Earthquake with magnitude of ML 0.5 on date 31-03-2019 and time 23:41:32 (UTC) in region 2 km W Accumoli (RI)

A magnitude ML 0.5 earthquake occured in region: 2 km W Accumoli (RI), on

  • 31-03-2019 23:41:32 (UTC)
  • 01-04-2019 01:41:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6990, 13.2240 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 2 667 667
Amatrice RI 9 2657 3324
Arquata del Tronto AP 10 1178 4502
Cittareale RI 10 482 4984
Norcia PG 15 4957 9941
Acquasanta Terme AP 17 2916 12857
Cascia PG 17 3217 16074
Montegallo AP 18 523 16597
Montereale AQ 20 2581 19178
Campotosto AQ 20 542 19720

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
41 Km NW of L'Aquila (69753 inhabitants)
50 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
89 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
Reviewed
Rev100
ML 0.5 2019-03-31
23:41:32
42.6993 13.2238 11 2019-03-31
23:54:53
Sala Sismica INGV-Roma 67133251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-31 23:41:32 ± 0.06
Latitude 42.6993 ± 0.0036
Longitude 13.2238 ± 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 67133251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 456
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28958
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 67133251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-31 23:54:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-03-31T23:41:43.11 0.3 undecidable manual S 105 32.1456 50 -0.34 69
IV.MMO1.EHZ. 2019-03-31T23:41:41.33 0.3 undecidable manual S 21 23.754 50 0.14 73
IV.RM33.EHZ. 2019-03-31T23:41:40.38 0.3 undecidable manual S 182 21.1677 50 -0.12 74
IV.NRCA.HHZ. 2019-03-31T23:41:39.27 0.1 undecidable manual S 329 17.3715 122 -0.22 97
IV.MTRA.EHZ. 2019-03-31T23:41:38.80 0.3 undecidable manual S 66 15.4734 125 -0.14 74
IV.TERO.HHZ. 2019-03-31T23:41:38.86 0.1 undecidable manual P 105 32.1456 50 0.09 97
IV.RM33.EHZ. 2019-03-31T23:41:37.11 0.1 undecidable manual P 182 21.1677 50 0.04 100
IV.MMO1.EHZ. 2019-03-31T23:41:37.58 0.3 undecidable manual P 21 23.754 50 0.11 73
IV.SMA1.EHZ. 2019-03-31T23:41:37.99 0.3 undecidable manual S 130 11.877 133 0.01 76
IV.MTRA.EHZ. 2019-03-31T23:41:36.24 0.1 undecidable manual P 66 15.4734 125 0.08 100
IV.NRCA.HHZ. 2019-03-31T23:41:36.55 0.1 undecidable manual P 329 17.3715 122 0.06 100
IV.SMA1.EHZ. 2019-03-31T23:41:35.81 0.3 undecidable manual P 130 11.877 133 0.2 74
IV.ASSB.HHZ. 2019-03-31T23:41:29.55 3.0 negative manual P 0.6 0
IV.MURB.HHZ. 2019-03-31T23:41:29.73 3.0 undecidable manual P -0.53 0
IV.ATCC.EHZ. 2019-03-31T23:41:28.06 3.0 undecidable manual P -0.45 0
IV.FOSV.EHZ. 2019-03-31T23:41:28.01 3.0 undecidable manual P 0.44 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.0001275 0.14 AML other m 2019-03-31T23:41:39.56
IV.ASSB.HHN. ML:0.9 0.00001565143 0.2816 AML other m 2019-03-31T23:41:32.83
IV.SMA1.EHE. ML:0.3 0.000020438345 1.4976 AML other m 2019-03-31T23:41:38.21
IV.SMA1.EHN. ML:0.3 0.000021174045000000004 0.1024 AML other m 2019-03-31T23:41:38.94
IV.NRCA.HHN. ML:0.7 0.000043840945 0.1024 AML other m 2019-03-31T23:41:39.36
IV.RM33.EHE. ML:0.2 0.0000119021155 2.0864 AML other m 2019-03-31T23:41:40.88
IV.RM33.EHN. ML:0.3 0.000015758895000000002 1.7536 AML other m 2019-03-31T23:41:40.57
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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