Earthquake with magnitude of ML 1.0 on date 25-08-2019 and time 06:08:11 (Italy) in region 5 km N Acquasanta Terme (AP)

A magnitude ML 1.0 earthquake occured in region: 5 km N Acquasanta Terme (AP), on

  • 25-08-2019 04:08:11 (UTC)
  • 25-08-2019 06:08:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.82, 13.41 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 6 2916 2916
Montegallo AP 7 523 3439
Roccafluvione AP 7 2010 5449
Venarotta AP 10 2066 7515
Palmiano AP 10 196 7711
Arquata del Tronto AP 10 1178 8889
Montemonaco AP 11 604 9493
Valle Castellana TE 12 977 10470
Ascoli Piceno AP 14 49407 59877
Montefortino FM 15 1178 61055
Comunanza AP 16 3166 64221
Force AP 18 1354 65575
Rocca Santa Maria TE 18 537 66112
Folignano AP 18 9241 75353
Amandola FM 19 3629 78982
Accumoli RI 19 667 79649
Montefalcone Appennino FM 19 424 80073
Rotella AP 20 906 80979

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Teramo (54892 inhabitants)
52 Km N of L'Aquila (69753 inhabitants)
59 Km E of Foligno (57155 inhabitants)
68 Km E of Terni (111501 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
77 Km NW of Pescara (121014 inhabitants)
81 Km NW of Chieti (51815 inhabitants)
89 Km E of Perugia (166134 inhabitants)
89 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 1.0 2019-08-25
04:08:11
42.82 13.41 22 2019-08-25
04:16:59
Sala Sismica INGV-Roma 71783111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-25 04:08:11 ± 0.19
Latitude 42.82 ± 0.00
Longitude 13.41 ± 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 71783111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 686
Semi-minor axis of confidence ellipse (meter) 334
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
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
Epicentral distance of station farthest from the epicenter (degree) 0.3975
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 71783111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-25 04:16:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2019-08-25T04:08:48.55 3.0 undecidable manual S 0.01 0
IV.VVLD.HHZ. 2019-08-25T04:08:31.75 3.0 undecidable manual P 1.91 0
IV.GAVE.EHZ. 2019-08-25T04:08:27.54 0.3 undecidable manual S 252 0.3975 108 0.85 56
IV.CSP1.EHZ. 2019-08-25T04:08:24.43 0.3 undecidable manual S 332 0.3103 114 0.15 70
IV.FDMO.HHZ. 2019-08-25T04:08:24.29 0.3 undecidable manual S 313 0.3193 114 -0.24 69
IV.TERO.HHZ. 2019-08-25T04:08:22.71 0.6 undecidable manual S 144 0.2437 122 0.18 48
IV.SMA1.EHZ. 2019-08-25T04:08:21.27 0.3 undecidable manual S 196 0.1961 129 -0.1 72
IV.NRCA.HNZ. 2019-08-25T04:08:21.86 0.6 undecidable manual S 274 0.2158 126 0.02 49
IV.MF5.EHZ. 2019-08-25T04:08:21.33 0.3 undecidable manual S 13 0.1727 133 0.47 67
IV.GAVE.EHZ. 2019-08-25T04:08:20.42 0.3 undecidable manual P 252 0.3975 108 -0.05 70
IV.MMO1.EHZ. 2019-08-25T04:08:19.34 0.3 undecidable manual S 324 0.0998 149 -0.15 74
IV.CSP1.EHZ. 2019-08-25T04:08:18.88 0.3 undecidable manual P 332 0.3103 114 -0.2 69
IV.FDMO.HHZ. 2019-08-25T04:08:18.90 0.1 undecidable manual P 313 0.3193 114 -0.32 90
IV.MTRA.EHZ. 2019-08-25T04:08:18.92 0.3 undecidable manual S 187 0.063 160 -0.1 74
IV.MNTT.EHZ. 2019-08-25T04:08:18.95 0.6 undecidable manual P 29 0.2788 118 0.35 45
IV.TERO.HHZ. 2019-08-25T04:08:18.20 0.6 undecidable manual P 144 0.2437 122 0.13 48
IV.MF5.EHZ. 2019-08-25T04:08:17.24 0.6 negative manual P 13 0.1727 133 0.14 48
IV.SMA1.EHZ. 2019-08-25T04:08:17.38 0.3 positive manual P 196 0.1961 129 -0.02 73
IV.NRCA.HNZ. 2019-08-25T04:08:17.47 0.1 undecidable manual P 274 0.2158 126 -0.2 94
IV.MMO1.EHZ. 2019-08-25T04:08:16.20 0.1 negative manual P 324 0.0998 149 -0.11 98
IV.MTRA.EHZ. 2019-08-25T04:08:16.02 0.1 negative manual P 187 0.063 160 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.6 0.00030383225 0.0576 AML other m 2019-08-25T04:08:19.22
IV.MTRA.EHN. ML:1.8 0.00045386965 0.08 AML other m 2019-08-25T04:08:19.19
IV.MTRA.HNE. ML:1.6 0.00031437625 0.0672 AML other m 2019-08-25T04:08:19.22
IV.MTRA.HNN. ML:1.8 0.00044847075 0.08 AML other m 2019-08-25T04:08:19.19
IV.MF5.EHE. ML:0.8 3.31878615E-5 0.1376 AML other m 2019-08-25T04:08:21.47
IV.MF5.EHN. ML:0.9 4.45268525E-5 0.1408 AML other m 2019-08-25T04:08:21.49
IV.SMA1.EHE. ML:1 4.6599305E-5 0.08 AML other m 2019-08-25T04:08:22.22
IV.SMA1.EHN. ML:1.1 6.1005265E-5 0.0832 AML other m 2019-08-25T04:08:22.20
IV.TERO.HHE. ML:1 4.055673E-5 0.08 AML other m 2019-08-25T04:08:23.12
IV.TERO.HHN. ML:1 4.2872995E-5 0.0576 AML other m 2019-08-25T04:08:23.36
IV.CSP1.EHE. ML:1.2 5.4184635E-5 0.2208 AML other m 2019-08-25T04:08:24.66
IV.CSP1.EHN. ML:0.9 2.8036955E-5 0.2784 AML other m 2019-08-25T04:08:25.17
IV.FDMO.HHE. ML:1.1 4.6417375E-5 0.16 AML other m 2019-08-25T04:08:25.24
IV.FDMO.HHN. ML:1.2 5.592429E-5 0.24 AML other m 2019-08-25T04:08:24.76
IV.MNTT.EHE. ML:1.5 0.00011943583 1.04 AML other m 2019-08-25T04:08:24.80
IV.GAVE.EHE. ML:1 2.7597715E-5 0.16 AML other m 2019-08-25T04:08:28.55
IV.GAVE.EHN. ML:1 2.3162485E-5 0.16 AML other m 2019-08-25T04:08:28.31
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