INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.4 on date 20-08-2018 and time 07:06:06 (Italy) in region 3 km SE Capitignano (AQ)

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

  • 20-08-2018 05:06:06 (UTC)
  • 20-08-2018 07:06:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5, 13.32 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
Capitignano AQ 3 665 665
Barete AQ 6 737 1402
Pizzoli AQ 7 4326 5728
Montereale AQ 7 2581 8309
Campotosto AQ 8 542 8851
Cagnano Amiterno AQ 9 1369 10220
Crognaleto TE 14 1297 11517
Scoppito AQ 15 3727 15244
Amatrice RI 15 2657 17901
Borbona RI 16 617 18518
L'Aquila AQ 17 69753 88271
Fano Adriano TE 19 296 88567
Posta RI 19 694 89261
Cittareale RI 19 482 89743
Pietracamela TE 19 271 90014

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of L'Aquila (69753 inhabitants)
36 Km SW of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
71 Km W of Chieti (51815 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
73 Km W of Pescara (121014 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
74 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km NE of Roma (2864731 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 1.4 2018-08-20
05:06:06
42.5 13.32 11 2018-08-20
05:10:07
Sala Sismica INGV-Roma 59987211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-20 05:06:06 ± 0.09
Latitude 42.50 ± 0.01
Longitude 13.32 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 59987211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 580
Semi-minor axis of confidence ellipse (meter) 317
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
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) 0.4029
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:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 59987211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-20 05:10:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MC2.EHZ. 2018-08-20T05:06:21.19 3.0 undecidable manual S -1.28 0
IV.MMO1.EHZ. 2018-08-20T05:06:21.12 0.1 undecidable manual S 0 0.4029 50 0.05 95
OB.GAVE.EHZ. 2018-08-20T05:06:20.31 0.1 undecidable manual S 302 0.3714 50 0.16 93
IV.NRCA.HHZ. 2018-08-20T05:06:19.95 0.1 undecidable manual S 336 0.3705 50 -0.16 93
IV.MF5.EHZ. 2018-08-20T05:06:17.37 3.0 negative manual P 0.37 0
IV.FDMO.HHZ. 2018-08-20T05:06:17.82 3.0 negative manual P -0.29 0
IV.TERO.HHZ. 2018-08-20T05:06:16.32 0.1 undecidable manual S 58 0.2419 50 0.02 99
IV.MTRA.EHZ. 2018-08-20T05:06:16.74 0.1 undecidable manual S 12 0.2653 50 -0.26 93
IV.MMO1.EHZ. 2018-08-20T05:06:15.14 0.3 positive manual P 0 0.4029 50 0.21 69
IV.NRCA.HHZ. 2018-08-20T05:06:14.28 0.6 undecidable manual P 336 0.3705 50 -0.1 47
IV.GIGS.HHZ. 2018-08-20T05:06:14.43 0.1 undecidable manual S 103 0.1889 117 -0.25 95
OB.GAVE.EHZ. 2018-08-20T05:06:14.37 0.6 positive manual P 302 0.3714 50 -0.04 48
IV.FIAM.HHZ. 2018-08-20T05:06:13.04 3.0 undecidable manual P 0.27 0
IV.TERO.HHZ. 2018-08-20T05:06:12.31 0.6 undecidable manual P 58 0.2419 50 0.13 48
IV.SMA1.EHZ. 2018-08-20T05:06:12.93 0.1 undecidable manual S 4 0.134 125 0.06 100
IV.MTRA.EHZ. 2018-08-20T05:06:12.45 0.6 negative manual P 12 0.2653 50 -0.14 48
IV.RM33.EHZ. 2018-08-20T05:06:11.11 0.1 undecidable manual S 279 0.0818 139 -0.24 97
IV.GIGS.HHZ. 2018-08-20T05:06:11.47 0.6 undecidable manual P 103 0.1889 117 0.23 48
IV.CAMP.HHZ. 2018-08-20T05:06:11.06 0.1 undecidable manual S 58 0.0737 142 -0.11 100
IV.SMA1.EHZ. 2018-08-20T05:06:10.39 0.3 positive manual P 4 0.134 125 0.19 73
IV.RM33.EHZ. 2018-08-20T05:06:09.46 1.0 undecidable manual P 279 0.0818 139 0.14 25
IV.CAMP.HHZ. 2018-08-20T05:06:09.57 0.1 positive manual P 58 0.0737 142 0.35 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:2 0.00144 0.46 AML other m 2018-08-20T05:06:11.47
IV.RM33.EHN. ML:2 0.001415 0.46 AML other m 2018-08-20T05:06:11.47
IV.RM33.HNE. ML:2.1 0.001785 0.16 AML other m 2018-08-20T05:06:11.35
IV.RM33.EHE. ML:2.1 0.001745 0.18 AML other m 2018-08-20T05:06:11.35
IV.CAMP.HHE. ML:1 0.0001297 1.26 AML other m 2018-08-20T05:06:13.66
IV.SMA1.EHE. ML:2 0.0009955 0.32 AML other m 2018-08-20T05:06:13.61
IV.SMA1.EHN. ML:1.9 0.0007805 0.18 AML other m 2018-08-20T05:06:13.59
IV.GIGS.HHE. ML:0.8 3.945E-5 0.72 AML other m 2018-08-20T05:06:14.41
IV.GIGS.HHN. ML:0.7 3.505E-5 0.98 AML other m 2018-08-20T05:06:15.49
IV.CAMP.HHN. ML:1.1 0.000162 0.34 AML other m 2018-08-20T05:06:15.04
IV.MTRA.HNE. ML:1.9 0.0003875 1.88 AML other m 2018-08-20T05:06:16.94
IV.MTRA.HNN. ML:1.7 0.0002385 1.14 AML other m 2018-08-20T05:06:17.96
IV.TERO.HHN. ML:1.4 0.000142 0.96 AML other m 2018-08-20T05:06:17.50
IV.TERO.HHE. ML:1.4 0.000122 0.78 AML other m 2018-08-20T05:06:18.92
IV.FIAM.HHE. ML:1.1 6.11E-5 0.52 AML other m 2018-08-20T05:06:19.74
IV.NRCA.HHE. ML:1.7 0.0001605 0.1 AML other m 2018-08-20T05:06:20.46
IV.NRCA.HHN. ML:1.5 0.0001001 0.1 AML other m 2018-08-20T05:06:20.73
OB.GAVE.EHN. ML:1.2 5.46E-5 1 AML other m 2018-08-20T05:06:21.47
OB.GAVE.EHE. ML:1.4 8.645E-5 0.2 AML other m 2018-08-20T05:06:22.99
IV.FIAM.HHN. ML:1 4.77E-5 0.88 AML other m 2018-08-20T05:06:23.01
IV.FDMO.HHE. ML:1.1 2.35E-5 0.94 AML other m 2018-08-20T05:06:27.64
IV.FDMO.HHN. ML:1 1.76E-5 0.72 AML other m 2018-08-20T05:06:31.09
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