Earthquake with magnitude of ML 1.3 on date 03-02-2020 and time 23:46:15 (Italy) in region 4 km NW Accumoli (RI)

A magnitude ML 1.3 earthquake occured in region: 4 km NW Accumoli (RI), on

  • 03-02-2020 22:46:15 (UTC)
  • 03-02-2020 23:46:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.71, 13.21 at 15 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 4 667 667
Arquata del Tronto AP 10 1178 1845
Cittareale RI 11 482 2327
Amatrice RI 11 2657 4984
Norcia PG 13 4957 9941
Cascia PG 16 3217 13158
Acquasanta Terme AP 18 2916 16074
Montegallo AP 18 523 16597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
43 Km NW of L'Aquila (69753 inhabitants)
49 Km E of Terni (111501 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.3 2020-02-03
22:46:15
42.71 13.21 15 2020-02-03
22:57:07
Sala Sismica INGV-Roma 76177421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-03 22:46:15 ± 0.08
Latitude 42.71 ± 0.00
Longitude 13.21 ± 0.00
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76177421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 412
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 21
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
Epicentral distance of station farthest from the epicenter (degree) 0.37232
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 76177421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-03 22:57:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2020-02-03T22:46:28.64 3.0 undecidable manual S -0.23 0
IV.GIGS.HHZ. 2020-02-03T22:46:28.50 0.3 undecidable manual S 134 0.3723 97 -0.1 72
IV.TERO.HHZ. 2020-02-03T22:46:26.32 0.3 undecidable manual S 107 0.3031 100 -0.23 71
IV.SNTG.HHZ. 2020-02-03T22:46:26.31 3.0 positive manual P -0.06 0
IV.RM33.EHZ. 2020-02-03T22:46:25.82 3.0 undecidable manual S 0
IV.CAMP.HHZ. 2020-02-03T22:46:24.38 0.3 undecidable manual S 141 0.2302 106 -0.06 75
IV.GAVE.HNZ. 2020-02-03T22:46:24.60 0.3 undecidable manual S 265 0.2338 105 0.06 76
IV.MMO1.EHZ. 2020-02-03T22:46:23.59 0.3 undecidable manual S 25 0.2041 109 -0.11 75
IV.MC2.EHZ. 2020-02-03T22:46:23.78 0.3 undecidable manual S 355 0.1979 110 0.24 73
IV.RM33.EHZ. 2020-02-03T22:46:22.22 3.0 undecidable manual P 0
IV.GIGS.HHZ. 2020-02-03T22:46:22.82 0.6 undecidable manual P 134 0.3723 97 -0.04 48
IV.LNSS.HHZ. 2020-02-03T22:46:22.86 0.3 undecidable manual S 228 0.1673 115 0.16 75
IV.NRCA.HHZ. 2020-02-03T22:46:21.65 0.1 undecidable manual S 329 0.1385 122 -0.31 96
IV.TERO.HHZ. 2020-02-03T22:46:21.77 0.3 undecidable manual P 107 0.3031 100 0.09 74
IV.SMA1.EHZ. 2020-02-03T22:46:21.51 0.3 undecidable manual S 132 0.1241 126 -0.09 76
IV.MMO1.EHZ. 2020-02-03T22:46:20.09 0.3 undecidable manual P 25 0.2041 109 0.05 75
IV.MC2.EHZ. 2020-02-03T22:46:20.08 0.3 undecidable manual P 355 0.1979 110 0.13 74
IV.T1299.HNZ. 2020-02-03T22:46:20.99 0.3 undecidable manual S 147 0.0953 136 0.03 77
IV.CAMP.HHZ. 2020-02-03T22:46:20.54 0.1 undecidable manual P 141 0.2302 106 0.07 100
IV.GAVE.HNZ. 2020-02-03T22:46:20.01 0.3 undecidable manual P 265 0.2338 105 -0.51 66
IV.MTRA.HNZ. 2020-02-03T22:46:19.11 0.3 undecidable manual P 73 0.143 121 0.02 77
IV.NRCA.HHZ. 2020-02-03T22:46:19.04 0.3 undecidable manual P 329 0.1385 122 0.01 77
IV.LNSS.HHZ. 2020-02-03T22:46:19.66 0.3 undecidable manual P 228 0.1673 115 0.2 74
IV.SMA1.EHZ. 2020-02-03T22:46:18.98 0.1 undecidable manual P 132 0.1241 126 0.16 100
IV.T1299.HNZ. 2020-02-03T22:46:18.73 0.3 undecidable manual P 147 0.0953 136 0.27 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHE. ML:1.2 6.510676E-5 0.1408 AML other m 2020-02-03T22:46:27.14
IV.SMA1.EHN. ML:1.3 0.00016315645 0.2176 AML other m 2020-02-03T22:46:22.09
IV.NRCA.HNN. ML:1.6 0.00031949025 0.9344 AML other m 2020-02-03T22:46:22.39
IV.NRCA.HHE. ML:1.5 0.0002306587 0.0896 AML other m 2020-02-03T22:46:21.73
IV.NRCA.HHN. ML:1.5 0.00024011595 0.1024 AML other m 2020-02-03T22:46:21.73
IV.LNSS.HNE. ML:1.4 0.0001576116 0.1152 AML other m 2020-02-03T22:46:23.41
IV.LNSS.HNN. ML:1.2 0.000122495785 0.2688 AML other m 2020-02-03T22:46:23.30
IV.LNSS.HHE. ML:1.4 0.00017582595 0.128 AML other m 2020-02-03T22:46:23.35
IV.LNSS.HHN. ML:1.3 0.00015171395 0.256 AML other m 2020-02-03T22:46:23.04
IV.CAMP.HHE. ML:0.5 1.65937816E-5 0.1536 AML other m 2020-02-03T22:46:25.08
IV.CAMP.HHN. ML:0.8 3.1604255E-5 0.2304 AML other m 2020-02-03T22:46:24.67
IV.TERO.HHN. ML:1.2 6.831298E-5 0.1408 AML other m 2020-02-03T22:46:26.98
IV.GIGS.HHE. ML:0.7 1.5476485E-5 0.0768 AML other m 2020-02-03T22:46:29.03
IV.GIGS.HHN. ML:0.7 1.6034755E-5 0.0768 AML other m 2020-02-03T22:46:29.00
IV.NRCA.HNE. ML:1.6 0.00030790175 1.2416 AML other m 2020-02-03T22:46:21.68
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download