Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 08-01-2019 and time 18:59:31 (Italy) in region 5 km W Arquata del Tronto (AP)

A magnitude ML 0.5 earthquake occured in region: 5 km W Arquata del Tronto (AP), on

  • 08-01-2019 17:59:31 (UTC)
  • 08-01-2019 18:59:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7960, 13.2380 at 14 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
Arquata del Tronto AP 5 1178 1178
Montegallo AP 9 523 1701
Accumoli RI 11 667 2368
Norcia PG 12 4957 7325
Castelsantangelo sul Nera MC 13 281 7606
Montemonaco AP 14 604 8210
Acquasanta Terme AP 14 2916 11126
Montefortino FM 19 1178 12304
Ussita MC 19 444 12748
Preci PG 19 724 13472
Amatrice RI 19 2657 16129
Visso MC 19 1107 17236

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
51 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
91 Km NW of Chieti (51815 inhabitants)
94 Km S of Ancona (100861 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km NE of Tivoli (56533 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 0.5 2019-01-08
17:59:31		 42.7955 13.2382 14 2019-01-08
18:06:20		 Sala Sismica INGV-Roma 64589731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-08 17:59:31 ± 0.09
Latitude 42.7955 ± 0.0027
Longitude 13.2382 ± 0.0049
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64589731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 396
Semi-minor axis of confidence ellipse (meter) 155
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
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) 124
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.09803
Epicentral distance of station farthest from the epicenter (degree) 0.31926
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 64589731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-08 18:06:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-01-08T17:59:43.20 0.6 undecidable manual S 123 35.4423 97 -0.04 50
IV.FDMO.HHZ. 2019-01-08T17:59:41.46 0.6 undecidable manual S 335 29.4483 99 -0.19 49
IV.SMA1.EHZ. 2019-01-08T17:59:38.98 0.6 undecidable manual S 157 19.9689 108 -0.21 50
IV.MMO1.EHZ. 2019-01-08T17:59:37.68 0.3 undecidable manual S 32 13.5753 123 0.02 78
IV.NRCA.HHZ. 2019-01-08T17:59:37.01 0.3 undecidable manual S 293 10.878 131 -0.08 77
IV.TERO.HHZ. 2019-01-08T17:59:37.94 0.3 undecidable manual P 123 35.4423 97 -0.25 72
IV.MC2.EHZ. 2019-01-08T17:59:37.51 0.3 undecidable manual S 343 13.4754 123 -0.12 77
IV.FDMO.HHZ. 2019-01-08T17:59:37.20 0.3 undecidable manual P 335 29.4483 99 -0.07 76
IV.SMA1.EHZ. 2019-01-08T17:59:35.84 0.3 undecidable manual P 157 19.9689 108 -0.01 78
IV.MMO1.EHZ. 2019-01-08T17:59:35.10 0.3 undecidable manual P 32 13.5753 123 0.14 76
IV.MC2.EHZ. 2019-01-08T17:59:35.25 0.6 undecidable manual P 343 13.4754 123 0.31 49
IV.T1299.HNZ. 2019-01-08T17:59:35.80 0.1 undecidable manual P 169 18.2706 111 0.2 100
IV.NRCA.HHZ. 2019-01-08T17:59:34.80 0.3 undecidable manual P 293 10.878 131 0.17 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.3 0.0000087509545 1.152 AML other m 2019-01-08T17:59:41.12
IV.FDMO.HHN. ML:0.3 0.000008124793500000001 0.2176 AML other m 2019-01-08T17:59:42.04
IV.TERO.HNE. ML:1.2 0.000065541985 1.408 AML other m 2019-01-08T17:59:43.04
IV.TERO.HHE. ML:0.1 0.000006588791 1.7408 AML other m 2019-01-08T17:59:43.73
IV.TERO.HNN. ML:1.2 0.00006290086 0.832 AML other m 2019-01-08T17:59:43.58
IV.TERO.HHN. ML:0.4 0.0000084242715 0.1024 AML other m 2019-01-08T17:59:43.42
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