Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 24-11-2018 and time 06:16:40 (Italy) in region 7 km NW Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 24-11-2018 05:16:40 (UTC)
  • 24-11-2018 06:16:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7400, 13.1950 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
Accumoli RI 7 667 667
Arquata del Tronto AP 9 1178 1845
Norcia PG 10 4957 6802
Cittareale RI 14 482 7284
Amatrice RI 15 2657 9941
Cascia PG 15 3217 13158
Montegallo AP 16 523 13681
Castelsantangelo sul Nera MC 18 281 13962
Acquasanta Terme AP 18 2916 16878
Preci PG 20 724 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
49 Km E of Terni (111501 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km W of Chieti (51815 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
96 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 1.4 2018-11-24
05:16:40		 42.7402 13.1947 10 2018-11-24
05:22:52		 Sala Sismica INGV-Roma 63321641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-24 05:16:40 ± 0.08
Latitude 42.7402 ± 0.0027
Longitude 13.1947 ± 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 63321641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 398
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
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) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.11062
Epicentral distance of station farthest from the epicenter (degree) 0.32286
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 63321641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-24 05:22:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2018-11-24T05:16:48.63 0.3 undecidable manual S 359 18.9699 119 0.44 68
IV.MMO1.EHZ. 2018-11-24T05:16:48.50 0.1 undecidable manual S 31 20.6682 117 -0.2 96
IV.LNSS.HHZ. 2018-11-24T05:16:48.46 0.6 undecidable manual S 220 19.7691 118 0.03 50
IV.SMA1.EHZ. 2018-11-24T05:16:47.40 0.1 undecidable manual S 137 16.6722 122 -0.11 98
IV.TERO.HHZ. 2018-11-24T05:16:47.56 0.6 undecidable manual P 111 35.8419 50 -0.15 47
IV.MTRA.HNZ. 2018-11-24T05:16:47.53 0.3 undecidable manual S 84 16.5723 122 0.08 74
IV.RM33.EHZ. 2018-11-24T05:16:46.14 0.1 undecidable manual P 176 25.6521 50 -0.01 99
IV.NRCA.HHZ. 2018-11-24T05:16:46.02 0.1 undecidable manual S 328 12.2766 130 -0.23 96
IV.MMO1.EHZ. 2018-11-24T05:16:45.27 0.1 undecidable manual P 31 20.6682 117 -0.04 99
IV.LNSS.HHZ. 2018-11-24T05:16:45.16 0.6 undecidable manual P 220 19.7691 118 0.01 50
IV.MC2.EHZ. 2018-11-24T05:16:45.01 0.1 undecidable manual P 359 18.9699 119 -0.01 100
IV.MTRA.HNZ. 2018-11-24T05:16:44.75 0.6 undecidable manual P 84 16.5723 122 0.16 49
IV.SMA1.EHZ. 2018-11-24T05:16:44.91 0.6 negative manual P 137 16.6722 122 0.29 47
IV.NRCA.HHZ. 2018-11-24T05:16:43.95 0.1 undecidable manual P 328 12.2766 130 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.9 0.000926 0.12 AML other m 2018-11-24T05:16:46.20
IV.NRCA.HHN. ML:1.7 0.0006165000000000001 1.14 AML other m 2018-11-24T05:16:46.15
IV.SMA1.EHE. ML:1.3 0.0001535 0.2 AML other m 2018-11-24T05:16:47.86
IV.SMA1.EHN. ML:1.1 0.000117 1.34 AML other m 2018-11-24T05:16:48.96
IV.LNSS.HHN. ML:1.5 0.000216 0.66 AML other m 2018-11-24T05:16:48.97
IV.LNSS.HNE. ML:1.6 0.000272 0.12 AML other m 2018-11-24T05:16:49.16
IV.LNSS.HHE. ML:1.6 0.000277 1.62 AML other m 2018-11-24T05:16:49.10
IV.LNSS.HNN. ML:1.5 0.00023299999999999997 1.36 AML other m 2018-11-24T05:16:49.97
IV.RM33.EHN. ML:0.9 0.00004315 0.54 AML other m 2018-11-24T05:16:50.65
IV.RM33.EHE. ML:1.0 0.0000594 0.34 AML other m 2018-11-24T05:16:51.10
IV.TERO.HHN. ML:1.4 0.000093 0.1 AML other m 2018-11-24T05:16:53.11
IV.TERO.HHE. ML:1.2 0.00006035 0.1 AML other m 2018-11-24T05:16:53.21
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