-minor axis of confidence ellipse (meter) 347
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
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) 71
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 0.38941
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 71922181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-29 21:01:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2019-08-29T20:50:00.55 1.0 undecidable manual P 32 43.2234 50 0.35 22
IV.GAVE.EHZ. 2019-08-29T20:50:00.64 0.6 undecidable manual S 279 23.1546 113 0 49
IV.FDMO.HHZ. 2019-08-29T20:50:00.07 0.1 undecidable manual P 350 42.4242 50 0 96
IV.NRCA.HHZ. 2019-08-29T20:49:59.56 0.6 undecidable manual S 346 19.9689 116 -0.08 49
IV.RM33.EHZ. 2019-08-29T20:49:58.41 0.6 undecidable manual S 169 16.9719 120 -0.32 47
IV.SMA1.EHZ. 2019-08-29T20:49:57.75 0.1 undecidable manual S 103 13.5753 126 0.03 100
IV.GAVE.EHZ. 2019-08-29T20:49:57.07 0.1 undecidable manual P 279 23.1546 113 0.11 97
IV.LNSS.HHZ. 2019-08-29T20:49:57.17 0.1 undecidable manual S 240 12.5763 128 -0.28 95
IV.MMO1.EHZ. 2019-08-29T20:49:57.86 0.1 undecidable manual P 25 29.4483 50 -0.2 94
IV.MTRA.EHZ. 2019-08-29T20:49:56.45 0.1 undecidable manual P 59 21.1677 115 -0.14 96
IV.NRCA.HHZ. 2019-08-29T20:49:56.40 0.1 undecidable manual P 346 19.9689 116 0.01 99
IV.SMA1.EHZ. 2019-08-29T20:49:55.50 0.1 undecidable manual P 103 13.5753 126 0.22 96
IV.LNSS.HHZ. 2019-08-29T20:49:55.53 0.1 undecidable manual P 240 12.5763 128 0.41 92
IV.RM33.EHZ. 2019-08-29T20:49:55.87 0.1 undecidable manual P 169 16.9719 120 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.3 0.00020850000000000003 0.36 AML other m 2019-08-29T20:49:58.19
IV.LNSS.HHE. ML:1.4 0.0002485 0.16 AML other m 2019-08-29T20:49:58.03
IV.SMA1.EHE. ML:1.0 0.00010400000000000001 0.22 AML other m 2019-08-29T20:49:58.03
IV.SMA1.EHN. ML:1.4 0.0002445 0.34 AML other m 2019-08-29T20:49:58.32
IV.RM33.EHE. ML:0.9 0.0000724 0.54 AML other m 2019-08-29T20:49:58.72
IV.RM33.EHN. ML:0.9 0.00007585 1.08 AML other m 2019-08-29T20:49:59.82
IV.NRCA.HHN. ML:0.9 0.000057999999999999994 0.54 AML other m 2019-08-29T20:49:59.95
IV.NRCA.HHE. ML:1.1 0.00009154999999999999 0.46 AML other m 2019-08-29T20:50:00.68
IV.GAVE.EHN. ML:0.9 0.0000504 1.44 AML other m 2019-08-29T20:50:00.97
IV.GAVE.EHE. ML:1.1 0.0000797 1.24 AML other m 2019-08-29T20:50:01.93
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