Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 11-01-2019 and time 08:25:20 (Italy) in region 4 km E Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 4 km E Accumoli (RI), on

  • 11-01-2019 07:25:20 (UTC)
  • 11-01-2019 08:25:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6970, 13.2960 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 4 667 667
Amatrice RI 7 2657 3324
Arquata del Tronto AP 9 1178 4502
Acquasanta Terme AP 12 2916 7418
Cittareale RI 14 482 7900
Montegallo AP 17 523 8423
Campotosto AQ 17 542 8965
Valle Castellana TE 17 977 9942
Rocca Santa Maria TE 19 537 10479
Cortino TE 19 656 11135
Montereale AQ 20 2581 13716
Capitignano AQ 20 665 14381
Norcia PG 20 4957 19338

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
39 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 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 1.1 2019-01-11
07:25:20		 42.6968 13.2958 10 2019-01-11
07:31:53		 Sala Sismica INGV-Roma 64621731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-11 07:25:20 ± 0.09
Latitude 42.6968 ± 0.0027
Longitude 13.2958 ± 0.0061
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 64621731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 420
Semi-minor axis of confidence ellipse (meter) 305
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.31476
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 64621731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-11 07:31:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2019-01-11T07:25:29.30 0.6 undecidable manual S 244 23.3544 114 0.13 48
IV.RM33.EHZ. 2019-01-11T07:25:28.37 0.6 undecidable manual S 198 21.867 115 -0.35 46
IV.NRCA.HHN. 2019-01-11T07:25:28.44 0.6 undecidable manual S 316 21.1677 116 -0.06 49
IV.MMO1.EHZ. 2019-01-11T07:25:28.76 0.6 undecidable manual S 6 22.5552 114 -0.19 48
IV.MF5.EHZ. 2019-01-11T07:25:27.60 1.0 undecidable manual P 22 34.9428 50 0.33 23
IV.GAVE.EHZ. 2019-01-11T07:25:26.91 0.6 negative manual P 269 32.745 50 -0.02 49
IV.MMO1.EHZ. 2019-01-11T07:25:25.27 0.3 positive manual P 6 22.5552 114 -0.04 74
IV.LNSS.HHZ. 2019-01-11T07:25:25.41 0.3 undecidable manual P 244 23.3544 114 -0.04 74
IV.RM33.EHZ. 2019-01-11T07:25:25.01 0.6 positive manual P 198 21.867 115 -0.17 48
IV.NRCA.HHN. 2019-01-11T07:25:25.08 0.3 undecidable manual P 316 21.1677 116 0.03 74
IV.SMA1.EHZ. 2019-01-11T07:25:24.68 0.6 undecidable manual S 156 8.0808 142 -0.17 49
IV.CAMP.HHE. 2019-01-11T07:25:24.62 1.0 undecidable manual P 153 20.1687 117 -0.25 24
IV.T1299.EHZ. 2019-01-11T07:25:24.80 0.6 undecidable manual S 189 7.0929 145 0.16 49
IV.T1299.EHZ. 2019-01-11T07:25:23.09 0.1 undecidable manual P 189 7.0929 145 0.26 97
IV.SMA1.EHZ. 2019-01-11T07:25:23.04 0.1 negative manual P 156 8.0808 142 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.4 0.0003695953 0.16 AML other m 2019-01-11T07:25:24.78
IV.SMA1.EHE. ML:1.2 0.0002029597 0.1408 AML other m 2019-01-11T07:25:24.77
IV.RM33.EHE. ML:0.8 0.00004414832 1.6416 AML other m 2019-01-11T07:25:28.73
IV.RM33.EHN. ML:1.0 0.00005987141999999999 2.16 AML other m 2019-01-11T07:25:28.70
IV.LNSS.HHE. ML:0.9 0.000049149385000000006 0.3424 AML other m 2019-01-11T07:25:29.47
IV.LNSS.HHN. ML:1.2 0.00009591831 0.3808 AML other m 2019-01-11T07:25:29.51
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