Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 12-04-2019 and time 09:34:54 (Italy) in region 6 km NW Cittareale (RI)

A magnitude ML 0.8 earthquake occured in region: 6 km NW Cittareale (RI), on

  • 12-04-2019 07:34:54 (UTC)
  • 12-04-2019 09:34:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6640, 13.1290 at 13 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 6 482 482
Accumoli RI 10 667 1149
Cascia PG 11 3217 4366
Amatrice RI 14 2657 7023
Monteleone di Spoleto PG 15 599 7622
Norcia PG 15 4957 12579
Posta RI 16 694 13273
Poggiodomo PG 17 117 13390
Borbona RI 17 617 14007
Leonessa RI 18 2435 16442
Montereale AQ 18 2581 19023
Arquata del Tronto AP 18 1178 20201

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Terni (111501 inhabitants)
41 Km NW of L'Aquila (69753 inhabitants)
47 Km W of Teramo (54892 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
78 Km SE of Perugia (166134 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
92 Km W of Pescara (121014 inhabitants)
92 Km W of Chieti (51815 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 0.8 2019-04-12
07:34:54		 42.6643 13.1287 13 2019-04-12
07:45:49		 Sala Sismica INGV-Roma 67487651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-12 07:34:54 ± 0.1
Latitude 42.6643 ± 0.0054
Longitude 13.1287 ± 0.0073
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 67487651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 580
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 345
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27609
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 67487651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-12 07:45:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2019-04-12T07:35:37.20 3.0 undecidable manual S 0.56 0
IV.FOSV.EHZ. 2019-04-12T07:35:08.22 3.0 undecidable manual P -0.43 0
IV.MTRA.EHZ. 2019-04-12T07:35:03.06 0.3 undecidable manual S 65 24.1536 99 0.05 74
IV.GAVE.EHZ. 2019-04-12T07:35:01.63 0.6 undecidable manual S 279 19.3695 104 -0.13 49
IV.NRCA.HHE. 2019-04-12T07:35:01.65 0.6 undecidable manual S 356 18.7701 105 0.03 49
IV.RM33.EHZ. 2019-04-12T07:35:01.57 0.3 undecidable manual S 158 18.5703 106 0 75
IV.MC2.EHE. 2019-04-12T07:35:00.66 1.0 undecidable manual P 10 27.8499 97 0.86 21
IV.MMO1.EHZ. 2019-04-12T07:34:59.89 0.6 undecidable manual P 32 30.6471 96 -0.34 45
IV.LNSS.HHZ. 2019-04-12T07:34:59.45 0.3 undecidable manual S 227 9.879 131 -0.07 76
IV.MTRA.EHZ. 2019-04-12T07:34:59.40 0.3 undecidable manual P 65 24.1536 99 0.17 74
IV.RM33.EHZ. 2019-04-12T07:34:58.41 0.3 undecidable manual P 158 18.5703 106 0.01 76
IV.GAVE.EHZ. 2019-04-12T07:34:58.54 0.3 undecidable manual P 279 19.3695 104 0.03 75
IV.NRCA.HHE. 2019-04-12T07:34:58.48 0.3 undecidable manual P 356 18.7701 105 0.05 75
IV.LNSS.HHZ. 2019-04-12T07:34:57.38 0.1 undecidable manual P 227 9.879 131 0.17 100
IV.SMA1.EHE. 2019-04-12T07:34:57.78 0.3 undecidable manual P 102 17.2716 108 -0.43 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:0.6 0.000028250000000000002 0.86 AML other m 2019-04-12T07:35:02.05
IV.LNSS.HHN. ML:1.2 0.0001575 0.1 AML other m 2019-04-12T07:34:59.78
IV.GAVE.EHE. ML:0.8 0.00003905 0.2 AML other m 2019-04-12T07:35:02.10
IV.RM33.EHE. ML:0.5 0.00002637292 0.2176 AML other m 2019-04-12T07:35:01.78
IV.RM33.EHN. ML:0.7 0.000034545755 0.1856 AML other m 2019-04-12T07:35:01.97
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