Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 15-10-2019 and time 00:41:20 (UTC) in region 4 km NE Cittareale (RI)

A magnitude ML 0.8 earthquake occured in region: 4 km NE Cittareale (RI), on

  • 15-10-2019 00:41:20 (UTC)
  • 15-10-2019 02:41:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6530, 13.1800 at 11 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 4 482 482
Accumoli RI 7 667 1149
Amatrice RI 9 2657 3806
Montereale AQ 15 2581 6387
Cascia PG 16 3217 9604
Posta RI 16 694 10298
Borbona RI 16 617 10915
Arquata del Tronto AP 17 1178 12093
Norcia PG 17 4957 17050
Capitignano AQ 18 665 17715
Monteleone di Spoleto PG 19 599 18314
Campotosto AQ 19 542 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)
82 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
Bulletin
Rev1000 		ML 0.8 2019-10-15
00:41:20		 42.6528 13.1802 11 2020-02-28
16:41:57		 Bollettino Sismico Italiano INGV 73371111
Reviewed
Rev100 		ML 0.9 2019-10-15
00:41:20		 42.6498 13.1827 13 2019-10-15
00:53:51		 Sala Sismica INGV-Roma 73261141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-15 00:41:20 ± 0.06
Latitude 42.6528 ± 0.0036
Longitude 13.1802 ± 0.0049
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73371111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 209
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.40559
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 73371111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-21 09:36:54

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 73261141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-15 00:53:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2019-10-15T00:41:31.04 0.3 undecidable manual S 1 28.6491 91 0.42 67
IV.MMO1.EHZ. 2019-10-15T00:41:31.01 0.3 undecidable manual S 24 29.8479 91 0.08 72
IV.MF5.EHZ. 2019-10-15T00:41:29.02 0.3 undecidable manual P 31 43.5231 91 0.38 66
IV.CAMP.HHN. 2019-10-15T00:41:28.85 0.6 undecidable manual S 125 22.755 92 -0.19 47
IV.FDMO.HHZ. 2019-10-15T00:41:28.39 0.3 undecidable manual P 350 43.2234 91 -0.19 68
IV.MTRA.HNZ. 2019-10-15T00:41:28.21 0.3 undecidable manual S 57 21.0678 92 -0.38 68
IV.NRCA.HHZ. 2019-10-15T00:41:28.25 0.3 undecidable manual S 345 20.7681 92 -0.25 70
IV.CESI.HNN. 2019-10-15T00:41:28.70 0.1 undecidable manual P 330 45.0216 91 -0.16 91
IV.RM33.EHZ. 2019-10-15T00:41:27.12 0.3 undecidable manual S 170 16.1727 96 -0.17 73
IV.LNSS.HHZ. 2019-10-15T00:41:26.49 0.3 undecidable manual S 244 12.6762 109 0.12 72
IV.SMA1.EHZ. 2019-10-15T00:41:26.49 0.1 undecidable manual S 101 12.876 108 0.06 98
IV.MC2.EHZ. 2019-10-15T00:41:26.27 0.1 undecidable manual P 1 28.6491 91 -0.07 95
IV.MMO1.EHZ. 2019-10-15T00:41:26.55 0.3 undecidable manual P 24 29.8479 91 0.03 72
IV.MTRA.HNZ. 2019-10-15T00:41:25.38 0.6 undecidable manual P 57 21.0678 92 0.21 47
IV.NRCA.HHZ. 2019-10-15T00:41:25.05 0.1 undecidable manual P 345 20.7681 92 -0.07 97
IV.CAMP.HHN. 2019-10-15T00:41:25.36 0.1 undecidable manual P 125 22.755 92 -0.07 97
IV.T1299.HNZ. 2019-10-15T00:41:25.35 0.6 undecidable manual S 104 8.5803 129 -0.07 49
IV.LNSS.HHZ. 2019-10-15T00:41:24.04 0.3 undecidable manual P 244 12.6762 109 0.15 72
IV.SMA1.EHZ. 2019-10-15T00:41:24.14 0.1 undecidable manual P 101 12.876 108 0.22 95
IV.RM33.EHZ. 2019-10-15T00:41:24.38 0.1 undecidable manual P 170 16.1727 96 -0.04 99
IV.T1299.HNZ. 2019-10-15T00:41:23.36 0.1 undecidable manual P 104 8.5803 129 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:0.7 0.00004971429 0.14 AML other m 2019-10-15T00:41:26.60
IV.LNSS.HHN. ML:0.5 0.00003084921 0.2 AML other m 2019-10-15T00:41:26.79
IV.SMA1.EHE. ML:0.8 0.000057501264999999995 1.7 AML other m 2019-10-15T00:41:26.06
IV.SMA1.EHN. ML:0.7 0.000050230995 0.28 AML other m 2019-10-15T00:41:26.99
IV.NRCA.HNN. ML:1.3 0.00012626589999999998 0.73 AML other m 2019-10-15T00:41:27.48
IV.LNSS.HNE. ML:1.0 0.00009883733499999999 0.53 AML other m 2019-10-15T00:41:27.97
IV.NRCA.HNE. ML:1.1 0.00007807554 0.77 AML other m 2019-10-15T00:41:28.23
IV.NRCA.HHE. ML:0.7 0.00003384656 0.12 AML other m 2019-10-15T00:41:28.52
IV.LNSS.HNN. ML:1.2 0.00017418687500000003 1.16 AML other m 2019-10-15T00:41:28.97
IV.NRCA.HHN. ML:0.6 0.00002678739 0.08 AML other m 2019-10-15T00:41:29.35
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