Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 08-04-2020 and time 04:12:30 (UTC) in region 3 km W Montereale (AQ)

A magnitude ML 1.4 earthquake occured in region: 3 km W Montereale (AQ), on

  • 08-04-2020 04:12:30 (UTC)
  • 08-04-2020 06:12:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5120, 13.2090 at 16 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montereale AQ 3 2581 2581
Cagnano Amiterno AQ 6 1369 3950
Borbona RI 6 617 4567
Capitignano AQ 8 665 5232
Barete AQ 9 737 5969
Posta RI 9 694 6663
Pizzoli AQ 11 4326 10989
Cittareale RI 12 482 11471
Campotosto AQ 14 542 12013
Micigliano RI 14 127 12140
Amatrice RI 15 2657 14797
Antrodoco RI 15 2588 17385
Scoppito AQ 16 3727 21112
Borgo Velino RI 17 972 22084
Castel Sant'Angelo RI 20 1308 23392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of L'Aquila (69753 inhabitants)
44 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
81 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
98 Km NE of Velletri (53303 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 1.4 2020-04-08
04:12:30		 42.5125 13.2088 16 2020-04-08
05:25:10		 Sala Sismica INGV-Roma 78006271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-08 04:12:30 ± 0.09
Latitude 42.5125 ± 0.0045
Longitude 13.2088 ± 0.0049
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78006271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 319
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55218
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:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 78006271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-08 05:25:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-04-08T04:12:50.28 0.6 undecidable manual S 302 61.2942 96 0.4 42
IV.MF5.EHZ. 2020-04-08T04:12:49.25 0.3 undecidable manual S 21 56.499 96 0.64 57
IV.FDMO.HHZ. 2020-04-08T04:12:49.47 0.3 undecidable manual S 350 58.9965 96 0.22 65
IV.RMP.HHZ. 2020-04-08T04:12:46.85 3.0 undecidable manual P 0.05 0
IV.TERO.HHZ. 2020-04-08T04:12:42.60 0.3 undecidable manual S 69 34.5432 102 -0.2 70
IV.NRCA.HHZ. 2020-04-08T04:12:42.93 0.3 undecidable manual S 348 36.4413 101 -0.38 67
IV.GIGS.HHZ. 2020-04-08T04:12:41.60 0.3 undecidable manual S 102 30.4473 105 -0.16 70
IV.FDMO.HHZ. 2020-04-08T04:12:41.42 0.1 undecidable manual P 350 58.9965 96 -0.12 90
IV.MOMA.HHZ. 2020-04-08T04:12:41.85 0.1 undecidable manual P 302 61.2942 96 -0.05 91
IV.FIAM.HHZ. 2020-04-08T04:12:41.34 0.3 undecidable manual S 196 28.1496 107 0.19 71
IV.MF5.EHZ. 2020-04-08T04:12:41.12 0.1 undecidable manual P 21 56.499 96 -0.05 92
IV.ARRO.EHZ. 2020-04-08T04:12:38.04 0.1 undecidable manual P 282 36.9297 101 -0.14 93
IV.LNSS.HHZ. 2020-04-08T04:12:38.13 0.6 undecidable manual S 306 17.0718 122 -0.31 46
IV.SMA1.EHZ. 2020-04-08T04:12:38.48 0.3 undecidable manual S 38 16.6722 123 0.12 72
IV.FIAM.HHZ. 2020-04-08T04:12:37.07 0.1 undecidable manual P 196 28.1496 107 0.21 93
IV.GIGS.HHZ. 2020-04-08T04:12:37.06 0.1 undecidable manual P 102 30.4473 105 -0.15 94
IV.TERO.HHZ. 2020-04-08T04:12:37.60 0.1 undecidable manual P 69 34.5432 102 -0.21 93
IV.NRCA.HHZ. 2020-04-08T04:12:37.85 0.1 undecidable manual P 348 36.4413 101 -0.25 91
IV.RM33.EHZ. 2020-04-08T04:12:36.12 0.1 undecidable manual S 130 0.5994 177 0.01 100
IV.LNSS.HHZ. 2020-04-08T04:12:35.28 0.1 undecidable manual P 306 17.0718 122 -0.01 99
IV.SMA1.EHZ. 2020-04-08T04:12:35.44 0.1 undecidable manual P 38 16.6722 123 0.2 95
IV.RM33.EHZ. 2020-04-08T04:12:34.12 0.1 undecidable manual P 130 0.5994 177 0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:1.7 0.000618 0.06 AML other m 2020-04-08T04:12:36.22
IV.RM33.HNE. ML:1.7 0.0005729999999999999 0.38 AML other m 2020-04-08T04:12:36.32
IV.RM33.EHN. ML:1.7 0.000615 0.2 AML other m 2020-04-08T04:12:36.22
IV.RM33.EHE. ML:1.7 0.0005495 0.38 AML other m 2020-04-08T04:12:36.32
IV.LNSS.HHE. ML:1.8 0.0004235 0.16 AML other m 2020-04-08T04:12:38.54
IV.LNSS.HHN. ML:1.8 0.000404 0.4 AML other m 2020-04-08T04:12:38.51
IV.SMA1.EHN. ML:1.8 0.00047799999999999996 0.2 AML other m 2020-04-08T04:12:38.86
IV.SMA1.EHE. ML:2.1 0.0009455 1.78 AML other m 2020-04-08T04:12:38.92
IV.FIAM.HHN. ML:0.8 0.000028899999999999998 0.82 AML other m 2020-04-08T04:12:42.92
IV.FIAM.HHE. ML:0.8 0.000029900000000000002 0.5 AML other m 2020-04-08T04:12:42.90
IV.GIGS.HHN. ML:0.5 0.000014354999999999999 0.96 AML other m 2020-04-08T04:12:42.21
IV.TERO.HHN. ML:1.1 0.00004704999999999999 1.6 AML other m 2020-04-08T04:12:43.84
IV.NRCA.HHN. ML:1.4 0.00010045000000000002 0.14 AML other m 2020-04-08T04:12:43.12
IV.NRCA.HHE. ML:1.6 0.000128 0.14 AML other m 2020-04-08T04:12:43.12
IV.GIGS.HHE. ML:0.5 0.000017049999999999998 1.44 AML other m 2020-04-08T04:12:43.93
IV.ARRO.EHE. ML:1.1 0.000045700000000000006 0.18 AML other m 2020-04-08T04:12:43.41
IV.ARRO.EHN. ML:1.3 0.00006709999999999999 0.32 AML other m 2020-04-08T04:12:44.43
IV.TERO.HHE. ML:1.1 0.0000454 1.1 AML other m 2020-04-08T04:12:45.19
IV.MOMA.HHN. ML:1.3 0.00004035 0.28 AML other m 2020-04-08T04:12:50.96
IV.MOMA.HHE. ML:1.3 0.00004045 0.24 AML other m 2020-04-08T04:12:51.82
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