Earthquake with magnitude of ML 0.9 on date 22-08-2020 and time 20:47:07 (UTC) in region 3 km W Cagnano Amiterno (AQ)

A magnitude ML 0.9 earthquake occured in region: 3 km W Cagnano Amiterno (AQ), on

  • 22-08-2020 20:47:07 (UTC)
  • 22-08-2020 22:47:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4580, 13.1860 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
Cagnano Amiterno AQ 3 1369 1369
Borbona RI 8 617 1986
Barete AQ 8 737 2723
Montereale AQ 9 2581 5304
Pizzoli AQ 9 4326 9630
Antrodoco RI 10 2588 12218
Posta RI 10 694 12912
Micigliano RI 11 127 13039
Scoppito AQ 11 3727 16766
Capitignano AQ 12 665 17431
Borgo Velino RI 12 972 18403
Castel Sant'Angelo RI 15 1308 19711
Cittareale RI 18 482 20193
Campotosto AQ 19 542 20735

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of L'Aquila (69753 inhabitants)
46 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
63 Km NE of Guidonia Montecelio (88673 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
82 Km W of Chieti (51815 inhabitants)
84 Km W of Pescara (121014 inhabitants)
85 Km NE of Roma (2864731 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
97 Km SE of Perugia (166134 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 2020-08-22
20:47:07
42.4585 13.1862 12 2020-08-22
20:58:33
Sala Sismica INGV-Roma 82240391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-22 20:47:07 ± 0.06
Latitude 42.4585 ± 0.0027
Longitude 13.1862 ± 0.0061
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 82240391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 488
Semi-minor axis of confidence ellipse (meter) 106
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.33275
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82240391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-22 20:58:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2020-08-22T20:47:19.66 0.6 undecidable manual S 317 35.2425 93 -0.07 49
IV.SMA1.EHZ. 2020-08-22T20:47:16.36 0.6 undecidable manual S 33 22.6551 97 -0.02 50
IV.FIAM.HNN. 2020-08-22T20:47:16.25 0.6 undecidable manual S 195 21.867 98 0.07 50
IV.LNSS.HHZ. 2020-08-22T20:47:15.71 0.6 undecidable manual S 323 19.9689 100 0.04 50
IV.ARRO.EHZ. 2020-08-22T20:47:15.10 0.6 undecidable manual P 291 36.9297 93 0.13 48
IV.GAVE.EHZ. 2020-08-22T20:47:14.23 1.0 positive manual P 317 35.2425 93 -0.49 22
IV.SMA1.EHZ. 2020-08-22T20:47:12.92 1.0 positive manual P 33 22.6551 97 0.14 24
IV.RM33.EHZ. 2020-08-22T20:47:12.42 0.6 undecidable manual S 23 6.0939 146 -0.08 51
IV.FIAM.HNN. 2020-08-22T20:47:12.60 0.1 undecidable manual P 195 21.867 98 -0.06 99
IV.T1299.HNZ. 2020-08-22T20:47:12.57 0.1 undecidable manual P 22 21.0678 98 0.04 100
IV.LNSS.HHZ. 2020-08-22T20:47:12.42 0.1 undecidable manual P 323 19.9689 100 0.05 100
IV.RM33.EHZ. 2020-08-22T20:47:10.56 0.6 undecidable manual P 23 6.0939 146 0.02 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.8 0.00007549999999999999 1.02 AML other m 2020-08-22T20:47:12.25
IV.RM33.EHN. ML:0.8 0.00008199999999999999 0.98 AML other m 2020-08-22T20:47:12.94
IV.LNSS.HHE. ML:1.0 0.00006955 1.02 AML other m 2020-08-22T20:47:15.94
IV.LNSS.HHN. ML:1.1 0.0000859 1.88 AML other m 2020-08-22T20:47:15.05
IV.SMA1.EHN. ML:1.0 0.000054499999999999997 1.06 AML other m 2020-08-22T20:47:16.62
IV.SMA1.EHE. ML:1.2 0.0000902 0.38 AML other m 2020-08-22T20:47:16.65
IV.GAVE.EHE. ML:0.8 0.000025399999999999997 0.44 AML other m 2020-08-22T20:47:20.37
IV.GAVE.EHN. ML:0.7 0.00002035 0.5 AML other m 2020-08-22T20:47:20.80
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