Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 16-08-2019 and time 04:23:40 (UTC) in region 4 km NE Cittareale (RI)

A magnitude ML 1.3 earthquake occured in region: 4 km NE Cittareale (RI), on

  • 16-08-2019 04:23:40 (UTC)
  • 16-08-2019 06:23:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6500, 13.1810 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 4 482 482
Accumoli RI 8 667 1149
Amatrice RI 9 2657 3806
Montereale AQ 15 2581 6387
Posta RI 16 694 7081
Cascia PG 16 3217 10298
Borbona RI 16 617 10915
Arquata del Tronto AP 17 1178 12093
Capitignano AQ 17 665 12758
Norcia PG 17 4957 17715
Campotosto AQ 19 542 18257
Monteleone di Spoleto PG 19 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
87 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 1.3 2019-08-16
04:23:40		 42.6502 13.1813 10 2019-08-16
04:31:49		 Sala Sismica INGV-Roma 71537911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-16 04:23:40 ± 0.07
Latitude 42.6502 ± 0.0045
Longitude 13.1813 ± 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 71537911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 489
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 158
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.11421
Epicentral distance of station farthest from the epicenter (degree) 0.68169
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 71537911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-16 04:31:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-08-16T04:24:05.46 3.0 undecidable manual S 355 75.6687 50 2.35 0
IV.CSP1.EHZ. 2019-08-16T04:23:56.44 0.6 undecidable manual S 2 49.0176 50 0.43 43
IV.MF5.EHZ. 2019-08-16T04:23:55.60 0.6 undecidable manual S 31 43.8228 50 0.99 35
IV.FDMO.HHZ. 2019-08-16T04:23:54.85 0.6 undecidable manual S 350 43.5231 50 0.3 45
IV.EL6.EHZ. 2019-08-16T04:23:52.78 1.0 negative manual P 355 75.6687 50 -0.67 19
IV.ARRO.EHZ. 2019-08-16T04:23:51.88 0.1 undecidable manual S 257 34.8429 50 -0.34 91
IV.MMO1.EHZ. 2019-08-16T04:23:50.78 0.1 undecidable manual S 23 30.0477 50 -0.17 95
IV.MC2.EHZ. 2019-08-16T04:23:50.89 0.6 undecidable manual S 1 28.9488 50 0.23 47
IV.CSP1.EHZ. 2019-08-16T04:23:49.25 0.1 undecidable manual P 2 49.0176 50 -0.1 93
IV.GAVE.EHZ. 2019-08-16T04:23:49.23 0.3 undecidable manual S 281 23.8539 113 -0.01 74
IV.FDMO.HHZ. 2019-08-16T04:23:48.39 1.0 undecidable manual P 350 43.5231 50 -0.11 23
IV.MF5.EHZ. 2019-08-16T04:23:48.76 1.0 positive manual P 31 43.8228 50 0.22 23
IV.NRCA.HHZ. 2019-08-16T04:23:48.05 0.6 undecidable manual S 345 21.0678 116 -0.31 47
IV.ARRO.EHZ. 2019-08-16T04:23:47.06 0.6 negative manual P 257 34.8429 50 -0.1 48
IV.MTRA.EHZ. 2019-08-16T04:23:47.74 0.6 undecidable manual S 56 21.1677 116 -0.64 42
IV.MC2.EHZ. 2019-08-16T04:23:46.18 0.1 undecidable manual P 1 28.9488 50 -0.08 97
IV.LNSS.HHZ. 2019-08-16T04:23:46.16 0.6 undecidable manual S 246 12.6762 129 0.3 47
IV.RM33.EHZ. 2019-08-16T04:23:46.62 0.6 undecidable manual S 170 15.873 122 -0.16 49
IV.MMO1.EHZ. 2019-08-16T04:23:46.22 1.0 positive manual P 23 30.0477 50 -0.21 23
IV.SMA1.EHZ. 2019-08-16T04:23:46.04 0.6 undecidable manual S 100 12.7761 128 0.15 49
IV.NRCA.HHZ. 2019-08-16T04:23:45.01 0.1 positive manual P 345 21.0678 116 0.08 98
IV.GAVE.EHZ. 2019-08-16T04:23:45.43 0.3 positive manual P 281 23.8539 113 -0.01 74
IV.MTRA.EHZ. 2019-08-16T04:23:44.74 0.1 undecidable manual P 56 21.1677 116 -0.21 95
IV.RM33.EHZ. 2019-08-16T04:23:44.04 0.1 positive manual P 170 15.873 122 0.02 100
IV.SMA1.EHZ. 2019-08-16T04:23:43.71 0.1 positive manual P 100 12.7761 128 0.2 97
IV.LNSS.HHZ. 2019-08-16T04:23:43.79 0.1 positive manual P 246 12.6762 129 0.3 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.3 0.0002255 1.32 AML other m 2019-08-16T04:23:46.94
IV.LNSS.HHE. ML:1.3 0.000199 0.62 AML other m 2019-08-16T04:23:46.31
IV.SMA1.EHE. ML:2.0 0.0010145 0.3 AML other m 2019-08-16T04:23:46.49
IV.SMA1.EHN. ML:1.7 0.000502 0.22 AML other m 2019-08-16T04:23:46.45
IV.RM33.EHN. ML:1.2 0.000155 1.08 AML other m 2019-08-16T04:23:47.34
IV.RM33.EHE. ML:1.1 0.0001052 1.16 AML other m 2019-08-16T04:23:47.04
IV.MTRA.EHN. ML:1.5 0.00020600000000000002 1.88 AML other m 2019-08-16T04:23:48.00
IV.NRCA.HHE. ML:1.6 0.0002545 0.14 AML other m 2019-08-16T04:23:48.37
IV.MTRA.EHE. ML:1.5 0.00020800000000000001 0.42 AML other m 2019-08-16T04:23:48.52
IV.NRCA.HHN. ML:1.4 0.0001585 0.68 AML other m 2019-08-16T04:23:49.62
IV.GAVE.EHN. ML:1.4 0.00014649999999999998 0.56 AML other m 2019-08-16T04:23:49.44
IV.GAVE.EHE. ML:1.2 0.00009705 0.52 AML other m 2019-08-16T04:23:49.82
IV.ARRO.EHN. ML:0.9 0.000034049999999999994 0.42 AML other m 2019-08-16T04:23:53.61
IV.ARRO.EHE. ML:0.9 0.000034049999999999994 1.06 AML other m 2019-08-16T04:23:55.33
IV.FDMO.HHE. ML:0.7 0.0000161 0.42 AML other m 2019-08-16T04:23:59.53
IV.FDMO.HHN. ML:0.7 0.0000165 0.48 AML other m 2019-08-16T04:23:59.53
IV.EL6.EHE. ML:1.4 0.00004075 0.42 AML other m 2019-08-16T04:24:02.54
IV.EL6.EHN. ML:1.3 0.00003105 0.6 AML other m 2019-08-16T04:24:19.38
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