Earthquake with magnitude of ML 1.4 on date 20-08-2020 and time 18:01:30 (UTC) in region 3 km W Crognaleto (TE)

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

  • 20-08-2020 18:01:30 (UTC)
  • 20-08-2020 20:01:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.56, 13.44 at 14 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
Crognaleto TE 3 1297 1297
Campotosto AQ 6 542 1839
Fano Adriano TE 8 296 2135
Cortino TE 9 656 2791
Pietracamela TE 10 271 3062
Capitignano AQ 13 665 3727
Amatrice RI 15 2657 6384
Rocca Santa Maria TE 16 537 6921
Montorio al Vomano TE 16 8218 15139
Montereale AQ 17 2581 17720
Tossicia TE 17 1406 19126
Barete AQ 18 737 19863
Pizzoli AQ 18 4326 24189
Isola del Gran Sasso d'Italia TE 19 4773 28962
Colledara TE 19 2179 31141
Valle Castellana TE 20 977 32118

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of L'Aquila (69753 inhabitants)
24 Km W of Teramo (54892 inhabitants)
58 Km W of Montesilvano (53738 inhabitants)
64 Km W of Chieti (51815 inhabitants)
64 Km W of Pescara (121014 inhabitants)
65 Km E of Terni (111501 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
86 Km NE of Guidonia Montecelio (88673 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
Reviewed
Rev100
ML 1.4 2020-08-20
18:01:30
42.56 13.44 14 2020-08-20
18:10:39
Sala Sismica INGV-Roma 82180681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-20 18:01:30 ± 0.1
Latitude 42.56 ± 0.01
Longitude 13.44 ± 0.01
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82180681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 690
Semi-minor axis of confidence ellipse (meter) 79
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54229
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 82180681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-20 18:10:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2020-08-20T18:03:21.84 3.0 undecidable manual Sn 2.69 0
IV.NDIM.HHZ. 2020-08-20T18:03:04.61 3.0 undecidable manual Sn 4.97 0
GU.CARD.HHZ. 2020-08-20T18:02:51.16 3.0 undecidable manual Sn -0.49 0
IV.SPS2.HHZ. 2020-08-20T18:02:45.23 3.0 undecidable manual Sg 11.45 0
XK.GIZZ.HHZ. 2020-08-20T18:02:42.92 3.0 undecidable manual Sn 3.25 0
IV.RIBO.EHZ.01 2020-08-20T18:02:36.19 3.0 undecidable manual Sn 5.54 0
IV.PANTE.HHZ. 2020-08-20T18:02:30.92 3.0 positive manual Pn -3.21 0
IV.MBAL.EHZ. 2020-08-20T18:02:29.98 3.0 negative manual Pn 7.39 0
IV.CAVT.HHZ. 2020-08-20T18:02:27.53 3.0 positive manual Pg 7.39 0
IV.PLLN.EHZ. 2020-08-20T18:02:26.07 3.0 undecidable manual Pg 13.17 0
GU.CARD.HHZ. 2020-08-20T18:02:23.67 3.0 negative manual Pg 14.34 0
IV.AGLI.HHZ. 2020-08-20T18:02:20.62 3.0 undecidable manual Pn 4.88 0
AC.VLO.HHZ. 2020-08-20T18:02:20.17 3.0 undecidable manual Pg 6.67 0
IV.MCIV.CHZ. 2020-08-20T18:02:16.77 3.0 undecidable manual Sn -1.81 0
IV.FIR.HHZ. 2020-08-20T18:02:11.77 3.0 undecidable manual Pg 10.72 0
IV.MILZ.HHZ. 2020-08-20T18:02:09.69 3.0 positive manual Pn 0.36 0
IV.IVPL.HHZ. 2020-08-20T18:02:06.95 3.0 positive manual Pn -0.66 0
IV.TOLF.HHZ. 2020-08-20T18:02:05.72 3.0 undecidable manual Sn -3.36 0
IV.FDMO.HHZ. 2020-08-20T18:01:49.49 0.6 undecidable manual S 331 0.5423 93 0.34 43
IV.ARRO.EHZ. 2020-08-20T18:01:48.03 0.6 undecidable manual S 272 0.5 94 0.13 46
IV.MC2.EHZ. 2020-08-20T18:01:45.38 0.6 undecidable manual S 332 0.3966 95 0.52 42
IV.PTRP.HHZ. 2020-08-20T18:01:44.02 3.0 undecidable manual Pn 0.65 0
IV.MMO1.EHZ. 2020-08-20T18:01:43.37 0.6 undecidable manual S 346 0.348 96 -0.06 48
IV.NRCA.HHZ. 2020-08-20T18:01:43.88 1.0 undecidable manual S 318 0.3642 96 -0.02 24
IV.VCEL.EHZ. 2020-08-20T18:01:43.92 0.6 undecidable manual S 120 0.3363 97 0.84 38
IV.SGTA.HHZ. 2020-08-20T18:01:43.05 3.0 undecidable manual Sn -2.67 0
IV.LNSS.HHZ. 2020-08-20T18:01:42.36 0.6 undecidable manual S 278 0.3004 98 0.34 45
IV.FDMO.HHZ. 2020-08-20T18:01:41.13 0.6 positive manual P 331 0.5423 93 -0.19 44
MN.AQU.HNE. 2020-08-20T18:01:40.05 0.6 undecidable manual S 188 0.2095 105 0.67 42
IV.ARRO.EHZ. 2020-08-20T18:01:40.19 0.6 undecidable manual P 272 0.5 94 -0.41 43
IV.RM33.EHZ. 2020-08-20T18:01:38.73 0.6 undecidable manual S 253 0.1772 110 0.27 47
IV.MC2.EHZ. 2020-08-20T18:01:38.72 0.6 undecidable manual P 332 0.3966 95 -0.12 47
IV.MTRA.EHZ. 2020-08-20T18:01:38.68 0.6 undecidable manual S 350 0.1979 106 -0.38 46
IV.NRCA.HHZ. 2020-08-20T18:01:38.06 0.6 undecidable manual P 318 0.3642 96 -0.23 46
IV.TERO.HHZ. 2020-08-20T18:01:37.02 0.6 undecidable manual S 62 0.1322 120 -0.24 48
IV.VVLD.HHZ. 2020-08-20T18:01:37.50 3.0 undecidable manual Sn -1.96 0
IV.VCEL.EHZ. 2020-08-20T18:01:37.92 0.1 undecidable manual P 120 0.3363 97 0.11 95
IV.GIGS.HHE. 2020-08-20T18:01:37.61 0.6 undecidable manual S 139 0.1439 117 0.05 49
IV.MMO1.EHZ. 2020-08-20T18:01:37.86 0.6 positive manual P 346 0.348 96 -0.16 47
IV.LNSS.HHZ. 2020-08-20T18:01:37.13 0.1 undecidable manual P 278 0.3004 98 -0.07 96
IV.SMA1.EHZ. 2020-08-20T18:01:36.65 0.3 undecidable manual S 311 0.1061 129 0.04 74
IV.MTRA.EHZ. 2020-08-20T18:01:35.29 0.1 negative manual P 350 0.1979 106 -0.2 95
IV.RM33.EHZ. 2020-08-20T18:01:35.29 0.1 positive manual P 253 0.1772 110 0.14 97
IV.SMA1.EHZ. 2020-08-20T18:01:34.29 0.3 undecidable manual P 311 0.1061 129 0.21 72
IV.TERO.HHZ. 2020-08-20T18:01:34.44 0.1 undecidable manual P 62 0.1322 120 -0.01 100
IV.GIUL.HHZ. 2020-08-20T18:01:34.35 3.0 positive manual P 0.93 0
MN.AQU.HNE. 2020-08-20T18:01:34.86 0.1 undecidable manual P 188 0.2095 105 -0.81 78
IV.GIGS.HHE. 2020-08-20T18:01:34.58 0.1 undecidable manual P 139 0.1439 117 -0.05 99
IV.LRP.EHZ. 2020-08-20T18:01:30.79 3.0 undecidable manual P 0.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.5 0.0002785 1.62 AML other m 2020-08-20T18:01:36.97
IV.TERO.HHN. ML:1.7 0.0003865 0.06 AML other m 2020-08-20T18:01:37.24
IV.TERO.HHE. ML:1.7 0.000409 0.16 AML other m 2020-08-20T18:01:37.32
IV.SMA1.EHE. ML:1.5 0.000325 0.24 AML other m 2020-08-20T18:01:37.70
IV.MTRA.EHE. ML:1.3 0.000119 0.84 AML other m 2020-08-20T18:01:38.77
IV.MTRA.EHN. ML:1.2 9.29E-5 1.32 AML other m 2020-08-20T18:01:38.12
IV.RM33.EHN. ML:1 7.065E-5 1.26 AML other m 2020-08-20T18:01:40.17
IV.RM33.EHE. ML:1 6.805E-5 1.02 AML other m 2020-08-20T18:01:41.72
IV.VVLD.HHE. ML:1 1.33E-5 0.62 AML other m 2020-08-20T18:01:42.60
IV.LNSS.HHE. ML:1.6 0.0001645 0.34 AML other m 2020-08-20T18:01:43.22
IV.LNSS.HHN. ML:1.5 0.0001355 0.14 AML other m 2020-08-20T18:01:43.65
IV.NRCA.HHN. ML:1.6 0.0001325 0.12 AML other m 2020-08-20T18:01:44.68
IV.VCEL.EHN. ML:1.3 7.19E-5 1.24 AML other m 2020-08-20T18:01:44.75
IV.NRCA.HHE. ML:1.6 0.000119 0.16 AML other m 2020-08-20T18:01:45.32
IV.VCEL.EHE. ML:1.3 6.64E-5 1.02 AML other m 2020-08-20T18:01:45.70
IV.VVLD.HHN. ML:1 1.32E-5 0.54 AML other m 2020-08-20T18:01:49.77
IV.FDMO.HHN. ML:1.2 3.35E-5 0.96 AML other m 2020-08-20T18:01:50.65
IV.FDMO.HHE. ML:1 2.179E-5 1.54 AML other m 2020-08-20T18:01:50.09
IV.MCIV.CHE. ML:1.7 2.41E-5 0.08 AML other m 2020-08-20T18:02:21.40
IV.MCIV.CHN. ML:1.9 4.02E-5 0.1 AML other m 2020-08-20T18:02:21.39
GU.CARD.HHE. ML:2.4 3.43E-5 0.24 AML other m 2020-08-20T18:02:54.30
GU.CARD.HHN. ML:2.5 4.005E-5 0.06 AML other m 2020-08-20T18:02:54.33
IV.MILZ.HHN. ML:4.8 0.0018 1.06 AML other m 2020-08-20T18:02:54.73
IV.MILZ.HHE. ML:5 0.002875 1.02 AML other m 2020-08-20T18:02:55.83
IV.NDIM.HHN. ML:3.7 0.0004985 0.1 AML other m 2020-08-20T18:03:11.35
IV.NDIM.HNN. ML:3.8 0.000687 1.08 AML other m 2020-08-20T18:03:14.59
IV.NDIM.HHE. ML:4 0.000924 0.08 AML other m 2020-08-20T18:03:30.80
IV.NDIM.HNE. ML:4 0.0009475 0.08 AML other m 2020-08-20T18:03:30.80
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