Earthquake with magnitude of ML 1.5 on date 16-02-2020 and time 17:59:54 (Italy) in region 2 km SW Accumoli (RI)

A magnitude ML 1.5 earthquake occured in region: 2 km SW Accumoli (RI), on

  • 16-02-2020 16:59:54 (UTC)
  • 16-02-2020 17:59:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.68, 13.24 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Cittareale RI 9 482 3806
Arquata del Tronto AP 12 1178 4984
Montereale AQ 17 2581 7565
Campotosto AQ 17 542 8107
Acquasanta Terme AP 17 2916 11023
Norcia PG 18 4957 15980
Capitignano AQ 18 665 16645
Cascia PG 19 3217 19862

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km W of Teramo (54892 inhabitants)
38 Km NW of L'Aquila (69753 inhabitants)
50 Km E of Terni (111501 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
83 Km W of Pescara (121014 inhabitants)
84 Km W of Chieti (51815 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
97 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
Bulletin
Rev1000
ML 1.5 2020-02-16
16:59:54
42.68 13.24 11 2020-07-18
21:08:32
Bollettino Sismico Italiano INGV 78192761
Reviewed
Rev100
ML 1.6 2020-02-16
16:59:54
42.68 13.23 9 2020-02-16
17:09:05
Sala Sismica INGV-Roma 76572111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-16 16:59:54 ± 0.07
Latitude 42.68 ± 0.00
Longitude 13.24 ± 0.00
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78192761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.661
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 78192761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-14 10:53:52

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 76572111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-16 17:09:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IT.VNF1.HGZ. 2020-02-16T17:00:19.98 3.0 positive manual P 0.48 0
IV.CSP1.EHZ. 2020-02-16T17:00:10.00 0.3 undecidable manual S 356 0.4164 90 0.33 66
IV.FOSV.EHZ. 2020-02-16T17:00:09.41 3.0 undecidable manual P 0.3 0
IV.CESI.HHZ. 2020-02-16T17:00:09.35 0.3 undecidable manual S 323 0.4101 90 -0.15 69
IV.GUMA.HHZ. 2020-02-16T17:00:09.74 0.3 undecidable manual S 10 0.393 90 0.76 56
IV.MF5.EHZ. 2020-02-16T17:00:08.58 0.3 undecidable manual S 27 0.3507 90 0.84 54
IV.RM33.HNE. 2020-02-16T17:00:08.04 0.3 undecidable manual S 0.1682 5.73 0
IV.FDMO.HHZ. 2020-02-16T17:00:08.39 0.3 undecidable manual S 343 0.3777 90 -0.12 71
IV.EL6.EHZ. 2020-02-16T17:00:07.54 0.3 undecidable manual P 351 0.661 90 -0.07 67
IV.GIGS.HHZ. 2020-02-16T17:00:06.90 0.3 undecidable manual S 132 0.331 90 -0.25 68
IV.MNTT.EHZ. 2020-02-16T17:00:05.10 0.1 undecidable manual P 34 0.4658 90 0.84 72
IV.RM33.HNE. 2020-02-16T17:00:05.13 3.0 positive manual P 0.1682 5.96 0
IV.TERO.HHZ. 2020-02-16T17:00:05.10 0.3 undecidable manual S 101 0.2725 90 -0.32 69
IV.GUMA.HHZ. 2020-02-16T17:00:03.19 0.1 undecidable manual P 10 0.393 90 0.17 91
IV.CSP1.EHZ. 2020-02-16T17:00:03.29 0.1 undecidable manual P 356 0.4164 90 -0.13 93
IV.MMO1.EHZ. 2020-02-16T17:00:03.92 0.3 undecidable manual S 16 0.232 90 -0.29 71
IV.LNSS.HHZ. 2020-02-16T17:00:02.06 0.3 undecidable manual S 244 0.1637 90 -0.13 71
IV.FDMO.HHZ. 2020-02-16T17:00:02.52 0.1 undecidable manual P 343 0.3777 90 -0.23 91
IV.NRCA.HNZ. 2020-02-16T17:00:02.10 0.3 undecidable manual S 330 0.1826 90 -0.64 64
IV.MF5.EHZ. 2020-02-16T17:00:02.55 0.1 undecidable manual P 27 0.3507 90 0.25 91
IV.CAMP.HHZ. 2020-02-16T17:00:02.88 0.3 undecidable manual S 138 0.1871 90 -0.01 73
IV.CESI.HHZ. 2020-02-16T17:00:02.89 0.3 undecidable manual P 323 0.4101 90 -0.43 65
IV.GIGS.HHZ. 2020-02-16T17:00:01.69 0.3 undecidable manual P 132 0.331 90 -0.27 68
IV.ARRO.EHZ. 2020-02-16T17:00:01.95 0.3 undecidable manual P 255 0.3615 90 -0.54 62
IV.MTRA.EHZ. 2020-02-16T17:00:01.19 0.3 undecidable manual S 55 0.1403 90 -0.31 72
IV.TERO.HHZ. 2020-02-16T17:00:00.69 0.1 undecidable manual P 101 0.2725 90 -0.27 92
IV.MMO1.EHZ. 2020-02-16T17:00:00.03 0.1 undecidable manual P 16 0.232 90 -0.24 94
IV.MC2.EHZ. 2020-02-16T17:00:00.28 0.3 undecidable manual P 351 0.2383 90 -0.09 73
IV.SMA1.EHN. 2020-02-16T17:00:00.19 0.1 undecidable manual S 123 0.0836 124 0.3 96
IV.CAMP.HHZ. 2020-02-16T16:59:59.55 0.1 positive manual P 138 0.1871 90 0.05 99
IV.LNSS.HHZ. 2020-02-16T16:59:59.04 0.1 positive manual P 244 0.1637 90 -0.06 96
IV.NRCA.HNZ. 2020-02-16T16:59:59.15 0.1 negative manual P 330 0.1826 90 -0.27 94
IV.T1299.HNN. 2020-02-16T16:59:59.47 0.1 undecidable manual S 143 0.0522 143 0.25 98
IV.MTRA.EHZ. 2020-02-16T16:59:58.66 0.1 positive manual P 55 0.1403 90 -0.04 100
IV.SMA1.EHN. 2020-02-16T16:59:58.03 0.1 undecidable manual P 123 0.0836 124 0.26 97
IV.T1299.HNN. 2020-02-16T16:59:57.67 0.1 undecidable manual P 143 0.0522 143 0.29 97
MN.AQU.HNN. 2020-02-16T16:59:55.12 0.3 undecidable manual P 0.3435 -7.06 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.8 0.000571 0.14 AML other m 2020-02-16T17:00:01.31
IV.MTRA.HNN. ML:1.8 0.000575 1.16 AML other m 2020-02-16T17:00:01.31
IV.NRCA.HNE. ML:2.5 0.002355 0.1 AML other m 2020-02-16T17:00:02.20
IV.NRCA.HHE. ML:2.5 0.002325 0.1 AML other m 2020-02-16T17:00:02.20
IV.LNSS.HHN. ML:1.8 0.000543 0.38 AML other m 2020-02-16T17:00:02.37
IV.NRCA.HNN. ML:2.6 0.00308 0.46 AML other m 2020-02-16T17:00:02.19
IV.NRCA.HHN. ML:2.7 0.00339 0.44 AML other m 2020-02-16T17:00:02.20
IV.LNSS.HHE. ML:1.8 0.000574 0.34 AML other m 2020-02-16T17:00:02.30
IV.MTRA.EHE. ML:1.8 0.0005795 0.22 AML other m 2020-02-16T17:00:02.65
IV.MTRA.HNE. ML:1.8 0.000621 0.22 AML other m 2020-02-16T17:00:02.54
IV.CAMP.HHE. ML:1.1 8.265E-5 1.76 AML other m 2020-02-16T17:00:02.09
IV.CAMP.HHN. ML:0.9 5.13E-5 1.56 AML other m 2020-02-16T17:00:04.10
IV.TERO.HHN. ML:1.5 0.0001455 1.72 AML other m 2020-02-16T17:00:06.04
IV.TERO.HHE. ML:1.3 0.0001006 1.5 AML other m 2020-02-16T17:00:06.11
IV.FDMO.HHN. ML:1.2 5.515E-5 1.3 AML other m 2020-02-16T17:00:08.84
IV.ARRO.EHN. ML:1.2 5.635E-5 0.32 AML other m 2020-02-16T17:00:09.10
IV.ARRO.EHE. ML:1.2 5.735E-5 0.8 AML other m 2020-02-16T17:00:09.82
IV.GUMA.HHE. ML:2.1 0.0004045 1.72 AML other m 2020-02-16T17:00:09.98
IV.GUMA.HHN. ML:1.9 0.000239 0.38 AML other m 2020-02-16T17:00:10.22
IV.FDMO.HHE. ML:1.2 5.315E-5 0.6 AML other m 2020-02-16T17:00:10.11
IV.CSP1.EHN. ML:1.5 9.585E-5 0.2 AML other m 2020-02-16T17:00:10.66
IV.CSP1.EHE. ML:1.4 8.23E-5 0.22 AML other m 2020-02-16T17:00:10.88
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download