Earthquake with magnitude of ML 1.3 on date 22-08-2019 and time 15:10:24 (Italy) in region 5 km S Arquata del Tronto (AP)

A magnitude ML 1.3 earthquake occured in region: 5 km S Arquata del Tronto (AP), on

  • 22-08-2019 13:10:24 (UTC)
  • 22-08-2019 15:10:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.73, 13.3 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
Arquata del Tronto AP 5 1178 1178
Accumoli RI 5 667 1845
Acquasanta Terme AP 10 2916 4761
Amatrice RI 11 2657 7418
Montegallo AP 13 523 7941
Valle Castellana TE 16 977 8918
Cittareale RI 17 482 9400
Norcia PG 18 4957 14357
Rocca Santa Maria TE 19 537 14894
Montemonaco AP 20 604 15498
Campotosto AQ 20 542 16040

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
42 Km N of L'Aquila (69753 inhabitants)
55 Km E of Foligno (57155 inhabitants)
56 Km E of Terni (111501 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
83 Km NW of Chieti (51815 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.3 2019-08-22
13:10:24
42.73 13.3 13 2019-08-22
13:28:58
Sala Sismica INGV-Roma 71703371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-22 13:10:24 ± 0.1
Latitude 42.73 ± 0.01
Longitude 13.30 ± 0.01
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71703371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 811
Semi-minor axis of confidence ellipse (meter) 365
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 810
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33904
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 71703371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-22 13:28:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GIGS.HHZ. 2019-08-22T13:10:37.59 0.3 undecidable manual S 143 0.339 93 0.12 71
IV.TERO.HHZ. 2019-08-22T13:10:34.71 0.3 undecidable manual S 115 0.2464 96 -0.03 74
IV.GIGS.HHZ. 2019-08-22T13:10:32.05 0.1 undecidable manual P 143 0.339 93 -0.14 95
IV.TERO.HHZ. 2019-08-22T13:10:30.52 0.1 undecidable manual P 115 0.2464 96 -0.09 98
IV.MTRA.EHZ. 2019-08-22T13:10:30.00 0.3 undecidable manual S 67 0.0773 135 -0.08 76
IV.RM33.HNZ. 2019-08-22T13:10:30.56 0.3 undecidable manual P 196 0.2257 97 0.3 70
IV.SMA1.EHZ. 2019-08-22T13:10:30.50 0.3 undecidable manual S 165 0.0989 125 -0.07 75
IV.LNSS.HNZ. 2019-08-22T13:10:30.10 0.1 undecidable manual P 237 0.2266 97 -0.17 96
IV.CAMP.HHZ. 2019-08-22T13:10:29.88 0.1 undecidable manual P 157 0.2068 98 -0.05 99
IV.MC2.EHZ. 2019-08-22T13:10:29.84 0.1 undecidable manual P 336 0.2023 98 -0.02 99
IV.NRCA.HHZ. 2019-08-22T13:10:29.11 3.0 undecidable manual P 0
IV.SMA1.EHZ. 2019-08-22T13:10:28.32 0.1 undecidable manual P 165 0.0989 125 0.12 100
IV.MTRA.EHZ. 2019-08-22T13:10:28.03 0.1 undecidable manual P 67 0.0773 135 0.12 100
IV.T1299.EHZ. 2019-08-22T13:10:24.87 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHE. ML:1.3 0.0001006 0.12 AML other m 2019-08-22T13:10:34.78
IV.MTRA.EHE. ML:1.6 0.00042260305 0.1408 AML other m 2019-08-22T13:10:30.07
IV.MTRA.EHN. ML:1.2 0.00020600975 0.256 AML other m 2019-08-22T13:10:31.41
IV.MTRA.HNE. ML:1.5 0.00040990445 0.1408 AML other m 2019-08-22T13:10:30.07
IV.MTRA.HNN. ML:1.3 0.0002483226 0.1792 AML other m 2019-08-22T13:10:30.15
IV.SMA1.EHE. ML:1.2 0.0001551995 0.1792 AML other m 2019-08-22T13:10:30.56
IV.SMA1.EHN. ML:1.4 0.00024931115 0.1792 AML other m 2019-08-22T13:10:30.56
IV.TERO.HHN. ML:1.1 5.910345E-5 0.0768 AML other m 2019-08-22T13:10:35.31
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download