Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 01-01-2020 and time 04:47:29 (Italy) in region 3 km SE Accumoli (RI)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Accumoli (RI), on

  • 01-01-2020 03:47:29 (UTC)
  • 01-01-2020 04:47:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6720, 13.2720 at 7 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 3 667 667
Amatrice RI 5 2657 3324
Cittareale RI 11 482 3806
Arquata del Tronto AP 12 1178 4984
Campotosto AQ 15 542 5526
Acquasanta Terme AP 16 2916 8442
Montereale AQ 17 2581 11023
Capitignano AQ 17 665 11688
Montegallo AP 20 523 12211
Valle Castellana TE 20 977 13188
Norcia PG 20 4957 18145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
37 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
100 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 0.9 2020-01-01
03:47:29		 42.672 13.2725 7 2020-01-01
03:51:13		 Sala Sismica INGV-Roma 75157031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-01 03:47:29 ± 0.14
Latitude 42.6720 ± 0.0036
Longitude 13.2725 ± 0.0061
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75157031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 385
Semi-minor axis of confidence ellipse (meter) 311
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
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) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.38851
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:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 75157031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-01 03:51:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-01-01T03:47:38.69 0.6 undecidable manual S 10 25.5522 106 -0.14 48
IV.FDMO.HHZ. 2020-01-01T03:47:38.68 1.0 positive manual P 340 43.1235 50 0.56 21
IV.NRCA.HHZ. 2020-01-01T03:47:37.72 0.6 undecidable manual S 324 22.0668 109 0.06 49
IV.LNSS.HHZ. 2020-01-01T03:47:37.32 0.6 undecidable manual S 248 20.4684 110 0.19 48
IV.RM33.EHZ. 2020-01-01T03:47:36.27 0.6 undecidable manual S 195 18.6702 112 -0.29 47
IV.GAVE.EHZ. 2020-01-01T03:47:35.60 1.0 undecidable manual P 274 30.9468 103 -0.35 23
IV.MTRA.EHZ. 2020-01-01T03:47:34.92 0.6 undecidable manual S 47 13.7751 118 -0.1 50
IV.NRCA.HHZ. 2020-01-01T03:47:34.25 0.3 negative manual P 324 22.0668 109 0 75
IV.MMO1.EHZ. 2020-01-01T03:47:34.72 1.0 undecidable manual P 10 25.5522 106 -0.2 24
IV.SMA1.EHZ. 2020-01-01T03:47:33.39 0.6 undecidable manual S 132 6.8931 137 0.3 48
IV.LNSS.HHZ. 2020-01-01T03:47:33.96 0.1 positive manual P 248 20.4684 110 0.02 100
IV.RM33.EHZ. 2020-01-01T03:47:33.46 0.6 positive manual P 195 18.6702 112 -0.15 49
IV.MTRA.EHZ. 2020-01-01T03:47:32.72 0.3 undecidable manual P 47 13.7751 118 0 76
IV.SMA1.EHZ. 2020-01-01T03:47:31.79 1.0 undecidable manual P 132 6.8931 137 0.18 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.3 0.000242 0.48 AML other m 2020-01-01T03:47:35.03
IV.MTRA.EHE. ML:1.3 0.000214 1.22 AML other m 2020-01-01T03:47:35.30
IV.RM33.EHN. ML:0.7 0.000041800000000000006 0.44 AML other m 2020-01-01T03:47:36.63
IV.RM33.EHE. ML:0.7 0.00003905 0.68 AML other m 2020-01-01T03:47:37.24
IV.LNSS.HHE. ML:0.9 0.000053849999999999994 0.7 AML other m 2020-01-01T03:47:37.59
IV.NRCA.HHE. ML:0.9 0.00005935 0.46 AML other m 2020-01-01T03:47:38.18
IV.LNSS.HHN. ML:0.8 0.000047 0.62 AML other m 2020-01-01T03:47:38.42
IV.NRCA.HHN. ML:0.7 0.00003505 1.16 AML other m 2020-01-01T03:47:39.34
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