Earthquake with magnitude of ML 1.1 on date 02-02-2020 and time 03:39:21 (Italy) in region 2 km SE Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 2 km SE Accumoli (RI), on

  • 02-02-2020 02:39:21 (UTC)
  • 02-02-2020 03:39:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6860, 13.2620 at 11 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.

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 2 667 667
Amatrice RI 7 2657 3324
Arquata del Tronto AP 10 1178 4502
Cittareale RI 11 482 4984
Acquasanta Terme AP 15 2916 7900
Campotosto AQ 17 542 8442
Montereale AQ 18 2581 11023
Norcia PG 18 4957 15980
Montegallo AP 19 523 16503
Capitignano AQ 19 665 17168

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km W of Teramo (54892 inhabitants)
39 Km N of L'Aquila (69753 inhabitants)
52 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
89 Km NE of Tivoli (56533 inhabitants)
99 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 1.1 2020-02-02
02:39:21
42.6857 13.2622 11 2020-02-02
02:45:26
Sala Sismica INGV-Roma 76115981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-02 02:39:21 ± 0.08
Latitude 42.6857 ± 0.0054
Longitude 13.2622 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76115981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 554
Semi-minor axis of confidence ellipse (meter) 323
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 202
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 13
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 10
Type of magnitude ML
Reference to an origin 76115981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-02 02:45:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2020-02-02T02:39:39.77 3.0 undecidable manual Pn -1.12 0
IV.MF5.EHZ. 2020-02-02T02:39:34.89 1.0 undecidable manual S 26 37.1295 50 1.12 17
IV.GAVE.EHZ. 2020-02-02T02:39:31.71 0.6 undecidable manual S 272 30.0477 50 -0.15 47
IV.TERO.HHZ. 2020-02-02T02:39:30.88 0.6 undecidable manual S 104 28.749 50 -0.64 42
IV.LNSS.HHZ. 2020-02-02T02:39:29.22 0.6 undecidable manual S 243 20.2686 117 0.01 50
IV.MF5.EHZ. 2020-02-02T02:39:29.07 0.1 undecidable manual P 26 37.1295 50 0.59 84
IV.RM33.EHZ. 2020-02-02T02:39:29.26 0.6 undecidable manual S 191 19.9689 118 0.15 48
IV.ARRO.EHZ. 2020-02-02T02:39:29.39 3.0 positive manual P 3.68 0
IV.GIGS.HHZ. 2020-02-02T02:39:28.23 0.1 undecidable manual P 135 36.1416 50 -0.1 95
IV.NRCA.HHZ. 2020-02-02T02:39:28.95 0.1 undecidable manual S 324 20.3685 117 -0.27 94
IV.GAVE.EHZ. 2020-02-02T02:39:27.29 0.1 undecidable manual P 272 30.0477 50 -0.09 96
IV.MTRA.EHZ. 2020-02-02T02:39:27.01 0.6 undecidable manual S 54 13.4754 128 -0.2 48
IV.RM33.EHZ. 2020-02-02T02:39:26.22 0.6 undecidable manual P 191 19.9689 118 0.42 46
IV.TERO.HHZ. 2020-02-02T02:39:26.89 0.3 negative manual P 104 28.749 50 -0.3 69
IV.NRCA.HHZ. 2020-02-02T02:39:25.80 0.1 undecidable manual P 324 20.3685 117 -0.06 98
IV.SMA1.EHZ. 2020-02-02T02:39:25.78 0.6 undecidable manual S 136 8.5803 141 -0.2 49
IV.LNSS.HHZ. 2020-02-02T02:39:25.88 0.1 undecidable manual P 243 20.2686 117 0.03 99
IV.SMA1.EHZ. 2020-02-02T02:39:24.22 0.1 negative manual P 136 8.5803 141 0.23 97
IV.MTRA.EHZ. 2020-02-02T02:39:24.73 0.1 undecidable manual P 54 13.4754 128 0.03 100
IV.APEC.HHZ. 2020-02-02T02:39:22.95 3.0 undecidable manual P -0.42 0
IV.ARVD.HHZ. 2020-02-02T02:39:16.50 3.0 undecidable manual P -0.58 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.1 0.00016999999999999999 0.34 AML other m 2020-02-02T02:39:26.20
IV.SMA1.EHE. ML:1.1 0.000183 0.58 AML other m 2020-02-02T02:39:26.28
IV.NRCA.HHE. ML:1.2 0.0001182 0.12 AML other m 2020-02-02T02:39:29.26
IV.LNSS.HHN. ML:1.3 0.0001545 0.14 AML other m 2020-02-02T02:39:29.48
IV.LNSS.HHE. ML:1.3 0.0001555 0.28 AML other m 2020-02-02T02:39:29.36
IV.NRCA.HHN. ML:1.1 0.00008645 1.18 AML other m 2020-02-02T02:39:29.78
IV.RM33.EHE. ML:0.8 0.000048899999999999996 0.12 AML other m 2020-02-02T02:39:29.95
IV.RM33.EHN. ML:0.7 0.00003715 0.16 AML other m 2020-02-02T02:39:30.43
IV.TERO.HHE. ML:1.0 0.00004285 0.9 AML other m 2020-02-02T02:39:31.03
IV.TERO.HHN. ML:1.1 0.00006615 1.44 AML other m 2020-02-02T02:39:31.17
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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