Earthquake with magnitude of ML 0.9 on date 28-07-2020 and time 09:54:42 (Italy) in region 4 km W Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 4 km W Amatrice (RI), on

  • 28-07-2020 07:54:42 (UTC)
  • 28-07-2020 09:54:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6200, 13.2490 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
Cittareale RI 7 482 3139
Accumoli RI 8 667 3806
Montereale AQ 11 2581 6387
Capitignano AQ 12 665 7052
Campotosto AQ 12 542 7594
Borbona RI 15 617 8211
Posta RI 16 694 8905
Arquata del Tronto AP 18 1178 10083
Cagnano Amiterno AQ 18 1369 11452
Barete AQ 19 737 12189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
81 Km W of Chieti (51815 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
89 Km SE of Perugia (166134 inhabitants)
96 Km E of Viterbo (67173 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 0.9 2020-07-28
07:54:42
42.6198 13.2488 11 2020-07-28
08:01:08
Sala Sismica INGV-Roma 81416111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-28 07:54:42 ± 0.06
Latitude 42.6198 ± 0.0036
Longitude 13.2488 ± 0.0024
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81416111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 410
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27070
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 81416111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-28 08:01:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.COR1.EHZ. 2020-07-28T07:54:59.58 3.0 negative manual P -0.19 0
IV.TERO.HHZ. 2020-07-28T07:54:52.04 0.6 undecidable manual S 89 28.9488 90 -0.27 46
IV.NRCA.HHZ. 2020-07-28T07:54:51.37 0.6 undecidable manual S 335 26.1516 90 -0.17 48
IV.MTRA.EHZ. 2020-07-28T07:54:49.44 0.6 undecidable manual S 38 19.3695 90 -0.3 47
IV.LNSS.HHN. 2020-07-28T07:54:49.03 0.6 undecidable manual S 264 17.1717 90 -0.12 49
IV.GAVE.EHZ. 2020-07-28T07:54:48.24 0.6 negative manual P 286 30.0477 90 0.08 47
IV.CAMP.HHE. 2020-07-28T07:54:48.80 0.6 undecidable manual S 125 16.0728 90 -0.06 48
IV.TERO.HHZ. 2020-07-28T07:54:48.14 0.6 undecidable manual P 89 28.9488 90 0.14 47
IV.NRCA.HHZ. 2020-07-28T07:54:47.65 0.6 undecidable manual P 335 26.1516 90 0.09 47
IV.RM33.EHZ. 2020-07-28T07:54:47.56 0.6 undecidable manual S 193 12.5763 103 -0.38 45
IV.MTRA.EHZ. 2020-07-28T07:54:46.60 0.6 positive manual P 38 19.3695 90 0.08 48
IV.LNSS.HHN. 2020-07-28T07:54:46.10 0.6 undecidable manual P 264 17.1717 90 -0.07 49
IV.SMA1.EHZ. 2020-07-28T07:54:46.71 0.6 undecidable manual S 80 7.1928 135 0.02 50
IV.CAMP.HHE. 2020-07-28T07:54:46.13 0.1 undecidable manual P 125 16.0728 90 0.12 97
IV.RM33.EHZ. 2020-07-28T07:54:45.62 0.6 positive manual P 193 12.5763 103 0.14 49
IV.T1299.EHZ. 2020-07-28T07:54:45.80 0.6 undecidable manual S 60 3.1968 159 -0.31 47
IV.SMA1.EHZ. 2020-07-28T07:54:45.09 0.1 positive manual P 80 7.1928 135 0.33 94
IV.T1299.EHZ. 2020-07-28T07:54:44.47 0.1 undecidable manual P 60 3.1968 159 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.6 0.0005219519 0.2752 AML other m 2020-07-28T07:54:47.05
IV.SMA1.EHN. ML:1.2 0.00022766814999999999 0.2432 AML other m 2020-07-28T07:54:47.35
IV.RM33.EHE. ML:0.6 0.000042579815 0.224 AML other m 2020-07-28T07:54:50.09
IV.RM33.EHN. ML:0.7 0.00004758678 0.256 AML other m 2020-07-28T07:54:47.94
IV.MTRA.HNN. ML:1.1 0.000100697415 0.256 AML other m 2020-07-28T07:54:49.96
IV.MTRA.EHE. ML:1.0 0.00007203829000000001 0.32 AML other m 2020-07-28T07:54:50.44
IV.MTRA.EHN. ML:1.1 0.00008474052 0.2368 AML other m 2020-07-28T07:54:49.96
IV.NRCA.HHE. ML:0.8 0.000033731955 0.1152 AML other m 2020-07-28T07:54:51.78
IV.NRCA.HHN. ML:0.8 0.000034327465000000004 0.1024 AML other m 2020-07-28T07:54:51.65
IV.TERO.HHE. ML:0.5 0.000017121524999999997 0.0768 AML other m 2020-07-28T07:54:52.72
IV.TERO.HHN. ML:0.7 0.000022927280000000002 0.1408 AML other m 2020-07-28T07:54:52.51
IV.GAVE.EHE. ML:0.9 0.000037275565000000004 0.1408 AML other m 2020-07-28T07:54:53.40
IV.GAVE.EHN. ML:0.9 0.000033193885 0.1216 AML other m 2020-07-28T07:54:52.92
IV.COR1.EHN. ML:2.7 0.00040763195 0.0832 AML other m 2020-07-28T07:55:03.35
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