Earthquake with magnitude of ML 0.7 on date 22-08-2019 and time 00:49:34 (UTC) in region 6 km W Arquata del Tronto (AP)

A magnitude ML 0.7 earthquake occured in region: 6 km W Arquata del Tronto (AP), on

  • 22-08-2019 00:49:34 (UTC)
  • 22-08-2019 02:49:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7620, 13.2240 at 11 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
Arquata del Tronto AP 6 1178 1178
Accumoli RI 8 667 1845
Norcia PG 11 4957 6802
Montegallo AP 13 523 7325
Acquasanta Terme AP 15 2916 10241
Amatrice RI 16 2657 12898
Castelsantangelo sul Nera MC 16 281 13179
Cittareale RI 17 482 13661
Montemonaco AP 18 604 14265
Cascia PG 18 3217 17482
Preci PG 20 724 18206

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
48 Km E of Foligno (57155 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
52 Km E of Terni (111501 inhabitants)
78 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
90 Km NW of Chieti (51815 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
98 Km S of Ancona (100861 inhabitants)
99 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
Bulletin
Rev1000
ML 0.7 2019-08-22
00:49:34
42.762 13.2242 11 2019-11-13
14:31:07
Bollettino Sismico Italiano INGV 73436061
Reviewed
Rev100
ML 0.7 2019-08-22
00:49:34
42.7617 13.2247 11 2019-08-22
01:00:22
Sala Sismica INGV-Roma 71688511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-22 00:49:34 ± 0.04
Latitude 42.7620 ± 0.0018
Longitude 13.2242 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73436061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 212
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 71688511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-22 01:00:22

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 73436061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-25 07:33:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2019-08-22T00:49:47.30 0.3 undecidable manual S 358 36.6411 50 0.16 71
IV.TERO.HHZ. 2019-08-22T00:49:46.50 0.1 undecidable manual S 116 34.6431 50 -0.1 96
IV.CAMP.HHZ. 2019-08-22T00:49:45.00 0.1 undecidable manual S -0.14 0
IV.RM33.EHZ. 2019-08-22T00:49:44.90 0.1 undecidable manual S 182 28.0497 50 0.04 98
IV.GAVE.EHZ. 2019-08-22T00:49:44.80 0.1 undecidable manual S 254 27.9498 50 -0.04 98
IV.LNSS.HHZ. 2019-08-22T00:49:43.30 0.3 undecidable manual S 220 23.1546 50 -0.25 71
IV.T1299.HNZ. 2019-08-22T00:49:41.40 0.1 undecidable manual S 162 14.9739 125 0.22 97
IV.CSP1.EHZ. 2019-08-22T00:49:41.88 0.1 undecidable manual P 358 36.6411 50 -0.05 97
IV.MC2.EHZ. 2019-08-22T00:49:41.80 0.1 undecidable manual S 350 16.872 122 0.08 99
IV.TERO.HHZ. 2019-08-22T00:49:41.77 0.1 undecidable manual P 116 34.6431 50 0.15 95
IV.SMA1.EHZ. 2019-08-22T00:49:41.50 0.1 undecidable manual S 148 17.1717 122 -0.32 95
IV.MMO1.EHZ. 2019-08-22T00:49:41.70 0.1 undecidable manual S 29 17.3715 121 -0.18 97
IV.GAVE.EHZ. 2019-08-22T00:49:40.60 0.1 undecidable manual P 254 27.9498 50 0 99
IV.CAMP.HHZ. 2019-08-22T00:49:40.62 0.1 undecidable manual P -0.16 0
IV.RM33.EHZ. 2019-08-22T00:49:40.52 0.1 undecidable manual P 182 28.0497 50 -0.09 97
IV.MTRA.EHZ. 2019-08-22T00:49:40.70 0.1 undecidable manual S 92 14.0748 127 -0.23 97
IV.NRCA.HHZ. 2019-08-22T00:49:40.10 0.1 undecidable manual S 312 11.9769 132 -0.27 96
IV.LNSS.HHZ. 2019-08-22T00:49:39.86 0.1 undecidable manual P 220 23.1546 50 0 100
IV.NRCA.HHZ. 2019-08-22T00:49:38.13 0.1 undecidable manual P 312 11.9769 132 0.11 100
IV.MMO1.EHZ. 2019-08-22T00:49:38.94 0.1 undecidable manual P 29 17.3715 121 0.05 100
IV.T1299.HNZ. 2019-08-22T00:49:38.83 0.1 undecidable manual P 162 14.9739 125 0.34 94
IV.MC2.EHZ. 2019-08-22T00:49:38.94 0.1 undecidable manual P 350 16.872 122 0.14 98
IV.MTRA.EHZ. 2019-08-22T00:49:38.48 0.1 undecidable manual P 92 14.0748 127 0.14 99
IV.SMA1.EHZ. 2019-08-22T00:49:38.93 0.1 undecidable manual P 148 17.1717 122 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.2 0.00015845455 0.15 AML other m 2019-08-22T00:49:40.28
IV.NRCA.HHE. ML:1.2 0.000156 0.14 AML other m 2019-08-22T00:49:40.36
IV.NRCA.HHN. ML:1.1 0.0001505 0.74 AML other m 2019-08-22T00:49:40.35
IV.MTRA.EHE. ML:0.6 0.00003275 1.24 AML other m 2019-08-22T00:49:41.19
IV.MTRA.EHN. ML:0.6 0.000033100000000000005 0.28 AML other m 2019-08-22T00:49:41.56
IV.SMA1.EHE. ML:0.9 0.0000591 1.08 AML other m 2019-08-22T00:49:42.05
IV.SMA1.EHN. ML:0.7 0.0000412 1.38 AML other m 2019-08-22T00:49:42.80
IV.GAVE.EHE. ML:0.5 0.000017199277 0.1 AML other m 2019-08-22T00:49:45.29
IV.GAVE.EHN. ML:0.3 0.0000124139022 0.2 AML other m 2019-08-22T00:49:46.23
IV.TERO.HHN. ML:0.7 0.0000181 0.86 AML other m 2019-08-22T00:49:46.74
IV.TERO.HHE. ML:0.7 0.000019450000000000002 1.48 AML other m 2019-08-22T00:49:47.09
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