Earthquake with magnitude of ML 1.1 on date 19-08-2019 and time 19:06:57 (Italy) in region 5 km NW Acquasanta Terme (AP)

A magnitude ML 1.1 earthquake occured in region: 5 km NW Acquasanta Terme (AP), on

  • 19-08-2019 17:06:57 (UTC)
  • 19-08-2019 19:06:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.39 at 22 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
Acquasanta Terme AP 5 2916 2916
Montegallo AP 6 523 3439
Arquata del Tronto AP 8 1178 4617
Roccafluvione AP 9 2010 6627
Montemonaco AP 11 604 7231
Palmiano AP 12 196 7427
Venarotta AP 12 2066 9493
Valle Castellana TE 12 977 10470
Montefortino FM 16 1178 11648
Ascoli Piceno AP 16 49407 61055
Accumoli RI 17 667 61722
Comunanza AP 17 3166 64888
Rocca Santa Maria TE 18 537 65425
Force AP 19 1354 66779
Amandola FM 19 3629 70408

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of Teramo (54892 inhabitants)
51 Km N of L'Aquila (69753 inhabitants)
58 Km E of Foligno (57155 inhabitants)
66 Km E of Terni (111501 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
78 Km NW of Pescara (121014 inhabitants)
82 Km NW of Chieti (51815 inhabitants)
88 Km E of Perugia (166134 inhabitants)
91 Km S of Ancona (100861 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 1.1 2019-08-19
17:06:57
42.81 13.39 22 2019-08-19
17:17:31
Sala Sismica INGV-Roma 71629721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-19 17:06:57 ± 0.16
Latitude 42.81 ± 0.01
Longitude 13.39 ± 0.01
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71629721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 789
Semi-minor axis of confidence ellipse (meter) 567
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.05216
Epicentral distance of station farthest from the epicenter (degree) 0.43078
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 71629721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 17:17:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2019-08-19T17:07:09.19 0.3 undecidable manual S 335 0.3139 114 -0.73 60
IV.TERO.HHZ. 2019-08-19T17:07:08.24 0.3 undecidable manual S 139 0.2437 121 0.14 71
IV.MF5.EHZ. 2019-08-19T17:07:07.19 0.6 undecidable manual S 16 0.1871 130 0.47 45
IV.NRCA.HNZ. 2019-08-19T17:07:07.29 0.3 undecidable manual S 277 0.2023 127 0.22 71
IV.MC2.EHZ. 2019-08-19T17:07:06.96 0.3 undecidable manual S 305 0.1781 132 0.43 68
IV.SMA1.EHZ. 2019-08-19T17:07:06.52 0.3 undecidable manual S 192 0.1817 131 -0.09 72
IV.PF6.EHE. 2019-08-19T17:07:05.32 0.3 undecidable manual P 337 0.3588 111 -0.08 71
IV.MML1.EHE. 2019-08-19T17:07:05.93 0.3 undecidable manual P 315 0.4308 107 -0.65 61
IV.RM33.EHE. 2019-08-19T17:07:05.08 1.0 undecidable manual P 203 0.3247 113 0.21 23
IV.CSP1.EHZ. 2019-08-19T17:07:04.64 0.3 undecidable manual P 335 0.3139 114 -0.05 72
IV.MTRA.EHZ. 2019-08-19T17:07:04.32 0.3 undecidable manual S 173 0.0522 163 -0.14 73
IV.FDMO.HHZ. 2019-08-19T17:07:04.67 0.1 undecidable manual P 316 0.3166 114 -0.07 95
IV.MMO1.EHZ. 2019-08-19T17:07:04.97 0.1 undecidable manual S 334 0.1016 149 -0.09 98
IV.TERO.HHZ. 2019-08-19T17:07:03.62 0.3 undecidable manual P 139 0.2437 121 -0.01 73
IV.NRCA.HNZ. 2019-08-19T17:07:03.10 0.3 undecidable manual P 277 0.2023 127 0.06 73
IV.MF5.EHZ. 2019-08-19T17:07:03.03 0.3 undecidable manual P 16 0.1871 130 0.19 71
IV.SMA1.EHZ. 2019-08-19T17:07:02.86 0.1 undecidable manual P 192 0.1817 131 0.08 97
IV.MC2.EHZ. 2019-08-19T17:07:02.93 0.1 undecidable manual P 305 0.1781 132 0.2 95
IV.MMO1.EHZ. 2019-08-19T17:07:01.85 0.1 undecidable manual P 334 0.1016 149 -0.03 100
IV.MTRA.EHZ. 2019-08-19T17:07:01.49 0.1 undecidable manual P 173 0.0522 163 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.2 0.0001205 0.08 AML other m 2019-08-19T17:07:04.42
IV.MTRA.EHE. ML:1.2 0.0001255 0.42 AML other m 2019-08-19T17:07:04.38
IV.SMA1.EHE. ML:1 5.5665975E-5 0.0768 AML other m 2019-08-19T17:07:06.98
IV.SMA1.EHN. ML:1 5.66599E-5 0.0896 AML other m 2019-08-19T17:07:07.07
IV.TERO.HHE. ML:0.8 2.6059245E-5 0.1408 AML other m 2019-08-19T17:07:08.91
IV.TERO.HHN. ML:0.8 2.9875005E-5 0.064 AML other m 2019-08-19T17:07:08.92
IV.CSP1.EHE. ML:0.9 2.7684135E-5 0.1024 AML other m 2019-08-19T17:07:10.60
IV.CSP1.EHN. ML:0.9 2.9719369E-5 0.1152 AML other m 2019-08-19T17:07:09.25
IV.FDMO.HHE. ML:1.4 8.1993565E-5 0.1664 AML other m 2019-08-19T17:07:06.96
IV.FDMO.HHN. ML:1.3 6.366774E-5 0.1536 AML other m 2019-08-19T17:07:07.03
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