Earthquake with magnitude of ML 1.8 on date 21-02-2019 and time 03:05:38 (Italy) in region 5 km NW Accumoli (RI)

A magnitude ML 1.8 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) 42.72, 13.2 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 5 667 667
Arquata del Tronto AP 10 1178 1845
Cittareale RI 12 482 2327
Amatrice RI 12 2657 4984
Norcia PG 12 4957 9941
Cascia PG 16 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)
49 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)
87 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
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 1.8 2019-02-21
02:05:38
42.72 13.2 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 ± 0.05
Latitude 42.72 ± 0.00
Longitude 13.20 ± 0.00
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 65749231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 164
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.56927
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 17
Magnitude information

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 Takeoff_angle Residual Weight
IT.VNF1.HGZ. 2019-02-21T02:06:23.24 3.0 undecidable manual S 0.22 0
IV.ARVD.HHZ. 2019-02-21T02:06:06.82 3.0 undecidable manual S 0.22 0
IV.FOSV.EHZ. 2019-02-21T02:06:01.80 3.0 undecidable manual S -0.01 0
IV.MPAG.EHZ. 2019-02-21T02:05:56.90 3.0 undecidable manual P -0.36 0
IV.FRON.EHZ. 2019-02-21T02:05:54.99 3.0 positive manual P -0.5 0
IV.INTR.HHZ. 2019-02-21T02:05:54.78 3.0 positive manual P -1.22 0
IV.ATFO.HHZ. 2019-02-21T02:05:53.92 3.0 negative manual P -0.12 0
IV.SSFR.HHZ. 2019-02-21T02:05:53.49 3.0 negative manual P -0.31 0
IV.MURB.HHZ. 2019-02-21T02:05:52.80 3.0 negative manual P -0.13 0
IV.CSP1.EHZ. 2019-02-21T02:05:52.09 0.6 undecidable manual S 0 0.3723 50 0.15 47
IV.GUMA.HHZ. 2019-02-21T02:05:52.35 0.6 undecidable manual S 16 0.3561 50 0.88 37
IV.GIGS.HHZ. 2019-02-21T02:05:51.92 0.6 undecidable manual S 134 0.3804 50 -0.25 46
IV.FOSV.EHZ. 2019-02-21T02:05:51.25 3.0 undecidable manual P -0.3 0
IV.CESI.HHZ. 2019-02-21T02:05:51.53 0.6 undecidable manual S 323 0.3597 50 -0.04 48
IV.ATCC.EHZ. 2019-02-21T02:05:50.67 3.0 undecidable manual P -0.15 0
IV.EL6.EHZ. 2019-02-21T02:05:50.45 3.0 negative manual P -0.34 0
IV.FDMO.HHZ. 2019-02-21T02:05:50.59 0.6 undecidable manual S 345 0.3283 50 -0.04 48
IV.VCEL.EHZ. 2019-02-21T02:05:50.11 3.0 negative manual P -0.26 0
IV.SNTG.HHZ. 2019-02-21T02:05:49.48 0.6 negative manual P 340 0.5693 50 -0.09 45
IV.TERO.HHZ. 2019-02-21T02:05:49.91 0.6 undecidable manual S 108 0.3094 50 -0.17 47
IV.CESX.HHZ. 2019-02-21T02:05:49.40 3.0 positive manual P 1.46 0
IV.ASSB.HHZ. 2019-02-21T02:05:48.64 3.0 negative manual P -0.15 0
IV.OFFI.HHZ. 2019-02-21T02:05:48.05 3.0 positive manual P 0.65 0
IV.FAGN.HHZ. 2019-02-21T02:05:48.64 3.0 positive manual P -0.96 0
IV.MOMA.HHZ. 2019-02-21T02:05:48.38 3.0 positive manual P 0.37 0
IV.CAMP.HHZ. 2019-02-21T02:05:47.83 0.6 undecidable manual S 140 0.2374 50 -0.11 48
IV.FIAM.HHZ. 2019-02-21T02:05:47.70 3.0 positive manual P -0.29 0
IV.RM33.EHZ. 2019-02-21T02:05:47.11 0.6 undecidable manual S 178 0.2104 50 -0.03 49
IV.GAVE.EHZ. 2019-02-21T02:05:47.66 0.6 undecidable manual S 263 0.2284 50 -0.02 49
IV.GIGS.HHZ. 2019-02-21T02:05:46.07 0.3 undecidable manual P 134 0.3804 50 -0.27 68
IV.MC2.EHZ. 2019-02-21T02:05:46.94 0.6 undecidable manual S 357 0.1925 50 0.34 47
IV.GUMA.HHZ. 2019-02-21T02:05:46.18 0.3 undecidable manual P 16 0.3561 50 0.24 69
IV.MMO1.EHZ. 2019-02-21T02:05:46.58 0.6 undecidable manual S 27 0.2014 50 -0.29 47
IV.CSP1.EHZ. 2019-02-21T02:05:46.13 0.1 undecidable manual P 0 0.3723 50 -0.08 95
IV.FDMO.HHZ. 2019-02-21T02:05:45.25 0.3 undecidable manual P 345 0.3283 50 -0.2 70
IV.MF5.EHZ. 2019-02-21T02:05:45.84 0.3 undecidable manual P 35 0.3274 50 0.4 67
IV.CESI.HHZ. 2019-02-21T02:05:45.97 0.1 undecidable manual P 323 0.3597 50 -0.02 96
IV.SMA1.EHZ. 2019-02-21T02:05:45.20 0.6 undecidable manual S 132 0.1313 126 0.53 45
IV.ARRO.EHZ. 2019-02-21T02:05:45.94 3.0 positive manual P 0.12 0
IV.TERO.HHZ. 2019-02-21T02:05:45.05 0.1 undecidable manual P 108 0.3094 50 -0.08 96
IV.LNSS.HHZ. 2019-02-21T02:05:45.78 0.6 undecidable manual S 226 0.1673 120 -0.04 50
IV.NRCA.HNZ. 2019-02-21T02:05:44.20 0.6 undecidable manual S 330 0.1313 126 -0.48 46
IV.MTRA.HNZ. 2019-02-21T02:05:44.87 0.6 undecidable manual S 75 0.1466 124 -0.28 48
IV.RM33.EHZ. 2019-02-21T02:05:43.51 0.1 undecidable manual P 178 0.2104 50 0.08 98
IV.GAVE.EHZ. 2019-02-21T02:05:43.76 0.1 undecidable manual P 263 0.2284 50 0.01 99
IV.MC2.EHZ. 2019-02-21T02:05:43.06 0.3 undecidable manual P 357 0.1925 50 -0.07 74
IV.CAMP.HHZ. 2019-02-21T02:05:43.91 0.1 undecidable manual P 140 0.2374 50 0.01 99
IV.MMO1.EHZ. 2019-02-21T02:05:43.15 0.1 undecidable manual P 27 0.2014 50 -0.13 97
IV.MTRA.HNZ. 2019-02-21T02:05:42.23 0.3 undecidable manual P 75 0.1466 124 -0.06 75
IV.LNSS.HHZ. 2019-02-21T02:05:42.86 0.1 undecidable manual P 226 0.1673 120 0.18 97
IV.SMA1.EHZ. 2019-02-21T02:05:42.16 0.1 undecidable manual P 132 0.1313 126 0.15 98
IV.NRCA.HNZ. 2019-02-21T02:05:41.97 0.1 undecidable manual P 330 0.1313 126 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.5 0.003005 0.08 AML other m 2019-02-21T02:05:44.30
IV.NRCA.HNN. ML:2.4 0.002685 0.16 AML other m 2019-02-21T02:05:44.30
IV.NRCA.HNE. ML:2.5 0.00316 0.1 AML other m 2019-02-21T02:05:44.41
IV.NRCA.HHE. ML:2.6 0.003375 0.1 AML other m 2019-02-21T02:05:44.41
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.LNSS.HHN. ML:2.3 0.001725 0.34 AML other m 2019-02-21T02:05:46.18
IV.LNSS.HNN. ML:2.3 0.00162 0.34 AML other m 2019-02-21T02:05:46.18
IV.SMA1.EHN. ML:1.8 0.0006595 0.86 AML other m 2019-02-21T02:05:46.46
IV.LNSS.HHE. ML:2.4 0.001975 0.12 AML other m 2019-02-21T02:05:46.80
IV.LNSS.HNE. ML:2.4 0.001815 1.28 AML other m 2019-02-21T02:05:46.80
IV.RM33.HNN. ML:2 0.0006995 0.84 AML other m 2019-02-21T02:05:47.74
IV.RM33.EHN. ML:2 0.000707 0.14 AML other m 2019-02-21T02:05:47.74
IV.RM33.HNE. ML:2 0.000746 0.12 AML other m 2019-02-21T02:05:47.76
IV.RM33.EHE. ML:2.1 0.000755 0.12 AML other m 2019-02-21T02:05:47.83
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 0.0001465 0.18 AML other m 2019-02-21T02:05:48.10
IV.MTRA.EHN. ML:1.8 0.0005625 0.36 AML other m 2019-02-21T02:05:48.39
IV.MTRA.HNN. ML:1.8 0.0006255 0.36 AML other m 2019-02-21T02:05:48.39
IV.SMA1.EHE. ML:1.8 0.000694 0.36 AML other m 2019-02-21T02:05:48.40
IV.GAVE.EHE. ML:2.1 0.0007345 0.78 AML other m 2019-02-21T02:05:48.88
IV.GAVE.EHN. ML:2.1 0.000794 0.22 AML other m 2019-02-21T02:05:48.59
IV.TERO.HHN. ML:2 0.000422 0.08 AML other m 2019-02-21T02:05:50.28
IV.TERO.HNN. ML:1.7 0.0001905 0.08 AML other m 2019-02-21T02:05:50.24
IV.TERO.HNE. ML:1.4 0.0001035 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.HHN. ML:1.8 0.0002575 0.24 AML other m 2019-02-21T02:05:51.32
IV.CESI.HHN. ML:2.1 0.0004635 1.68 AML other m 2019-02-21T02:05:52.14
IV.CESI.HHE. ML:1.8 0.0002435 0.96 AML other m 2019-02-21T02:05:52.46
IV.GIGS.HHE. ML:1.2 5.01E-5 0.62 AML other m 2019-02-21T02:05:52.20
IV.GIGS.HHN. ML:1.3 6.2E-5 1.38 AML other m 2019-02-21T02:05:52.20
IV.FDMO.HHE. ML:1.6 0.0001705 1.88 AML other m 2019-02-21T02:05:53.99
IV.GUMA.HHN. ML:2.3 0.000788 0.72 AML other m 2019-02-21T02:05:53.10
IV.ARRO.EHE. ML:1.4 7.91E-5 1.06 AML other m 2019-02-21T02:05:53.64
IV.ARRO.EHN. ML:1.4 9.895E-5 0.28 AML other m 2019-02-21T02:05:54.19
IV.GUMA.HHE. ML:2.2 0.000493 0.86 AML other m 2019-02-21T02:05:54.36
IV.FIAM.HHN. ML:1.2 4.62E-5 0.78 AML other m 2019-02-21T02:05:55.61
IV.FIAM.HHE. ML:1.2 4.695E-5 0.78 AML other m 2019-02-21T02:05:55.88
IV.MOMA.HHE. ML:1.6 9.475E-5 0.7 AML other m 2019-02-21T02:05:56.59
IV.MOMA.HHN. ML:1.6 0.00010225 1.86 AML other m 2019-02-21T02:05:56.01
IV.OFFI.HHN. ML:1.9 0.0002365 0.34 AML other m 2019-02-21T02:05:57.25
IV.OFFI.HHE. ML:1.6 0.0001255 0.28 AML other m 2019-02-21T02:05:58.07
IV.ASSB.HHE. ML:1.6 9.485E-5 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 8.485E-5 0.12 AML other m 2019-02-21T02:05:59.49
IV.SNTG.HHN. ML:1.6 8.095E-5 0.14 AML other m 2019-02-21T02:05:59.86
IV.FAGN.HHE. ML:2 0.0001895 0.34 AML other m 2019-02-21T02:06:00.78
IV.VCEL.EHE. ML:1.6 8.215E-5 1.12 AML other m 2019-02-21T02:06:00.23
IV.FAGN.HHN. ML:1.9 0.0001475 0.4 AML other m 2019-02-21T02:06:01.89
IV.EL6.EHN. ML:1.9 0.0001325 0.6 AML other m 2019-02-21T02:06:01.77
IV.ATCC.EHN. ML:1.7 8.035E-5 1.06 AML other m 2019-02-21T02:06:02.06
IV.ATCC.EHE. ML:1.6 6.67E-5 1.34 AML other m 2019-02-21T02:06:02.17
IV.VCEL.EHN. ML:1.6 8.44E-5 0.52 AML other m 2019-02-21T02:06:02.42
IV.FOSV.EHE. ML:1.6 5.935E-5 0.16 AML other m 2019-02-21T02:06:02.71
IV.EL6.EHE. ML:1.9 0.0001335 0.3 AML other m 2019-02-21T02:06:03.95
IV.MURB.HHE. ML:2 0.000124 0.6 AML other m 2019-02-21T02:06:05.78
IV.MURB.HHN. ML:1.8 9.185E-5 0.4 AML other m 2019-02-21T02:06:06.03
IV.FOSV.EHN. ML:1.6 5.51E-5 1.6 AML other m 2019-02-21T02:06:06.04
IV.SSFR.HHN. ML:2 0.0001215 0.24 AML other m 2019-02-21T02:06:07.17
IV.ATFO.HHN. ML:1.4 2.97E-5 0.9 AML other m 2019-02-21T02:06:07.44
IV.ARVD.HHN. ML:1.4 3.155E-5 0.44 AML other m 2019-02-21T02:06:08.00
IV.ATFO.HHE. ML:1.4 3.22E-5 0.24 AML other m 2019-02-21T02:06:08.18
IV.ARVD.HHE. ML:1.4 2.93E-5 0.28 AML other m 2019-02-21T02:06:08.79
IV.SSFR.HHE. ML:2 0.0001315 0.22 AML other m 2019-02-21T02:06:08.98
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