Earthquake with magnitude of ML 1.6 on date 24-08-2020 and time 16:14:06 (UTC) in region 9 km S Acquasanta Terme (AP)

A magnitude ML 1.6 earthquake occured in region: 9 km S Acquasanta Terme (AP), on

  • 24-08-2020 16:14:06 (UTC)
  • 24-08-2020 18:14:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.69, 13.39 at 16 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 10 2916 2916
Valle Castellana TE 10 977 3893
Amatrice RI 10 2657 6550
Rocca Santa Maria TE 11 537 7087
Accumoli RI 12 667 7754
Cortino TE 12 656 8410
Arquata del Tronto AP 12 1178 9588
Campotosto AQ 14 542 10130
Crognaleto TE 17 1297 11427
Montegallo AP 18 523 11950
Fano Adriano TE 19 296 12246
Capitignano AQ 20 665 12911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Teramo (54892 inhabitants)
37 Km N of L'Aquila (69753 inhabitants)
62 Km E of Terni (111501 inhabitants)
64 Km E of Foligno (57155 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
72 Km W of Pescara (121014 inhabitants)
74 Km NW of Chieti (51815 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
94 Km SE of Perugia (166134 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
Reviewed
Rev100
ML 1.6 2020-08-24
16:14:06
42.69 13.39 16 2020-08-24
16:24:57
Sala Sismica INGV-Roma 82293551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-24 16:14:06 ± 0.12
Latitude 42.69 ± 0.00
Longitude 13.39 ± 0.01
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82293551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 600
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 600
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41459
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 82293551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-24 16:24:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CADC.HNZ. 2020-08-24T16:15:43.74 3.0 undecidable manual Sn -2.33 0
IV.PRMA.HHZ. 2020-08-24T16:15:36.62 3.0 undecidable manual Sn 4.81 0
IV.CPTP.HHZ. 2020-08-24T16:15:30.37 3.0 undecidable manual Pn 4.95 0
XK.GIZZ.HHZ. 2020-08-24T16:15:24.38 3.0 positive manual Pg 13.14 0
IV.CMPR.HHZ. 2020-08-24T16:15:23.38 3.0 undecidable manual Sn -1.15 0
IV.ZCCA.HHZ. 2020-08-24T16:15:18.09 3.0 undecidable manual Sn 1.64 0
IV.CAPR.HNZ. 2020-08-24T16:15:16.85 3.0 undecidable manual Pg 11.09 0
IV.TDS.HHZ. 2020-08-24T16:15:12.41 3.0 positive manual Pg 8.34 0
IV.CADC.HNZ. 2020-08-24T16:15:04.62 3.0 undecidable manual Pn 1.97 0
IV.BIOG.HHZ. 2020-08-24T16:15:04.87 3.0 undecidable manual Sn -0.24 0
IV.SENA.HHZ. 2020-08-24T16:15:04.89 3.0 negative manual Pn 1.27 0
IV.AMUR.HHZ. 2020-08-24T16:14:59.45 3.0 undecidable manual Pg 5.88 0
GU.GSCL.HHZ. 2020-08-24T16:14:48.26 3.0 positive manual Pn -0.67 0
IV.LRP.EHZ. 2020-08-24T16:14:41.91 3.0 undecidable manual S -0.69 0
IV.PIEI.HHZ. 2020-08-24T16:14:27.79 3.0 undecidable manual P 0.51 0
IV.T0110.HHZ. 2020-08-24T16:14:26.43 3.0 undecidable manual S -0.01 0
IV.LRP.EHZ. 2020-08-24T16:14:24.05 3.0 undecidable manual P -2.94 0
IV.FDMO.HHZ. 2020-08-24T16:14:21.68 0.3 undecidable manual S 328 0.4146 98 -0.12 70
IV.SSFR.HHZ. 2020-08-24T16:14:21.37 3.0 undecidable manual P -3.04 0
IV.GAVE.EHZ. 2020-08-24T16:14:20.61 0.3 undecidable manual S 271 0.3651 99 0.28 68
IV.MF5.EHZ. 2020-08-24T16:14:19.24 0.3 undecidable manual S 9 0.3058 102 0.63 62
IV.MC2.EHZ. 2020-08-24T16:14:17.78 0.3 undecidable manual S 327 0.2698 104 0.22 70
IV.RM33.EHZ. 2020-08-24T16:14:16.37 0.6 undecidable manual S 216 0.2194 109 0.23 47
IV.FDMO.HHZ. 2020-08-24T16:14:15.18 0.3 positive manual P 328 0.4146 98 -0.35 66
IV.MMO1.EHZ. 2020-08-24T16:14:15.79 0.6 undecidable manual S 348 0.2185 109 -0.32 47
IV.GAVE.EHZ. 2020-08-24T16:14:14.48 0.1 undecidable manual P 271 0.3651 99 -0.2 92
IV.CAMP.HHZ. 2020-08-24T16:14:14.31 0.3 undecidable manual S 175 0.1511 122 0.01 75
IV.TERO.HHZ. 2020-08-24T16:14:14.58 0.6 undecidable manual S 112 0.1691 118 -0.19 48
IV.MC2.EHZ. 2020-08-24T16:14:13.01 0.6 undecidable manual P 327 0.2698 104 -0.07 48
IV.MF5.EHZ. 2020-08-24T16:14:13.83 0.1 negative manual P 9 0.3058 102 0.14 94
IV.SMA1.EHZ. 2020-08-24T16:14:12.73 0.6 undecidable manual S 216 0.0692 148 0.17 49
IV.RM33.EHZ. 2020-08-24T16:14:12.29 0.3 undecidable manual P 216 0.2194 109 0.03 74
IV.MTRA.EHZ. 2020-08-24T16:14:12.35 0.3 undecidable manual S 3 0.071 148 -0.24 73
IV.MMO1.EHZ. 2020-08-24T16:14:11.92 0.6 undecidable manual P 348 0.2185 109 -0.32 46
IV.CAMP.HHZ. 2020-08-24T16:14:11.29 0.6 negative manual P 175 0.1511 122 0.09 49
IV.TERO.HHZ. 2020-08-24T16:14:11.36 0.1 undecidable manual P 112 0.1691 118 -0.11 98
IV.MTRA.EHZ. 2020-08-24T16:14:10.11 0.1 negative manual P 3 0.071 148 -0.11 100
IV.SMA1.EHZ. 2020-08-24T16:14:10.36 0.1 undecidable manual P 216 0.0692 148 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNE. ML:2.1 0.00125 0.2 AML other m 2020-08-24T16:14:12.40
IV.MTRA.EHE. ML:2.1 0.00125 0.18 AML other m 2020-08-24T16:14:12.41
IV.MTRA.HNN. ML:1.7 0.000533 0.46 AML other m 2020-08-24T16:14:12.51
IV.SMA1.EHN. ML:1.8 0.000608 1.46 AML other m 2020-08-24T16:14:12.82
IV.SMA1.EHE. ML:1.6 0.0004405 0.1 AML other m 2020-08-24T16:14:12.87
IV.MTRA.EHN. ML:1.7 0.000509 0.94 AML other m 2020-08-24T16:14:12.51
IV.TERO.HHN. ML:1.6 0.000277 0.08 AML other m 2020-08-24T16:14:14.74
IV.TERO.HHE. ML:1.5 0.000211 0.18 AML other m 2020-08-24T16:14:14.78
IV.RM33.EHN. ML:1.2 8.685E-5 0.64 AML other m 2020-08-24T16:14:16.53
IV.RM33.EHE. ML:1.2 9.48E-5 0.3 AML other m 2020-08-24T16:14:17.47
IV.FDMO.HHN. ML:1.4 7.5E-5 1.3 AML other m 2020-08-24T16:14:22.95
IV.FDMO.HHE. ML:1.3 5.7E-5 0.6 AML other m 2020-08-24T16:14:22.38
IV.ZCCA.HNE. ML:5.9 0.12 0.42 AML other m 2020-08-24T16:15:51.65
IV.ZCCA.HNN. ML:5.4 0.039 1.58 AML other m 2020-08-24T16:15:51.92
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