Earthquake with magnitude of ML 0.8 on date 12-04-2019 and time 00:16:03 (Italy) in region 7 km NW Arquata del Tronto (AP)

A magnitude ML 0.8 earthquake occured in region: 7 km NW Arquata del Tronto (AP), on

  • 11-04-2019 22:16:03 (UTC)
  • 12-04-2019 00:16:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8060, 13.2200 at 14 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
Arquata del Tronto AP 7 1178 1178
Montegallo AP 10 523 1701
Norcia PG 10 4957 6658
Castelsantangelo sul Nera MC 11 281 6939
Accumoli RI 13 667 7606
Montemonaco AP 14 604 8210
Acquasanta Terme AP 16 2916 11126
Preci PG 17 724 11850
Ussita MC 17 444 12294
Visso MC 18 1107 13401
Montefortino FM 18 1178 14579
Cascia PG 19 3217 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
53 Km N of L'Aquila (69753 inhabitants)
54 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
93 Km NW of Chieti (51815 inhabitants)
93 Km S of Ancona (100861 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 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
Reviewed
Rev100
ML 0.8 2019-04-11
22:16:03
42.8062 13.2202 14 2019-04-11
22:20:29
Sala Sismica INGV-Roma 67475991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-11 22:16:03 ± 0.17
Latitude 42.8062 ± 0.0063
Longitude 13.2202 ± 0.0086
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 67475991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 746
Semi-minor axis of confidence ellipse (meter) 287
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25271
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 67475991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-11 22:20:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2019-04-11T22:16:14.07 0.1 undecidable manual S 44 28.0497 100 0.56 85
IV.FDMO.HHZ. 2019-04-11T22:16:13.21 0.1 undecidable manual S 337 27.75 100 -0.22 94
IV.SMA1.EHZ. 2019-04-11T22:16:11.93 0.3 undecidable manual S 154 21.6672 105 0.09 74
IV.MTRA.EHZ. 2019-04-11T22:16:10.09 0.1 undecidable manual S 111 15.3735 117 -0.19 99
IV.TERO.HHZ. 2019-04-11T22:16:10.32 3.0 undecidable manual P -0.09 0
IV.CESI.HHZ. 2019-04-11T22:16:10.15 3.0 positive manual P 0.03 0
IV.NRCA.HHZ. 2019-04-11T22:16:09.26 0.1 undecidable manual S 289 9.0798 137 0.31 97
IV.MMO1.EHZ. 2019-04-11T22:16:09.61 0.1 undecidable manual S 40 13.4754 122 -0.24 98
IV.MF5.EHZ. 2019-04-11T22:16:09.34 1.0 negative manual P 44 28.0497 100 0.06 24
IV.SMA1.EHZ. 2019-04-11T22:16:08.48 1.0 negative manual P 154 21.6672 105 0.15 24
IV.FDMO.HHZ. 2019-04-11T22:16:08.90 0.1 undecidable manual P 337 27.75 100 -0.34 92
IV.MC2.EHZ. 2019-04-11T22:16:07.07 0.1 undecidable manual P 348 11.9769 127 0.1 100
IV.MTRA.EHZ. 2019-04-11T22:16:07.28 0.1 undecidable manual P 111 15.3735 117 -0.14 99
IV.MMO1.EHZ. 2019-04-11T22:16:06.98 0.1 undecidable manual P 40 13.4754 122 -0.19 98
IV.NRCA.HHZ. 2019-04-11T22:16:06.84 0.1 undecidable manual P 289 9.0798 137 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.8 0.00006725000000000001 0.1 AML other m 2019-04-11T22:16:09.56
IV.NRCA.HHN. ML:0.9 0.0000873 0.34 AML other m 2019-04-11T22:16:09.45
IV.MTRA.EHE. ML:0.8 0.00005035 0.18 AML other m 2019-04-11T22:16:10.34
IV.MTRA.EHN. ML:0.6 0.000035000000000000004 0.82 AML other m 2019-04-11T22:16:10.55
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