Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 03-04-2019 and time 05:05:16 (Italy) in region 3 km W Acquasanta Terme (AP)

A magnitude ML 1.2 earthquake occured in region: 3 km W Acquasanta Terme (AP), on

  • 03-04-2019 03:05:16 (UTC)
  • 03-04-2019 05:05:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7690, 13.3680 at 17 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acquasanta Terme AP 4 2916 2916
Arquata del Tronto AP 6 1178 4094
Montegallo AP 9 523 4617
Valle Castellana TE 11 977 5594
Accumoli RI 13 667 6261
Roccafluvione AP 14 2010 8271
Montemonaco AP 15 604 8875
Rocca Santa Maria TE 16 537 9412
Venarotta AP 16 2066 11478
Palmiano AP 16 196 11674
Amatrice RI 17 2657 14331
Montefortino FM 20 1178 15509
Ascoli Piceno AP 20 49407 64916
Cortino TE 20 656 65572

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Teramo (54892 inhabitants)
46 Km N of L'Aquila (69753 inhabitants)
58 Km E of Foligno (57155 inhabitants)
63 Km E of Terni (111501 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
77 Km W of Pescara (121014 inhabitants)
80 Km NW of Chieti (51815 inhabitants)
88 Km E of Perugia (166134 inhabitants)
95 Km S of Ancona (100861 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 1.2 2019-04-03
03:05:16		 42.7687 13.3678 17 2019-04-03
03:10:23		 Sala Sismica INGV-Roma 67212831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-03 03:05:16 ± 0.12
Latitude 42.7687 ± 0.0036
Longitude 13.3678 ± 0.0049
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 67212831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 396
Semi-minor axis of confidence ellipse (meter) 256
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29228
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 67212831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-03 03:10:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-04-03T03:05:36.20 3.0 undecidable manual S -1.49 0
IV.RM33.EHZ. 2019-04-03T03:05:27.50 0.3 undecidable manual S 204 31.4463 106 0.22 69
IV.LNSS.HHZ. 2019-04-03T03:05:27.80 0.3 undecidable manual S 236 32.4453 105 0.26 68
IV.MF5.EHZ. 2019-04-03T03:05:26.34 0.3 undecidable manual S 17 25.4523 111 0.58 64
IV.CAMP.HHZ. 2019-04-03T03:05:25.88 0.3 undecidable manual S 173 26.0517 111 -0.04 73
IV.TERO.HNZ. 2019-04-03T03:05:25.63 0.6 undecidable manual S 130 25.1526 112 -0.06 48
IV.MC2.EHZ. 2019-04-03T03:05:24.99 0.3 undecidable manual S 317 21.4674 117 0.19 71
IV.NRCA.HHZ. 2019-04-03T03:05:24.69 0.3 undecidable manual S 289 21.867 116 -0.2 70
IV.T1299.EHZ. 2019-04-03T03:05:23.97 0.3 undecidable manual S 205 16.4724 126 0.31 69
IV.MMO1.EHZ. 2019-04-03T03:05:23.04 0.1 undecidable manual S 347 14.874 129 -0.28 93
IV.SMA1.EHZ. 2019-04-03T03:05:23.31 0.3 undecidable manual S 190 15.5733 128 -0.15 72
IV.RM33.EHZ. 2019-04-03T03:05:22.56 0.1 undecidable manual P 204 31.4463 106 -0.05 96
IV.LNSS.HHZ. 2019-04-03T03:05:22.65 0.3 undecidable manual P 236 32.4453 105 -0.11 71
IV.MTRA.EHZ. 2019-04-03T03:05:21.49 0.3 undecidable manual S 120 2.6973 169 -0.12 74
IV.TERO.HNZ. 2019-04-03T03:05:21.49 0.6 undecidable manual P 130 25.1526 112 -0.2 47
IV.NRCA.HHZ. 2019-04-03T03:05:21.02 0.1 undecidable manual P 289 21.867 116 -0.21 94
IV.MC2.EHZ. 2019-04-03T03:05:21.25 0.3 undecidable manual P 317 21.4674 117 0.07 72
IV.CAMP.HHZ. 2019-04-03T03:05:21.68 0.3 undecidable manual P 173 26.0517 111 -0.14 71
IV.MF5.EHZ. 2019-04-03T03:05:21.93 0.3 undecidable manual P 17 25.4523 111 0.2 70
IV.SMA1.EHZ. 2019-04-03T03:05:20.44 0.1 undecidable manual P 190 15.5733 128 0.04 98
IV.T1299.EHZ. 2019-04-03T03:05:20.66 0.3 undecidable manual P 205 16.4724 126 0.14 72
IV.MMO1.EHZ. 2019-04-03T03:05:20.13 0.1 undecidable manual P 347 14.874 129 -0.19 95
IV.MTRA.EHZ. 2019-04-03T03:05:19.29 0.1 undecidable manual P 120 2.6973 169 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.2 0.0001555 0.8 AML other m 2019-04-03T03:05:21.58
IV.MTRA.HNE. ML:1.6 0.000418 0.06 AML other m 2019-04-03T03:05:21.59
IV.MTRA.EHE. ML:1.6 0.00042249999999999997 0.08 AML other m 2019-04-03T03:05:21.59
IV.MTRA.HNN. ML:1.4 0.000249 1.12 AML other m 2019-04-03T03:05:22.06
IV.SMA1.EHE. ML:1.2 0.00011499999999999999 0.14 AML other m 2019-04-03T03:05:23.68
IV.SMA1.EHN. ML:1.2 0.0001285 0.32 AML other m 2019-04-03T03:05:23.79
IV.NRCA.HHE. ML:1.2 0.0000868 0.18 AML other m 2019-04-03T03:05:24.75
IV.NRCA.HHN. ML:1.0 0.0000567 1.58 AML other m 2019-04-03T03:05:25.91
IV.RM33.EHN. ML:1.0 0.00003855 0.28 AML other m 2019-04-03T03:05:27.88
IV.RM33.EHE. ML:1.1 0.00005015 1.4 AML other m 2019-04-03T03:05:27.08
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