Earthquake with magnitude of ML 1.8 on date 04-04-2019 and time 12:00:35 (Italy) in region 2 km E Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 2 km E Accumoli (RI), on

  • 04-04-2019 10:00:35 (UTC)
  • 04-04-2019 12:00:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7, 13.28 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
Arquata del Tronto AP 9 1178 4502
Cittareale RI 13 482 4984
Acquasanta Terme AP 14 2916 7900
Montegallo AP 17 523 8423
Campotosto AQ 17 542 8965
Norcia PG 18 4957 13922
Valle Castellana TE 19 977 14899
Montereale AQ 19 2581 17480
Capitignano AQ 20 665 18145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
40 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 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
Rev 1000 ML 1.8 2019-04-04
10:00:35
42.7 13.28 11 2019-08-22
08:25:11
Bollettino Sismico Italiano INGV 70824761
Rev 100 ML 1.8 2019-04-04
10:00:35
42.7 13.28 12 2019-04-04
10:10:41
Sala Sismica INGV-Roma 67243621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-04 10:00:35 ± 0.06
Latitude 42.70 ± 0.00
Longitude 13.28 ± 0.00
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 70824761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 418
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.51351
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 70824761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-23 12:08:01

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 67243621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-04 10:10:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2019-04-04T10:00:50.56 0.6 undecidable manual S 253 0.3921 50 0.41 45
IV.GUMA.HHZ. 2019-04-04T10:00:50.30 0.6 undecidable manual S 7 0.3687 50 0.85 39
IV.CSP1.EHZ. 2019-04-04T10:00:50.47 0.6 undecidable manual S 353 0.3993 50 0.13 48
IV.FDMO.HHZ. 2019-04-04T10:00:49.37 0.6 undecidable manual S 338 0.3669 50 -0.02 50
IV.MF5.EHZ. 2019-04-04T10:00:48.75 1.0 undecidable manual S 25 0.3211 50 0.71 21
IV.GIGS.HHZ. 2019-04-04T10:00:47.86 0.3 undecidable manual S 138 0.3265 50 -0.34 70
IV.GAVE.EHZ. 2019-04-04T10:00:46.71 0.6 undecidable manual S 269 0.2797 50 -0.1 50
IV.VCEL.EHZ. 2019-04-04T10:00:46.84 0.6 undecidable manual P 126 0.5135 50 0.62 42
IV.TERO.HHZ. 2019-04-04T10:00:45.77 0.3 undecidable manual S 107 0.2527 50 -0.22 73
IV.MC2.EHZ. 2019-04-04T10:00:45.08 0.3 undecidable manual S 344 0.2248 50 -0.09 75
IV.GUMA.HHZ. 2019-04-04T10:00:44.11 0.3 undecidable manual P 7 0.3687 50 0.36 69
IV.RM33.EHZ. 2019-04-04T10:00:44.19 0.3 undecidable manual S 193 0.1925 50 -0.02 77
IV.CSP1.EHZ. 2019-04-04T10:00:44.17 0.3 undecidable manual P 353 0.3993 50 -0.09 73
IV.LNSS.HNZ. 2019-04-04T10:00:44.34 0.6 undecidable manual S 242 0.1961 50 0.01 51
IV.MMO1.EHZ. 2019-04-04T10:00:44.34 0.6 undecidable manual S 11 0.2068 50 -0.3 48
IV.ARRO.EHZ. 2019-04-04T10:00:44.07 0.3 undecidable manual P 253 0.3921 50 -0.08 73
IV.FDMO.HHZ. 2019-04-04T10:00:43.28 0.3 undecidable manual P 338 0.3669 50 -0.43 68
IV.MF5.EHZ. 2019-04-04T10:00:43.34 0.3 undecidable manual P 25 0.3211 50 0.41 69
IV.CAMP.HHZ. 2019-04-04T10:00:43.81 0.6 undecidable manual S 148 0.188 117 -0.26 49
IV.NRCA.HHZ. 2019-04-04T10:00:43.32 0.3 undecidable manual S 319 0.1817 118 -0.52 69
IV.GIGS.HHZ. 2019-04-04T10:00:42.78 0.3 undecidable manual P 138 0.3265 50 -0.24 72
IV.GAVE.EHZ. 2019-04-04T10:00:42.15 0.3 undecidable manual P 269 0.2797 50 -0.07 75
IV.MC2.EHZ. 2019-04-04T10:00:41.26 0.3 undecidable manual P 344 0.2248 50 -0.01 77
IV.MTRA.EHZ. 2019-04-04T10:00:41.30 0.3 undecidable manual S 56 0.1079 132 -0.2 75
IV.TERO.HHZ. 2019-04-04T10:00:41.57 0.3 undecidable manual P 107 0.2527 50 -0.18 74
IV.CAMP.HHZ. 2019-04-04T10:00:40.26 0.3 undecidable manual P 148 0.188 117 -0.38 71
IV.MMO1.EHZ. 2019-04-04T10:00:40.97 0.6 undecidable manual P 11 0.2068 50 0 51
IV.SMA1.EHZ. 2019-04-04T10:00:40.74 0.3 undecidable manual S 146 0.0791 140 0.01 79
IV.NRCA.HHZ. 2019-04-04T10:00:40.36 0.1 undecidable manual P 319 0.1817 118 -0.15 100
IV.RM33.EHZ. 2019-04-04T10:00:40.80 0.3 undecidable manual P 193 0.1925 50 0.08 76
IV.LNSS.HNZ. 2019-04-04T10:00:40.81 0.3 undecidable manual P 242 0.1961 50 0.02 77
IV.T1299.HNZ. 2019-04-04T10:00:40.65 0.3 undecidable manual S 175 0.0621 147 0.31 74
IV.SMA1.EHZ. 2019-04-04T10:00:39.03 0.3 undecidable manual P 146 0.0791 140 0.32 74
IV.MTRA.EHZ. 2019-04-04T10:00:39.26 0.3 undecidable manual P 56 0.1079 132 0.11 77
IV.T1299.HNZ. 2019-04-04T10:00:38.96 0.3 undecidable manual P 175 0.0621 147 0.48 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:2 0.0014646025 1.8208 AML other m 2019-04-04T10:00:40.92
IV.SMA1.EHE. ML:1.9 0.00107662735 0.1152 AML other m 2019-04-04T10:00:41.18
IV.MTRA.HNN. ML:2.2 0.001655 0.14 AML other m 2019-04-04T10:00:41.36
IV.MTRA.EHE. ML:2.4 0.00259 0.32 AML other m 2019-04-04T10:00:41.36
IV.MTRA.HNE. ML:2.4 0.00262 0.44 AML other m 2019-04-04T10:00:41.36
IV.RM33.HNN. ML:1.6 0.00027904445 0.2624 AML other m 2019-04-04T10:00:44.25
IV.RM33.HNE. ML:1.8 0.00038007425 0.1152 AML other m 2019-04-04T10:00:44.83
IV.RM33.EHE. ML:1.8 0.0003835 0.12 AML other m 2019-04-04T10:00:44.83
IV.NRCA.HHE. ML:1.8 0.0005434921 1.8592 AML other m 2019-04-04T10:00:44.04
IV.NRCA.HNE. ML:1.8 0.00052168175 1.8656 AML other m 2019-04-04T10:00:44.04
IV.NRCA.HHN. ML:1.7 0.0003592902 1.84 AML other m 2019-04-04T10:00:45.03
IV.NRCA.HNN. ML:1.6 0.00029327085 0.1088 AML other m 2019-04-04T10:00:45.03
IV.RM33.EHN. ML:1.7 0.000311 1.04 AML other m 2019-04-04T10:00:45.22
IV.TERO.HHN. ML:1.9 0.0003745 0.08 AML other m 2019-04-04T10:00:46.19
IV.TERO.HNN. ML:1.4 0.0001440499 0.0768 AML other m 2019-04-04T10:00:46.15
IV.TERO.HNE. ML:1.5 0.0001680092 0.1536 AML other m 2019-04-04T10:00:46.28
IV.TERO.HHE. ML:1.8 0.000354 0.72 AML other m 2019-04-04T10:00:46.60
IV.GAVE.HNE. ML:1.9 0.0003412445 0.16 AML other m 2019-04-04T10:00:47.28
IV.GIGS.HHE. ML:1 3.7047865E-5 0.1408 AML other m 2019-04-04T10:00:47.88
IV.GIGS.HHN. ML:1 3.2860185E-5 0.1792 AML other m 2019-04-04T10:00:47.98
IV.GAVE.EHN. ML:1.9 0.0003805 0.14 AML other m 2019-04-04T10:00:48.03
IV.GAVE.EHE. ML:1.8 0.00031731815 0.16 AML other m 2019-04-04T10:00:48.39
IV.MF5.EHE. ML:1.8 0.00024188035 0.32 AML other m 2019-04-04T10:00:49.51
IV.MF5.EHN. ML:1.8 0.0002255 0.38 AML other m 2019-04-04T10:00:49.94
IV.GUMA.HHE. ML:0 0.0004915 0.26 AML other m 2019-04-04T10:00:50.62
IV.GUMA.HHN. ML:2 0.00036 0.4 AML other m 2019-04-04T10:00:50.68
IV.GUMA.HNE. ML:2.1 0.0003958803 0.288 AML other m 2019-04-04T10:00:50.74
IV.FDMO.HHN. ML:1.2 6.1043665E-5 0.2816 AML other m 2019-04-04T10:00:51.30
IV.ARRO.EHN. ML:1.5 0.00010361953 1.776 AML other m 2019-04-04T10:00:51.02
IV.ARRO.EHE. ML:1.5 0.000103026965 0.16 AML other m 2019-04-04T10:00:51.92
IV.FDMO.HHE. ML:1.1 4.4091525E-5 0.1792 AML other m 2019-04-04T10:00:53.43
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