Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 01-04-2017 and time 03:59:57 (Italy) in region 5 km W L'Aquila (AQ)

A magnitude ML 1.6 earthquake occured in region: 5 km W L'Aquila (AQ), on

  • 01-04-2017 01:59:57 (UTC)
  • 01-04-2017 03:59:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3580, 13.3430 at 10 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
L'Aquila AQ 5 69753 69753
Scoppito AQ 7 3727 73480
Lucoli AQ 7 1011 74491
Tornimparte AQ 8 3187 77678
Pizzoli AQ 10 4326 82004
Barete AQ 12 737 82741
Ocre AQ 14 1167 83908
Fossa AQ 14 721 84629
Cagnano Amiterno AQ 15 1369 85998
Sant'Eusanio Forconese AQ 17 394 86392
Poggio Picenze AQ 17 1136 87528
Rocca di Cambio AQ 18 533 88061
Capitignano AQ 19 665 88726
Villa Sant'Angelo AQ 19 424 89150
San Demetrio ne' Vestini AQ 19 1854 91004

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km W of Chieti (51815 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
73 Km W of Pescara (121014 inhabitants)
85 Km SE of Foligno (57155 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
88 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 1.6 2017-04-01
01:59:57		 42.3578 13.3428 10 2017-04-01
02:13:08		 Sala Sismica INGV-Roma 43222541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-01 01:59:57 ± 0.06
Latitude 42.3578 ± 0.0036
Longitude 13.3428 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 43222541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 397
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
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) 46
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.54139
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 43222541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-01 02:13:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMUR.HNZ. 2017-04-01T02:00:18.69 3.0 positive manual P 0.18 0
IV.T1245.HHZ. 2017-04-01T02:00:16.75 3.0 undecidable manual S 0.54 0
IV.T1214.EHZ. 2017-04-01T02:00:13.37 0.6 undecidable manual S 346 45.9207 50 0.9 37
IV.T1220.EHZ. 2017-04-01T02:00:12.34 3.0 negative manual P -0.53 0
IV.FDMO.HHZ. 2017-04-01T02:00:11.33 3.0 positive manual P -0.23 0
IV.OFFI.HHZ. 2017-04-01T02:00:10.63 3.0 positive manual P 0.46 0
IV.T1216.EHZ. 2017-04-01T02:00:09.38 3.0 positive manual P 0.05 0
IV.PTQR.HHZ. 2017-04-01T02:00:09.71 0.6 undecidable manual S 173 37.5291 50 -0.54 43
IV.INTR.HHZ. 2017-04-01T02:00:08.24 0.1 undecidable manual P 130 60.0954 50 -0.07 92
IV.SMA1.EHZ. 2017-04-01T02:00:08.26 0.6 undecidable manual S 359 30.2475 50 -0.03 49
IV.MMO1.EHZ. 2017-04-01T02:00:08.33 3.0 positive manual P -0.21 0
IV.T1241.EHZ. 2017-04-01T02:00:07.65 3.0 positive manual P -0.16 0
IV.CERT.HHZ. 2017-04-01T02:00:07.99 1.0 undecidable manual P 213 54.2013 50 0.58 21
IV.ARRO.EHZ. 2017-04-01T02:00:07.33 3.0 positive manual P -0.14 0
IV.NRCA.HHZ. 2017-04-01T02:00:07.85 3.0 undecidable manual P -0.01 0
IV.T1217.EHZ. 2017-04-01T02:00:07.12 0.1 undecidable manual P 320 51.7038 50 0.1 93
IV.T1214.EHZ. 2017-04-01T02:00:06.40 1.0 positive manual P 346 45.9207 50 0.28 23
IV.T1211.EHZ. 2017-04-01T02:00:06.04 3.0 undecidable manual P 0.05 0
IV.FAGN.HHZ. 2017-04-01T02:00:06.19 0.6 undecidable manual S 117 22.2555 114 0.3 47
IV.T1222.EHZ. 2017-04-01T02:00:06.57 0.6 undecidable manual S 281 25.5522 111 -0.38 46
IV.GIGS.HHZ. 2017-04-01T02:00:05.24 0.6 undecidable manual S 61 21.5673 114 -0.44 46
IV.T0110.HHZ. 2017-04-01T02:00:05.16 1.0 negative manual P 112 38.3283 50 0.2 23
IV.FIAM.HHZ. 2017-04-01T02:00:05.37 0.6 undecidable manual S 242 21.0678 115 -0.13 49
IV.T1218.EHZ. 2017-04-01T02:00:05.02 0.1 undecidable manual P 332 39.3273 50 -0.09 95
IV.CAMP.HHZ. 2017-04-01T02:00:05.01 0.6 undecidable manual S 15 20.4684 115 -0.31 47
IV.VCEL.EHZ. 2017-04-01T02:00:05.50 0.6 negative manual P 84 41.0256 50 0.13 47
IV.PTQR.HHZ. 2017-04-01T02:00:04.62 0.6 positive manual P 173 37.5291 50 -0.22 46
IV.RM33.EHZ. 2017-04-01T02:00:04.89 0.6 undecidable manual S 328 19.7691 116 -0.22 48
IV.SMA1.EHZ. 2017-04-01T02:00:03.62 0.6 negative manual P 359 30.2475 50 -0.09 48
IV.T1299.EHZ. 2017-04-01T02:00:03.56 1.0 positive manual P 351 31.0467 50 -0.28 23
IV.FAGN.HHZ. 2017-04-01T02:00:02.35 0.3 positive manual P 117 22.2555 114 0.02 75
IV.T1222.EHZ. 2017-04-01T02:00:02.88 1.0 positive manual P 281 25.5522 111 -0.06 25
IV.FIAM.HHZ. 2017-04-01T02:00:02.21 0.1 positive manual P 242 21.0678 115 0.11 98
IV.RM33.EHZ. 2017-04-01T02:00:01.89 0.1 negative manual P 328 19.7691 116 0.01 100
IV.CAMP.HHZ. 2017-04-01T02:00:01.92 0.1 positive manual P 15 20.4684 115 -0.08 98
IV.GIGS.HHZ. 2017-04-01T02:00:01.96 0.1 positive manual P 61 21.5673 114 -0.25 95
MN.AQU.HHZ. 2017-04-01T02:00:01.41 0.6 undecidable manual S 95 5.0949 152 0.14 50
IV.T1247.HHZ. 2017-04-01T02:00:00.52 0.1 negative manual P 339 9.9789 134 0.27 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHE. ML:2.2 0.0028799999999999997 0.26 AML other m 2017-04-01T02:00:01.64
MN.AQU.HLE. ML:2.2 0.00268 0.26 AML other m 2017-04-01T02:00:01.64
MN.AQU.HHN. ML:2.2 0.002545 0.32 AML other m 2017-04-01T02:00:01.53
MN.AQU.HLN. ML:2.2 0.002535 0.32 AML other m 2017-04-01T02:00:01.53
IV.ARRO.EHE. ML:1.3 0.00004825 1.24 AML other m 2017-04-01T02:00:17.19
IV.ARRO.EHN. ML:1.3 0.00004815 0.8 AML other m 2017-04-01T02:00:19.10
IV.CAMP.HHN. ML:1.6 0.000294 1.58 AML other m 2017-04-01T02:00:07.96
IV.CAMP.HHE. ML:1.4 0.0002065 1.22 AML other m 2017-04-01T02:00:07.88
IV.CERT.HHE. ML:1.4 0.0000664 0.32 AML other m 2017-04-01T02:00:17.34
IV.CERT.HHN. ML:1.2 0.0000385 0.28 AML other m 2017-04-01T02:00:17.92
IV.FAGN.HHN. ML:2.0 0.0006855 1.4 AML other m 2017-04-01T02:00:06.91
IV.FAGN.HHE. ML:2.0 0.000619 0.4 AML other m 2017-04-01T02:00:09.52
IV.FIAM.HHE. ML:1.6 0.0002875 0.42 AML other m 2017-04-01T02:00:05.60
IV.FIAM.HHN. ML:1.6 0.0003005 0.42 AML other m 2017-04-01T02:00:05.61
IV.GIGS.HHN. ML:1.1 0.0000816 0.36 AML other m 2017-04-01T02:00:08.41
IV.GIGS.HHE. ML:1.1 0.00008510000000000001 1.48 AML other m 2017-04-01T02:00:05.02
IV.INTR.HHE. ML:1.1 0.0000262 0.36 AML other m 2017-04-01T02:00:18.65
IV.INTR.HHN. ML:1.5 0.000057650000000000005 1.18 AML other m 2017-04-01T02:00:26.38
IV.NRCA.HHN. ML:1.6 0.000092 0.16 AML other m 2017-04-01T02:00:16.41
IV.NRCA.HHE. ML:1.6 0.00008659999999999999 0.14 AML other m 2017-04-01T02:00:17.02
IV.OFFI.HHE. ML:2.0 0.0001685 0.46 AML other m 2017-04-01T02:00:26.21
IV.OFFI.HHN. ML:2.1 0.0001905 0.38 AML other m 2017-04-01T02:00:25.36
IV.PTQR.HHN. ML:1.2 0.000056099999999999995 0.2 AML other m 2017-04-01T02:00:10.11
IV.PTQR.HHE. ML:1.2 0.0000546 0.14 AML other m 2017-04-01T02:00:10.21
IV.RM33.EHE. ML:1.7 0.000354 0.66 AML other m 2017-04-01T02:00:06.03
IV.RM33.HNE. ML:1.7 0.00034950000000000004 0.68 AML other m 2017-04-01T02:00:06.36
IV.RM33.HNN. ML:1.6 0.0002985 1.3 AML other m 2017-04-01T02:00:05.88
IV.RM33.EHN. ML:1.6 0.000266 0.58 AML other m 2017-04-01T02:00:06.66
IV.SMA1.EHE. ML:1.8 0.0003285 0.3 AML other m 2017-04-01T02:00:09.44
IV.SMA1.EHN. ML:1.9 0.00040649999999999996 0.42 AML other m 2017-04-01T02:00:09.56
IV.T0110.HHN. ML:1.6 0.0001375 1.52 AML other m 2017-04-01T02:00:17.88
IV.T0110.HHE. ML:1.7 0.0001985 0.42 AML other m 2017-04-01T02:00:16.52
IV.T1218.EHE. ML:1.4 0.0000998 1.74 AML other m 2017-04-01T02:00:15.00
IV.T1218.EHN. ML:1.4 0.00008305000000000001 0.8 AML other m 2017-04-01T02:00:16.35
IV.T1222.EHE. ML:1.5 0.00020150000000000002 0.26 AML other m 2017-04-01T02:00:09.45
IV.T1222.EHN. ML:1.5 0.0001715 1.04 AML other m 2017-04-01T02:00:09.52
IV.T1241.EHN. ML:1.3 0.0000446 1.44 AML other m 2017-04-01T02:00:21.05
IV.T1241.EHE. ML:1.4 0.00005805 1.12 AML other m 2017-04-01T02:00:17.31
IV.T1245.HHE. ML:1.5 0.00007395000000000001 0.36 AML other m 2017-04-01T02:00:18.53
IV.T1245.HHN. ML:1.7 0.0001147 0.28 AML other m 2017-04-01T02:00:18.42
IV.T1247.HHE. ML:2.2 0.0019 0.52 AML other m 2017-04-01T02:00:02.85
IV.T1247.HHN. ML:2.1 0.001635 0.38 AML other m 2017-04-01T02:00:04.35
IV.T1299.EHE. ML:1.4 0.0001245 0.16 AML other m 2017-04-01T02:00:09.71
IV.T1299.EHN. ML:1.3 0.00009939999999999999 0.64 AML other m 2017-04-01T02:00:10.33
IV.VCEL.EHN. ML:2.0 0.000323 0.28 AML other m 2017-04-01T02:00:15.33
IV.VCEL.EHE. ML:2.1 0.00041099999999999996 0.5 AML other m 2017-04-01T02:00:14.85
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