Earthquake with magnitude of ML 1.3 on date 09-02-2017 and time 00:38:19 (Italy) in region 4 km NW L'Aquila (AQ)

A magnitude ML 1.3 earthquake occured in region: 4 km NW L'Aquila (AQ), on

  • 08-02-2017 23:38:19 (UTC)
  • 09-02-2017 00:38:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.38, 13.37 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.

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 4 69753 69753
Pizzoli AQ 9 4326 74079
Scoppito AQ 10 3727 77806
Lucoli AQ 11 1011 78817
Barete AQ 11 737 79554
Tornimparte AQ 12 3187 82741
Ocre AQ 14 1167 83908
Fossa AQ 14 721 84629
Cagnano Amiterno AQ 15 1369 85998
Poggio Picenze AQ 16 1136 87134
Sant'Eusanio Forconese AQ 16 394 87528
Capitignano AQ 17 665 88193
Villa Sant'Angelo AQ 18 424 88617
San Demetrio ne' Vestini AQ 19 1854 90471
Rocca di Cambio AQ 19 533 91004
Barisciano AQ 19 1828 92832
Montereale AQ 19 2581 95413
Campotosto AQ 20 542 95955

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km NW of L'Aquila (69753 inhabitants)
41 Km SW of Teramo (54892 inhabitants)
63 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
65 Km W of Chieti (51815 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Pescara (121014 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.3 2017-02-08
23:38:19
42.38 13.37 10 2017-02-08
23:44:36
Sala Sismica INGV-Roma 40750021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-08 23:38:19 ± 0.08
Latitude 42.38 ± 0.00
Longitude 13.37 ± 0.01
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 40750021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 516
Semi-minor axis of confidence ellipse (meter) 456
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.34444
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 40750021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-08 23:44:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T1218.EHZ. 2017-02-08T23:38:32.34 0.3 undecidable manual S 326 0.3444 50 0.09 70
IV.LNSS.HHE. 2017-02-08T23:38:31.88 0.6 undecidable manual S 312 0.3301 50 0.06 47
IV.T1222.EHZ. 2017-02-08T23:38:29.54 0.3 undecidable manual S 274 0.25 50 0.1 71
IV.SMA1.EHZ. 2017-02-08T23:38:29.59 0.6 undecidable manual S 353 0.2491 50 0.17 47
IV.T1299.HNE. 2017-02-08T23:38:29.76 0.3 undecidable manual S 345 0.2599 50 0 72
IV.T0110.HHZ. 2017-02-08T23:38:27.33 3.0 negative manual Pg 0.66 0
IV.CAMP.HHZ. 2017-02-08T23:38:26.17 0.3 undecidable manual S 10 0.1547 121 -0.16 71
IV.LNSS.HHE. 2017-02-08T23:38:26.20 0.3 undecidable manual P 312 0.3301 50 -0.36 66
IV.GIGS.HHZ. 2017-02-08T23:38:26.40 0.3 undecidable manual S 64 0.1628 119 -0.18 71
IV.T1218.EHZ. 2017-02-08T23:38:26.66 0.1 undecidable manual P 326 0.3444 50 -0.16 92
IV.SMA1.EHZ. 2017-02-08T23:38:25.38 0.3 undecidable manual P 353 0.2491 50 0.2 70
IV.TERO.HHZ. 2017-02-08T23:38:25.61 3.0 undecidable manual Pn -0.18 0
IV.T1299.HNE. 2017-02-08T23:38:25.75 0.3 undecidable manual P 345 0.2599 50 0.38 67
IV.FIAM.HHZ. 2017-02-08T23:38:24.34 3.0 positive manual Pg -0.05 0
IV.FAGN.HHZ. 2017-02-08T23:38:24.25 3.0 undecidable manual Pg 0.14 0
IV.T1247.HHZ. 2017-02-08T23:38:24.12 0.3 undecidable manual S 316 0.0809 139 0.01 75
IV.T1222.EHZ. 2017-02-08T23:38:24.76 0.3 undecidable manual P 274 0.25 50 -0.44 66
IV.CAMP.HHZ. 2017-02-08T23:38:23.43 0.3 undecidable manual P 10 0.1547 121 0.04 73
IV.GIGS.HHZ. 2017-02-08T23:38:23.55 0.1 undecidable manual P 64 0.1628 119 0 98
MN.AQU.HHZ. 2017-02-08T23:38:23.23 0.1 undecidable manual S 142 0.0369 158 0.03 100
IV.T1247.HHZ. 2017-02-08T23:38:22.18 0.1 undecidable manual P 316 0.0809 139 0.07 98
MN.AQU.HHZ. 2017-02-08T23:38:21.77 0.1 undecidable manual P 142 0.0369 158 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HLE. ML:1.5 0.000529 0.32 AML other m 2017-02-08T23:38:23.30
MN.AQU.HHE. ML:1.5 0.000532 0.78 AML other m 2017-02-08T23:38:23.29
MN.AQU.HHN. ML:1.5 0.000511 0.66 AML other m 2017-02-08T23:38:23.48
MN.AQU.HLN. ML:1.5 0.000503 0.68 AML other m 2017-02-08T23:38:23.48
IV.FAGN.HHN. ML:1.4 0.000159 1.58 AML other m 2017-02-08T23:38:31.13
IV.FAGN.HHE. ML:1.5 0.0002155 0.34 AML other m 2017-02-08T23:38:33.58
IV.FIAM.HHE. ML:0.9 4.85E-5 1.02 AML other m 2017-02-08T23:38:29.86
IV.FIAM.HHN. ML:0.8 4.165E-5 0.44 AML other m 2017-02-08T23:38:33.73
IV.GIGS.HHN. ML:0.9 7.04E-5 0.14 AML other m 2017-02-08T23:38:26.48
IV.GIGS.HHE. ML:1.1 9.7E-5 0.12 AML other m 2017-02-08T23:38:26.49
IV.SMA1.EHN. ML:1.3 0.0001129 1.46 AML other m 2017-02-08T23:38:30.80
IV.SMA1.EHE. ML:1.2 8.48E-5 0.42 AML other m 2017-02-08T23:38:31.73
IV.T1247.HHE. ML:1.8 0.0009125 1.1 AML other m 2017-02-08T23:38:24.66
IV.T1247.HHN. ML:1.8 0.0009125 0.38 AML other m 2017-02-08T23:38:24.68
IV.TERO.HHN. ML:1.1 4.905E-5 1.08 AML other m 2017-02-08T23:38:31.55
IV.TERO.HHE. ML:1.2 7.05E-5 1.08 AML other m 2017-02-08T23:38:32.84
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download