Earthquake with magnitude of ML 1.3 on date 21-06-2021 and time 19:59:53 (UTC) in region 3 km W Amatrice (RI)

A magnitude ML 1.3 earthquake occured in region: 3 km W Amatrice (RI), on

  • 21-06-2021 19:59:53 (UTC)
  • 21-06-2021 21:59:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6340, 13.2580 at 12 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 3 2657 2657
Accumoli RI 7 667 3324
Cittareale RI 8 482 3806
Montereale AQ 12 2581 6387
Campotosto AQ 13 542 6929
Capitignano AQ 13 665 7594
Arquata del Tronto AP 16 1178 8772
Borbona RI 17 617 9389
Posta RI 18 694 10083
Acquasanta Terme AP 20 2916 12999
Cagnano Amiterno AQ 20 1369 14368

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
98 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 1.3 2021-06-21
19:59:53
42.6343 13.2585 12 2021-06-21
20:08:16
Sala Sismica INGV-Roma 91670791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-21 19:59:53 ± 0.07
Latitude 42.6343 ± 0.0045
Longitude 13.2585 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 91670791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 206
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 199
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45865
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 91670791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-21 20:08:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TST02.HHZ. 2021-06-21T20:00:25.74 3.0 undecidable manual S -2.86 0
IV.MURB.HNZ. 2021-06-21T20:00:22.42 3.0 undecidable manual S 0.19 0
IV.GAVE.EHZ. 2021-06-21T20:00:03.41 0.3 undecidable manual S 282 30.4473 93 -0.2 71
IV.CSP1.EHZ. 2021-06-21T20:00:02.36 0.1 undecidable manual P 355 50.9157 91 0.06 93
IV.TERO.HHZ. 2021-06-21T20:00:02.78 0.3 undecidable manual S 92 28.2495 93 -0.24 70
IV.NRCA.HHZ. 2021-06-21T20:00:01.93 0.3 undecidable manual S 332 25.0527 94 -0.24 71
IV.FDMO.HHZ. 2021-06-21T20:00:01.68 0.1 undecidable manual P 343 46.7199 92 0.03 95
IV.MF5.EHZ. 2021-06-21T20:00:01.61 0.6 positive manual P 23 42.5241 92 0.62 41
IV.GAVE.EHZ. 2021-06-21T19:59:59.08 0.1 undecidable manual P 282 30.4473 93 -0.05 97
IV.MC2.EHZ. 2021-06-21T19:59:59.38 0.1 undecidable manual P 350 31.2465 93 0.12 96
IV.RM33.EHZ. 2021-06-21T19:59:59.18 0.3 undecidable manual S 195 14.3745 109 -0.18 73
IV.MTRA.EHZ. 2021-06-21T19:59:59.88 0.3 undecidable manual S 40 17.6712 101 -0.33 71
IV.NRCA.HHZ. 2021-06-21T19:59:58.31 0.1 undecidable manual P 332 25.0527 94 0.01 99
IV.TERO.HHZ. 2021-06-21T19:59:58.79 0.1 undecidable manual P 92 28.2495 93 -0.01 98
IV.MTRA.EHZ. 2021-06-21T19:59:57.20 0.1 undecidable manual P 40 17.6712 101 0.03 100
IV.SMA1.EHZ. 2021-06-21T19:59:57.52 0.3 undecidable manual S 94 6.2937 144 -0.11 75
IV.RM33.EHZ. 2021-06-21T19:59:56.87 0.1 positive manual P 195 14.3745 109 0.18 98
IV.SMA1.EHZ. 2021-06-21T19:59:56.03 0.1 undecidable manual P 94 6.2937 144 0.35 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.4 0.000361 0.18 AML other m 2021-06-21T19:59:58.16
IV.SMA1.EHE. ML:1.2 0.0002315 0.12 AML other m 2021-06-21T19:59:58.30
IV.RM33.EHE. ML:0.7 0.000044149999999999996 0.1 AML other m 2021-06-21T19:59:59.79
IV.MTRA.EHE. ML:1.2 0.00011735 1.06 AML other m 2021-06-21T19:59:59.44
IV.RM33.EHN. ML:0.6 0.000039599999999999994 0.68 AML other m 2021-06-21T20:00:01.36
IV.MTRA.EHN. ML:1.0 0.00007085 0.32 AML other m 2021-06-21T20:00:01.35
IV.NRCA.HHN. ML:1.6 0.00021400000000000002 0.1 AML other m 2021-06-21T20:00:02.09
IV.NRCA.HHE. ML:1.9 0.00045400000000000003 0.14 AML other m 2021-06-21T20:00:02.18
IV.NRCA.HNE. ML:1.9 0.00044351615 0.1536 AML other m 2021-06-21T20:00:02.11
IV.NRCA.HNN. ML:1.5 0.000186114875 0.1024 AML other m 2021-06-21T20:00:02.09
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