Earthquake with magnitude of ML 0.5 on date 23-08-2019 and time 23:13:05 (UTC) in region 4 km E Accumoli (RI)

A magnitude ML 0.5 earthquake occured in region: 4 km E Accumoli (RI), on

  • 23-08-2019 23:13:05 (UTC)
  • 24-08-2019 01:13:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7080, 13.2900 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Accumoli RI 4 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 9 2657 4502
Acquasanta Terme AP 12 2916 7418
Cittareale RI 15 482 7900
Montegallo AP 15 523 8423
Valle Castellana TE 17 977 9400
Campotosto AQ 18 542 9942
Norcia PG 19 4957 14899
Rocca Santa Maria TE 20 537 15436

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
41 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 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
Bulletin
Rev1000
ML 0.5 2019-08-23
23:13:05
42.7082 13.2903 10 2019-08-28
08:56:30
Bollettino Sismico Italiano INGV 71814631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 23:13:05 ± 0.11
Latitude 42.7082 ± 0.0063
Longitude 13.2903 ± 0.0098
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71814631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 708
Semi-minor axis of confidence ellipse (meter) 704
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 304
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.30577
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:0.5

Field Value
Value 0.5
Uncertainty 0.0
Num. used stations 4
Type of magnitude ML
Reference to an origin 71814631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-26 09:38:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHN. 2019-08-23T23:13:17.43 0.6 undecidable manual S 24 33.9438 50 0.74 40
IV.TERO.HHZ. 2019-08-23T23:13:14.17 0.6 undecidable manual S 110 27.2505 50 -0.74 41
IV.LNSS.HNZ. 2019-08-23T23:13:13.96 0.6 undecidable manual S 240 23.4543 50 0.06 49
IV.MMO1.EHZ. 2019-08-23T23:13:13.00 0.3 undecidable manual S 8 21.3675 116 -0.26 71
IV.NRCA.HNZ. 2019-08-23T23:13:12.58 0.3 undecidable manual S 314 19.9689 117 -0.23 72
IV.MF5.EHN. 2019-08-23T23:13:12.45 0.3 undecidable manual P 24 33.9438 50 0.7 61
IV.SMA1.EHN. 2019-08-23T23:13:10.11 0.6 undecidable manual S 157 9.3795 138 0.26 48
IV.LNSS.HNZ. 2019-08-23T23:13:10.08 0.1 undecidable manual P 240 23.4543 50 -0.07 99
IV.TERO.HHZ. 2019-08-23T23:13:10.34 0.1 undecidable manual P 110 27.2505 50 -0.38 92
IV.MTRA.EHZ. 2019-08-23T23:13:09.97 0.3 undecidable manual S 58 10.1787 135 -0.08 75
IV.NRCA.HNZ. 2019-08-23T23:13:09.43 0.1 undecidable manual P 314 19.9689 117 -0.08 99
IV.MMO1.EHZ. 2019-08-23T23:13:09.64 0.3 undecidable manual P 8 21.3675 116 -0.13 73
IV.MTRA.EHZ. 2019-08-23T23:13:08.02 0.1 undecidable manual P 58 10.1787 135 0.11 100
IV.SMA1.EHN. 2019-08-23T23:13:08.10 0.1 undecidable manual P 157 9.3795 138 0.3 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:0.5 0.000039800000000000005 1.02 AML other m 2019-08-23T23:13:10.01
IV.MTRA.EHN. ML:0.5 0.00004 1.12 AML other m 2019-08-23T23:13:10.01
IV.TERO.HHN. ML:0.6 0.000018175024999999996 0.0768 AML other m 2019-08-23T23:13:14.64
IV.TERO.HHE. ML:0.6 0.0000219116 0.1024 AML other m 2019-08-23T23:13:14.36
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