Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 21-02-2019 and time 03:05:38 (Italy) in region 5 km NW Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 5 km NW Accumoli (RI), on

  • 21-02-2019 02:05:38 (UTC)
  • 21-02-2019 03:05:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7190, 13.2030 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.

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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 5 667 667
Arquata del Tronto AP 10 1178 1845
Cittareale RI 12 482 2327
Norcia PG 12 4957 7284
Amatrice RI 12 2657 9941
Cascia PG 15 3217 13158
Montegallo AP 17 523 13681
Acquasanta Terme AP 18 2916 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
49 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
89 Km W of Chieti (51815 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
96 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 1.6 2019-02-21
02:05:38		 42.7193 13.2027 11 2019-08-22
08:24:51		 Bollettino Sismico Italiano INGV 66016071
Reviewed
Rev100 		ML 1.8 2019-02-21
02:05:38		 42.7192 13.2037 11 2019-02-21
02:12:02		 Sala Sismica INGV-Roma 65749231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-21 02:05:38 ± 0.04
Latitude 42.7193 ± 0.0027
Longitude 13.2027 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66016071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 38
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.96497
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 35
Type of magnitude ML
Reference to an origin 66016071
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-27 10:49:20

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 65749231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-21 02:12:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.VNF1.HGZ. 2019-02-21T02:06:23.24 3.0 undecidable manual S 0.22 0
IV.MPAG.EHZ. 2019-02-21T02:05:56.74 0.6 undecidable manual P 341 107.115 50 0.33 40
IV.FRON.EHZ. 2019-02-21T02:05:54.90 0.6 undecidable manual P 337 96.6255 50 0.1 43
IV.INTR.HHZ. 2019-02-21T02:05:54.43 0.6 undecidable manual P 144 97.3248 50 -0.48 39
IV.FIAM.HHZ. 2019-02-21T02:05:54.66 0.6 undecidable manual S 188 50.5161 50 0.2 45
IV.ATFO.HHZ. 2019-02-21T02:05:53.58 0.6 undecidable manual P 325 88.1451 50 0.09 43
IV.SSFR.HHZ. 2019-02-21T02:05:53.38 0.6 undecidable manual P 337 86.5467 50 0.14 43
IV.ARVD.HHZ. 2019-02-21T02:05:53.79 0.6 undecidable manual P 346 88.9443 50 0.18 43
IV.CSP1.EHZ. 2019-02-21T02:05:52.09 0.6 undecidable manual S 0 41.3253 50 0.09 47
IV.GUMA.HHZ. 2019-02-21T02:05:52.35 0.6 undecidable manual S 16 39.627 50 0.82 38
IV.MURB.HHZ. 2019-02-21T02:05:52.66 0.6 undecidable manual P 318 81.6516 50 0.17 43
IV.GIGS.HHZ. 2019-02-21T02:05:51.92 0.6 undecidable manual S 134 42.2244 50 -0.32 45
IV.FOSV.EHZ. 2019-02-21T02:05:51.23 0.3 undecidable manual P 331 73.1712 50 0.04 68
IV.CESI.HHZ. 2019-02-21T02:05:51.53 0.6 undecidable manual S 323 39.9267 50 -0.08 48
IV.VCEL.EHZ. 2019-02-21T02:05:50.03 0.6 undecidable manual P 124 63.3921 50 0.36 43
IV.FDMO.HHZ. 2019-02-21T02:05:50.59 0.6 undecidable manual S 345 36.4413 50 -0.09 48
IV.ATCC.EHZ. 2019-02-21T02:05:50.58 0.6 undecidable manual P 319 68.9754 50 0.04 45
IV.EL6.EHZ. 2019-02-21T02:05:50.41 0.6 undecidable manual P 353 68.1762 50 0 46
IV.TERO.HHZ. 2019-02-21T02:05:49.91 0.6 undecidable manual S 108 34.4433 50 -0.25 46
IV.SNTG.HHZ. 2019-02-21T02:05:49.48 0.6 negative manual P 340 63.0924 50 -0.15 45
IV.CESX.HHZ. 2019-02-21T02:05:48.37 1.0 undecidable manual P 256 51.7038 50 0.49 21
IV.MOMA.HHZ. 2019-02-21T02:05:48.37 0.3 undecidable manual P 281 52.4031 50 0.39 65
IV.FAGN.HHZ. 2019-02-21T02:05:48.59 1.0 undecidable manual P 148 59.1963 50 -0.44 21
IV.FEMA.HNZ. 2019-02-21T02:05:48.68 0.6 undecidable manual S 335 29.6481 50 -0.2 47
IV.ASSB.HHZ. 2019-02-21T02:05:48.58 0.6 undecidable manual P 309 56.8986 50 -0.1 46
IV.FIAM.HHZ. 2019-02-21T02:05:47.69 0.3 undecidable manual P 188 50.5161 50 0 71
IV.RM33.EHZ. 2019-02-21T02:05:47.11 0.6 undecidable manual S 178 23.3544 50 -0.09 49
IV.OFFI.HHZ. 2019-02-21T02:05:47.82 0.1 undecidable manual P 58 46.0206 50 0.82 76
IV.GAVE.EHZ. 2019-02-21T02:05:47.66 0.6 undecidable manual S 263 25.3524 50 -0.06 49
IV.CAMP.HHZ. 2019-02-21T02:05:47.83 0.6 undecidable manual S 140 26.4513 50 -0.19 48
IV.GUMA.HHZ. 2019-02-21T02:05:46.18 0.3 undecidable manual P 16 39.627 50 0.17 70
IV.MMO1.EHZ. 2019-02-21T02:05:46.58 0.6 undecidable manual S 27 22.3554 50 -0.36 46
IV.GIGS.HHZ. 2019-02-21T02:05:46.07 0.3 undecidable manual P 134 42.2244 50 -0.35 67
IV.CSP1.EHZ. 2019-02-21T02:05:46.13 0.1 undecidable manual P 0 41.3253 50 -0.14 94
IV.MC2.EHZ. 2019-02-21T02:05:46.94 0.6 undecidable manual S 357 21.3675 50 0.28 47
IV.MF5.EHZ. 2019-02-21T02:05:45.84 0.3 undecidable manual P 35 36.3414 50 0.33 68
IV.SMA1.EHZ. 2019-02-21T02:05:45.20 0.6 undecidable manual S 132 14.6742 127 0.42 46
IV.CESI.HHZ. 2019-02-21T02:05:45.97 0.1 undecidable manual P 323 39.9267 50 -0.08 95
IV.TERO.HHZ. 2019-02-21T02:05:45.05 0.1 undecidable manual P 108 34.4433 50 -0.16 94
IV.LNSS.HHZ. 2019-02-21T02:05:45.78 0.6 undecidable manual S 226 18.4704 120 -0.12 49
IV.ARRO.EHZ. 2019-02-21T02:05:45.85 0.3 undecidable manual P 247 38.9277 50 -0.05 72
IV.FDMO.HHZ. 2019-02-21T02:05:45.25 0.3 undecidable manual P 345 36.4413 50 -0.27 69
IV.MTRA.HNZ. 2019-02-21T02:05:44.87 0.6 undecidable manual S 75 16.3725 124 -0.39 46
IV.T1299.EHZ. 2019-02-21T02:05:44.13 0.6 undecidable manual S 145 11.4774 133 0.2 49
IV.FEMA.HNZ. 2019-02-21T02:05:44.34 0.3 undecidable manual P 335 29.6481 50 -0.14 72
IV.NRCA.HNZ. 2019-02-21T02:05:44.20 0.6 undecidable manual S 330 14.5743 127 -0.56 44
IV.GAVE.EHZ. 2019-02-21T02:05:43.76 0.1 undecidable manual P 263 25.3524 50 -0.05 98
IV.MC2.EHZ. 2019-02-21T02:05:43.06 0.3 undecidable manual P 357 21.3675 50 -0.13 73
IV.CAMP.HHZ. 2019-02-21T02:05:43.91 0.1 undecidable manual P 140 26.4513 50 -0.07 98
IV.MMO1.EHZ. 2019-02-21T02:05:43.15 0.1 undecidable manual P 27 22.3554 50 -0.2 96
IV.RM33.EHZ. 2019-02-21T02:05:43.51 0.1 undecidable manual P 178 23.3544 50 0.01 99
IV.LNSS.HHZ. 2019-02-21T02:05:42.86 0.1 undecidable manual P 226 18.4704 120 0.1 98
IV.SMA1.EHZ. 2019-02-21T02:05:42.16 0.1 undecidable manual P 132 14.6742 127 0.05 100
IV.MTRA.HNZ. 2019-02-21T02:05:42.23 0.3 undecidable manual P 75 16.3725 124 -0.16 73
IV.T1299.EHZ. 2019-02-21T02:05:41.96 0.3 undecidable manual P 145 11.4774 133 0.34 71
IV.NRCA.HNZ. 2019-02-21T02:05:41.97 0.1 undecidable manual P 330 14.5743 127 -0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.8 0.0002575 0.24 AML other m 2019-02-21T02:05:51.32
IV.MTRA.EHE. ML:1.7 0.0004615 0.92 AML other m 2019-02-21T02:05:44.49
IV.MTRA.HNE. ML:1.7 0.000454 1.2 AML other m 2019-02-21T02:05:45.08
IV.SMA1.EHN. ML:1.4 0.0006594999999999999 0.86 AML other m 2019-02-21T02:05:46.46
IV.CAMP.HHN. ML:1.6 0.000195 0.3 AML other m 2019-02-21T02:05:48.19
IV.CAMP.HHE. ML:1.4 0.00014649999999999998 0.18 AML other m 2019-02-21T02:05:48.10
IV.MTRA.HNN. ML:1.1 0.0006255 0.36 AML other m 2019-02-21T02:05:48.39
IV.MTRA.EHN. ML:1.1 0.0005625 0.36 AML other m 2019-02-21T02:05:48.39
IV.SMA1.EHE. ML:1.6 0.000694 0.36 AML other m 2019-02-21T02:05:48.40
IV.TERO.HNN. ML:1.7 0.0001905 0.08 AML other m 2019-02-21T02:05:50.24
IV.TERO.HHN. ML:2.0 0.000422 0.08 AML other m 2019-02-21T02:05:50.28
IV.TERO.HNE. ML:1.4 0.00010350000000000001 0.68 AML other m 2019-02-21T02:05:50.19
IV.TERO.HHE. ML:1.7 0.000211 0.06 AML other m 2019-02-21T02:05:50.53
IV.FDMO.HHE. ML:1.6 0.0001705 1.88 AML other m 2019-02-21T02:05:53.99
IV.ARRO.EHE. ML:1.4 0.0000791 1.06 AML other m 2019-02-21T02:05:53.64
IV.ARRO.EHN. ML:1.4 0.00009895 0.28 AML other m 2019-02-21T02:05:54.19
IV.MOMA.HHE. ML:0.0 0.00009475 0.7 AML other m 2019-02-21T02:05:56.59
IV.MOMA.HHN. ML:0.0 0.00010224999999999999 1.86 AML other m 2019-02-21T02:05:56.01
IV.OFFI.HHN. ML:0.0 0.00023649999999999998 0.34 AML other m 2019-02-21T02:05:57.25
IV.OFFI.HHE. ML:0.0 0.0001255 0.28 AML other m 2019-02-21T02:05:58.07
IV.ASSB.HHE. ML:1.6 0.00009484999999999999 0.16 AML other m 2019-02-21T02:05:58.58
IV.ASSB.HHN. ML:1.7 0.00010235 0.2 AML other m 2019-02-21T02:05:58.76
IV.SNTG.HHE. ML:1.6 0.00008485 0.12 AML other m 2019-02-21T02:05:59.49
IV.SNTG.HHN. ML:1.6 0.00008094999999999999 0.14 AML other m 2019-02-21T02:05:59.86
IV.VCEL.EHE. ML:1.6 0.00008215 1.12 AML other m 2019-02-21T02:06:00.23
IV.EL6.EHN. ML:0.0 0.0001325 0.6 AML other m 2019-02-21T02:06:01.77
IV.ATCC.EHN. ML:1.7 0.00008035 1.06 AML other m 2019-02-21T02:06:02.06
IV.ATCC.EHE. ML:1.6 0.0000667 1.34 AML other m 2019-02-21T02:06:02.17
IV.VCEL.EHN. ML:1.6 0.0000844 0.52 AML other m 2019-02-21T02:06:02.42
IV.FOSV.EHE. ML:1.6 0.00005935 0.16 AML other m 2019-02-21T02:06:02.71
IV.EL6.EHE. ML:0.0 0.00013350000000000002 0.3 AML other m 2019-02-21T02:06:03.95
IV.ATFO.HHN. ML:1.4 0.0000297 0.9 AML other m 2019-02-21T02:06:07.44
IV.ARVD.HHN. ML:1.4 0.00003155 0.44 AML other m 2019-02-21T02:06:08.00
IV.ATFO.HHE. ML:1.4 0.0000322 0.24 AML other m 2019-02-21T02:06:08.18
IV.ARVD.HHE. ML:1.4 0.0000293 0.28 AML other m 2019-02-21T02:06:08.79
IV.NRCA.HNE. ML:0.0 0.00316 0.1 AML other m 2019-02-21T02:05:44.41
IV.NRCA.HNN. ML:0.0 0.002685 0.16 AML other m 2019-02-21T02:05:44.30
IV.NRCA.HHE. ML:0.0 0.003375 0.1 AML other m 2019-02-21T02:05:44.41
IV.GUMA.HHE. ML:0.0 0.000493 0.86 AML other m 2019-02-21T02:05:54.36
IV.GUMA.HHN. ML:0.0 0.0007880000000000001 0.72 AML other m 2019-02-21T02:05:53.10
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