Earthquake with magnitude of ML 1.4 on date 20-06-2020 and time 15:22:51 (UTC) in region 4 km W Amatrice (RI)

A magnitude ML 1.4 earthquake occured in region: 4 km W Amatrice (RI), on

  • 20-06-2020 15:22:51 (UTC)
  • 20-06-2020 17:22:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.65, 13.24 at 11 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
Amatrice RI 4 2657 2657
Accumoli RI 5 667 3324
Cittareale RI 8 482 3806
Montereale AQ 14 2581 6387
Campotosto AQ 15 542 6929
Arquata del Tronto AP 15 1178 8107
Capitignano AQ 15 665 8772
Borbona RI 18 617 9389
Posta RI 18 694 10083
Acquasanta Terme AP 19 2916 12999

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 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 2020-06-20
15:22:51
42.65 13.24 11 2020-06-20
15:27:32
Sala Sismica INGV-Roma 80348201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-20 15:22:51 ± 0.05
Latitude 42.65 ± 0.00
Longitude 13.24 ± 0.01
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80348201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 298
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.4038
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 80348201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-20 15:27:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-06-20T15:23:02.13 0.6 undecidable manual S 14 0.2581 90 0.25 46
IV.TERO.HHZ. 2020-06-20T15:23:01.56 0.6 undecidable manual S 95 0.2662 90 -0.57 44
IV.MF5.EHZ. 2020-06-20T15:23:00.10 0.3 undecidable manual P 25 0.3741 90 0.5 63
IV.FDMO.HHZ. 2020-06-20T15:23:00.40 1.0 undecidable manual P 344 0.4038 90 0.28 22
IV.NRCA.HHZ. 2020-06-20T15:23:00.21 0.6 undecidable manual S 333 0.2077 90 -0.18 47
IV.RM33.EHZ. 2020-06-20T15:22:58.29 0.6 undecidable manual S 189 0.1412 90 -0.14 48
IV.MTRA.EHZ. 2020-06-20T15:22:58.52 0.6 undecidable manual S 46 0.1556 90 -0.34 47
IV.LNSS.HHZ. 2020-06-20T15:22:58.82 0.6 undecidable manual S 253 0.1565 90 -0.05 48
IV.TERO.HHZ. 2020-06-20T15:22:57.57 0.1 negative manual P 95 0.2662 90 -0.19 95
IV.MMO1.EHZ. 2020-06-20T15:22:57.66 1.0 undecidable manual P 14 0.2581 90 0.05 24
IV.NRCA.HHZ. 2020-06-20T15:22:56.78 0.1 positive manual P 333 0.2077 90 0.03 98
IV.CAMP.HHZ. 2020-06-20T15:22:56.10 0.1 undecidable manual P 133 0.1664 90 0.06 97
IV.SMA1.EHZ. 2020-06-20T15:22:56.56 0.6 undecidable manual S 105 0.0701 132 0.08 49
IV.LNSS.HHZ. 2020-06-20T15:22:55.88 0.1 positive manual P 253 0.1565 90 0 98
IV.T1299.HNZ. 2020-06-20T15:22:55.55 0.6 undecidable manual S 117 0.0324 157 -0.27 48
IV.RM33.EHZ. 2020-06-20T15:22:55.56 0.1 positive manual P 189 0.1412 90 -0.06 97
IV.MTRA.EHZ. 2020-06-20T15:22:55.83 0.3 undecidable manual P 46 0.1556 90 -0.04 74
IV.SMA1.EHZ. 2020-06-20T15:22:54.72 0.3 undecidable manual P 105 0.0701 132 0.22 72
IV.T1299.HNZ. 2020-06-20T15:22:54.17 0.1 undecidable manual P 117 0.0324 157 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.8 0.000991 0.22 AML other m 2020-06-20T15:22:56.95
IV.SMA1.EHN. ML:1.5 0.0003905 1 AML other m 2020-06-20T15:22:57.99
IV.RM33.EHN. ML:1.1 0.000114 0.3 AML other m 2020-06-20T15:22:58.35
IV.MTRA.EHN. ML:1.3 0.0001745 0.84 AML other m 2020-06-20T15:22:58.75
IV.LNSS.HHN. ML:1.3 0.000161 1.52 AML other m 2020-06-20T15:22:58.83
IV.LNSS.HHE. ML:1.3 0.000173 0.14 AML other m 2020-06-20T15:22:58.87
IV.MTRA.EHE. ML:1.5 0.0002555 0.82 AML other m 2020-06-20T15:22:58.46
IV.MTRA.HNE. ML:1.5 0.000237 0.5 AML other m 2020-06-20T15:22:59.45
IV.RM33.EHE. ML:1.3 0.0001665 0.24 AML other m 2020-06-20T15:22:59.78
IV.MTRA.HNN. ML:1.4 0.0002065 1.1 AML other m 2020-06-20T15:22:59.88
IV.NRCA.HHN. ML:1.5 0.0001835 0.1 AML other m 2020-06-20T15:23:00.34
IV.NRCA.HHE. ML:1.6 0.0002675 0.2 AML other m 2020-06-20T15:23:00.45
IV.TERO.HHE. ML:1 4.99E-5 0.16 AML other m 2020-06-20T15:23:01.85
IV.TERO.HHN. ML:1.2 7.435E-5 0.1 AML other m 2020-06-20T15:23:02.61
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