Earthquake with magnitude of ML 0.9 on date 29-05-2020 and time 01:20:36 (Italy) in region 2 km E Acquasanta Terme (AP)

A magnitude ML 0.9 earthquake occured in region: 2 km E Acquasanta Terme (AP), on

  • 28-05-2020 23:20:36 (UTC)
  • 29-05-2020 01:20:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.76, 13.44 at 19 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 2 2916 2916
Valle Castellana TE 6 977 3893
Rocca Santa Maria TE 11 537 4430
Arquata del Tronto AP 12 1178 5608
Roccafluvione AP 12 2010 7618
Montegallo AP 12 523 8141
Venarotta AP 14 2066 10207
Ascoli Piceno AP 15 49407 59614
Palmiano AP 16 196 59810
Cortino TE 17 656 60466
Accumoli RI 17 667 61133
Folignano AP 17 9241 70374
Montemonaco AP 18 604 70978
Civitella del Tronto TE 19 5116 76094
Amatrice RI 19 2657 78751

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Teramo (54892 inhabitants)
46 Km N of L'Aquila (69753 inhabitants)
64 Km E of Foligno (57155 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
68 Km E of Terni (111501 inhabitants)
72 Km W of Pescara (121014 inhabitants)
75 Km NW of Chieti (51815 inhabitants)
94 Km E of Perugia (166134 inhabitants)
95 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 0.9 2020-05-28
23:20:36
42.76 13.44 19 2020-05-28
23:25:44
Sala Sismica INGV-Roma 79668191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-28 23:20:36 ± 0.07
Latitude 42.76 ± 0.00
Longitude 13.44 ± 0.00
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79668191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.37502
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 79668191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-28 23:25:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-05-28T23:20:50.73 0.3 undecidable manual S 317 0.375 105 -0.01 70
IV.NRCA.HHZ. 2020-05-28T23:20:47.00 0.3 undecidable manual S 287 0.2473 115 -0.17 70
IV.MC2.EHZ. 2020-05-28T23:20:47.03 0.1 undecidable manual S 309 0.2356 117 0.18 92
IV.TERO.HHZ. 2020-05-28T23:20:45.58 0.3 undecidable manual S 139 0.1853 125 0.01 72
IV.MMO1.EHZ. 2020-05-28T23:20:44.83 0.1 undecidable manual S 329 0.1592 130 -0.13 96
IV.SMA1.EHZ. 2020-05-28T23:20:44.74 0.3 undecidable manual S 210 0.1511 132 -0.04 73
IV.FDMO.HHZ. 2020-05-28T23:20:44.73 0.1 undecidable manual P 317 0.375 105 -0.15 90
IV.MTRA.EHZ. 2020-05-28T23:20:42.91 0.1 undecidable manual S 260 0.0306 168 -0.03 100
IV.NRCA.HHZ. 2020-05-28T23:20:42.72 0.1 undecidable manual P 287 0.2473 115 -0.1 94
IV.MC2.EHZ. 2020-05-28T23:20:42.75 0.1 undecidable manual P 309 0.2356 117 0.12 94
IV.TERO.HHZ. 2020-05-28T23:20:41.96 0.3 undecidable manual P 139 0.1853 125 0.07 73
IV.MMO1.EHZ. 2020-05-28T23:20:41.47 0.1 undecidable manual P 329 0.1592 130 -0.07 96
IV.SMA1.EHZ. 2020-05-28T23:20:41.59 0.1 undecidable manual P 210 0.1511 132 0.16 95
IV.MTRA.EHZ. 2020-05-28T23:20:40.41 0.3 undecidable manual P 260 0.0306 168 0.04 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.3 0.000168 1.84 AML other m 2020-05-28T23:20:42.03
IV.MTRA.EHN. ML:1.5 0.000278 1.94 AML other m 2020-05-28T23:20:42.01
IV.SMA1.EHN. ML:1 6.26E-5 0.12 AML other m 2020-05-28T23:20:45.07
IV.SMA1.EHE. ML:0.8 4.29E-5 0.08 AML other m 2020-05-28T23:20:45.12
IV.TERO.HHE. ML:0.6 1.98E-5 0.06 AML other m 2020-05-28T23:20:46.09
IV.TERO.HHN. ML:0.8 3.945E-5 1.54 AML other m 2020-05-28T23:20:46.92
IV.NRCA.HHN. ML:0.8 2.83E-5 0.94 AML other m 2020-05-28T23:20:47.24
IV.NRCA.HHE. ML:0.6 2.18E-5 0.8 AML other m 2020-05-28T23:20:48.28
IV.FDMO.HHN. ML:0.8 2.165E-5 0.3 AML other m 2020-05-28T23:20:51.42
IV.FDMO.HHE. ML:0.7 1.435E-5 0.84 AML other m 2020-05-28T23:20:51.28
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download