Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 24-06-2021 and time 16:24:48 (UTC) in region 1 km N Amatrice (RI)

A magnitude ML 0.8 earthquake occured in region: 1 km N Amatrice (RI), on

  • 24-06-2021 16:24:48 (UTC)
  • 24-06-2021 18:24:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6410, 13.2860 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.

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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 1 2657 2657
Accumoli RI 7 667 3324
Cittareale RI 11 482 3806
Campotosto AQ 12 542 4348
Montereale AQ 13 2581 6929
Capitignano AQ 13 665 7594
Arquata del Tronto AP 15 1178 8772
Acquasanta Terme AP 18 2916 11688
Cortino TE 18 656 12344
Borbona RI 19 617 12961
Crognaleto TE 19 1297 14258

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of L'Aquila (69753 inhabitants)
34 Km W of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
100 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 0.8 2021-06-24
16:24:48		 42.6413 13.2858 12 2021-06-24
16:30:01		 Sala Sismica INGV-Roma 91830361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-24 16:24:48 ± 0.05
Latitude 42.6413 ± 0.0027
Longitude 13.2858 ± 0.0037
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 91830361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 285
Semi-minor axis of confidence ellipse (meter) 182
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 342
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29228
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 91830361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-24 16:30:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2021-06-24T16:25:02.92 3.0 undecidable manual S -0.08 0
IV.GAVE.EHZ. 2021-06-24T16:24:59.91 0.3 undecidable manual S 280 32.4453 91 0.03 71
IV.NRCA.HHZ. 2021-06-24T16:24:57.91 0.6 undecidable manual S 327 25.4523 92 -0.12 47
IV.TERO.HHZ. 2021-06-24T16:24:57.92 0.6 undecidable manual S 94 26.0517 92 -0.26 46
IV.LNSS.HNE. 2021-06-24T16:24:56.55 0.6 undecidable manual S 258 20.4684 93 -0.15 47
IV.GAVE.EHZ. 2021-06-24T16:24:55.19 0.1 undecidable manual P 280 32.4453 91 0 95
IV.RM33.EHZ. 2021-06-24T16:24:55.25 0.6 undecidable manual S 202 15.7731 97 -0.2 47
IV.MTRA.EHZ. 2021-06-24T16:24:55.20 0.6 undecidable manual S 35 15.6732 98 -0.21 47
IV.NRCA.HHZ. 2021-06-24T16:24:54.18 0.1 negative manual P 327 25.4523 92 0.06 95
IV.TERO.HHZ. 2021-06-24T16:24:54.30 0.1 negative manual P 94 26.0517 92 0.1 94
IV.LNSS.HNE. 2021-06-24T16:24:53.38 0.1 undecidable manual P 258 20.4684 93 0.03 96
IV.RM33.EHZ. 2021-06-24T16:24:52.66 0.1 undecidable manual P 202 15.7731 97 0.03 97
IV.MTRA.EHZ. 2021-06-24T16:24:52.67 0.1 undecidable manual P 35 15.6732 98 0.07 96
IV.SMA1.EHZ. 2021-06-24T16:24:52.83 0.6 undecidable manual S 107 4.1958 154 -0.14 48
IV.T1299.HNZ. 2021-06-24T16:24:51.05 0.1 undecidable manual P 200 0.7992 175 0 100
IV.SMA1.EHZ. 2021-06-24T16:24:51.37 0.1 positive manual P 107 4.1958 154 0.18 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.5 0.0005405175 0.2176 AML other m 2021-06-24T16:24:53.31
IV.SMA1.EHN. ML:1.2 0.00025478665 0.1152 AML other m 2021-06-24T16:24:53.06
IV.RM33.EHE. ML:0.6 0.00003543305500000001 0.1536 AML other m 2021-06-24T16:24:55.84
IV.RM33.EHN. ML:0.7 0.00004552455 0.1152 AML other m 2021-06-24T16:24:55.74
IV.MTRA.EHE. ML:0.6 0.00003365754 0.1408 AML other m 2021-06-24T16:24:55.49
IV.MTRA.EHN. ML:0.8 0.00005002737999999999 0.1152 AML other m 2021-06-24T16:24:55.33
IV.NRCA.HHE. ML:0.8 0.000038195005 0.0768 AML other m 2021-06-24T16:24:58.25
IV.NRCA.HHN. ML:0.6 0.000023538765 0.0896 AML other m 2021-06-24T16:24:58.05
IV.TERO.HHE. ML:0.9 0.000047289997 0.3072 AML other m 2021-06-24T16:24:58.25
IV.TERO.HHN. ML:0.9 0.000037822885 0.064 AML other m 2021-06-24T16:24:58.25
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