Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 24-02-2020 and time 13:59:13 (UTC) in region 7 km W Accumoli (RI)

A magnitude ML 1.0 earthquake occured in region: 7 km W Accumoli (RI), on

  • 24-02-2020 13:59:13 (UTC)
  • 24-02-2020 14:59:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7220, 13.1700 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.

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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 7 667 667
Norcia PG 10 4957 5624
Cittareale RI 12 482 6106
Arquata del Tronto AP 12 1178 7284
Cascia PG 13 3217 10501
Amatrice RI 14 2657 13158
Montegallo AP 19 523 13681
Poggiodomo PG 19 117 13798
Monteleone di Spoleto PG 19 599 14397
Castelsantangelo sul Nera MC 19 281 14678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
45 Km NW of L'Aquila (69753 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
46 Km E of Terni (111501 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
90 Km W of Pescara (121014 inhabitants)
92 Km W of Chieti (51815 inhabitants)
93 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 1.0 2020-02-24
13:59:13		 42.7217 13.1697 11 2020-02-24
14:04:32		 Sala Sismica INGV-Roma 76774301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-24 13:59:13 ± 0.06
Latitude 42.7217 ± 0.0027
Longitude 13.1697 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76774301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 272
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.11871
Epicentral distance of station farthest from the epicenter (degree) 0.37052
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 76774301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-24 14:04:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-02-24T13:59:27.15 0.6 undecidable manual S 4 41.1255 50 0.37 47
IV.FDMO.HHZ. 2020-02-24T13:59:25.02 0.3 undecidable manual S 349 35.5422 50 -0.26 67
IV.TERO.HHZ. 2020-02-24T13:59:25.60 0.3 undecidable manual S 107 37.1295 50 -0.09 69
IV.CAMP.HHZ. 2020-02-24T13:59:23.46 0.3 undecidable manual S 136 28.4493 50 0.09 73
IV.CSP1.EHZ. 2020-02-24T13:59:21.11 1.0 negative manual P 4 41.1255 50 0.05 24
IV.RM33.EHZ. 2020-02-24T13:59:21.54 0.3 undecidable manual S 171 23.8539 50 -0.63 61
IV.MC2.EHZ. 2020-02-24T13:59:21.53 0.3 undecidable manual S 4 21.0678 50 0.11 74
IV.GAVE.EHZ. 2020-02-24T13:59:21.84 0.6 undecidable manual S 262 22.6551 50 -0.01 50
IV.MMO1.EHZ. 2020-02-24T13:59:21.95 0.3 undecidable manual S 33 23.4543 50 -0.11 71
IV.LNSS.HHZ. 2020-02-24T13:59:20.35 0.6 undecidable manual S 219 16.872 122 0.19 48
IV.FDMO.HHZ. 2020-02-24T13:59:20.15 1.0 negative manual P 349 35.5422 50 -0.04 24
IV.SMA1.EHZ. 2020-02-24T13:59:20.82 0.6 undecidable manual S 127 16.872 122 0.66 43
IV.TERO.HHZ. 2020-02-24T13:59:20.43 0.6 undecidable manual P 107 37.1295 50 0 48
IV.MTRA.EHZ. 2020-02-24T13:59:20.52 0.3 undecidable manual S 78 18.87 119 -0.24 71
IV.CAMP.HHZ. 2020-02-24T13:59:19.07 0.1 undecidable manual P 136 28.4493 50 -0.02 96
IV.GAVE.EHZ. 2020-02-24T13:59:18.27 0.1 positive manual P 262 22.6551 50 0.06 100
IV.NRCA.HHZ. 2020-02-24T13:59:18.91 0.6 undecidable manual S 340 13.1757 129 -0.21 49
IV.MMO1.EHZ. 2020-02-24T13:59:18.32 0.1 undecidable manual P 33 23.4543 50 -0.01 97
IV.MC2.EHZ. 2020-02-24T13:59:18.16 1.0 negative manual P 4 21.0678 50 0.19 24
IV.SMA1.EHZ. 2020-02-24T13:59:17.71 0.1 undecidable manual P 127 16.872 122 0.47 92
IV.MTRA.EHZ. 2020-02-24T13:59:17.67 0.6 negative manual P 78 18.87 119 0.09 50
IV.RM33.EHZ. 2020-02-24T13:59:17.87 0.6 undecidable manual P 171 23.8539 50 -0.52 43
IV.LNSS.HHZ. 2020-02-24T13:59:17.46 0.1 undecidable manual P 219 16.872 122 0.22 97
IV.NRCA.HHZ. 2020-02-24T13:59:16.75 0.1 positive manual P 340 13.1757 129 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.3 0.0001525 1.02 AML other m 2020-02-24T13:59:21.27
IV.NRCA.HHE. ML:1.3 0.0002205 0.82 AML other m 2020-02-24T13:59:19.24
IV.MTRA.EHN. ML:1.0 0.0000741 0.88 AML other m 2020-02-24T13:59:20.79
IV.LNSS.HHE. ML:1.3 0.000156 0.44 AML other m 2020-02-24T13:59:20.67
IV.SMA1.EHN. ML:0.9 0.00006254999999999999 0.14 AML other m 2020-02-24T13:59:21.05
IV.MTRA.EHE. ML:1.2 0.0001185 0.88 AML other m 2020-02-24T13:59:21.71
IV.SMA1.EHE. ML:1.0 0.0000929 0.16 AML other m 2020-02-24T13:59:21.34
IV.GAVE.EHN. ML:1.0 0.0000614 1.34 AML other m 2020-02-24T13:59:23.08
IV.GAVE.EHE. ML:1.2 0.00008834999999999999 0.9 AML other m 2020-02-24T13:59:23.36
IV.TERO.HHE. ML:0.9 0.00003105 0.72 AML other m 2020-02-24T13:59:26.09
IV.TERO.HHN. ML:0.9 0.00003145 0.44 AML other m 2020-02-24T13:59:27.33
IV.RM33.EHE. ML:0.8 0.000034219515 0.1408 AML other m 2020-02-24T13:59:23.11
IV.RM33.EHN. ML:0.8 0.00003537596499999999 0.1408 AML other m 2020-02-24T13:59:21.82
IV.FDMO.HHE. ML:0.4 0.000011426749 0.1792 AML other m 2020-02-24T13:59:26.79
IV.FDMO.HHN. ML:0.6 0.00001446739 0.16 AML other m 2020-02-24T13:59:27.02
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