Earthquake with magnitude of ML 0.9 on date 06-06-2021 and time 09:56:12 (Italy) in region 2 km SW Acquasanta Terme (AP)

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

  • 06-06-2021 07:56:12 (UTC)
  • 06-06-2021 09:56:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7540, 13.3910 at 17 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Arquata del Tronto AP 8 1178 4094
Valle Castellana TE 9 977 5071
Montegallo AP 11 523 5594
Accumoli RI 13 667 6261
Rocca Santa Maria TE 13 537 6798
Roccafluvione AP 14 2010 8808
Amatrice RI 16 2657 11465
Venarotta AP 17 2066 13531
Montemonaco AP 17 604 14135
Palmiano AP 17 196 14331
Cortino TE 17 656 14987
Ascoli Piceno AP 19 49407 64394

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Teramo (54892 inhabitants)
45 Km N of L'Aquila (69753 inhabitants)
60 Km E of Foligno (57155 inhabitants)
65 Km E of Terni (111501 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
78 Km NW of Chieti (51815 inhabitants)
91 Km E of Perugia (166134 inhabitants)
97 Km S of Ancona (100861 inhabitants)
100 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Tivoli (56533 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 0.9 2021-06-06
07:56:12
42.7537 13.3913 17 2021-12-29
11:12:08
Bollettino Sismico Italiano INGV 92180291
Reviewed
Rev100
ML 0.9 2021-06-06
07:56:12
42.7542 13.3907 17 2021-06-06
08:03:57
Sala Sismica INGV-Roma 90848541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-06 07:56:12 ± 0.11
Latitude 42.7537 ± 0.0036
Longitude 13.3913 ± 0.0086
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92180291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 615
Semi-minor axis of confidence ellipse (meter) 352
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
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 25
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36423
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 92180291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-13 11:18:50

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 90848541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-06 08:03:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VOBA.EHZ. 2021-06-06T07:57:55.00 3.0 undecidable manual Sg 13.84 0
AC.VLO.HHZ. 2021-06-06T07:57:41.81 3.0 negative manual Pg 13.08 0
GU.RRL.HHZ. 2021-06-06T07:57:40.07 3.0 undecidable manual Pg 19.219999 0
IV.TEOL.HHZ. 2021-06-06T07:57:25.10 3.0 undecidable manual Sn -1.34 0
IV.ALJA.HHZ. 2021-06-06T07:57:24.13 3.0 undecidable manual Pn 1.55 0
IV.MSRU.HHZ. 2021-06-06T07:57:22.70 3.0 undecidable manual Pn 1.82 0
IV.COLB.HHZ. 2021-06-06T07:57:12.29 3.0 undecidable manual Sg 0.77 0
IV.PZUN.HHZ. 2021-06-06T07:57:04.70 3.0 negative manual Pg 9.38 0
IV.SEI.HHZ. 2021-06-06T07:56:39.81 3.0 undecidable manual Pg 2.8 0
IV.INTR.HHZ. 2021-06-06T07:56:28.86 3.0 undecidable manual P 0.84 0
IV.CSP1.EHZ. 2021-06-06T07:56:26.29 0.3 undecidable manual S 338 40.4262 101 -0.01 70
IV.MF5.EHZ. 2021-06-06T07:56:23.20 0.3 undecidable manual S 12 26.5512 110 0.47 66
IV.MC2.EHZ. 2021-06-06T07:56:22.08 0.3 undecidable manual S 317 24.0537 113 -0.02 73
IV.TERO.HHZ. 2021-06-06T07:56:21.69 0.6 undecidable manual S 130 22.5552 115 -0.06 48
IV.CSP1.EHZ. 2021-06-06T07:56:20.21 0.3 undecidable manual P 338 40.4262 101 -0.43 64
IV.T1299.HNZ. 2021-06-06T07:56:20.46 0.6 undecidable manual S 214 15.9729 127 0.23 46
IV.ASSB.HHZ. 2021-06-06T07:56:20.90 3.0 undecidable manual S 1.02 0
IV.SMA1.EHN. 2021-06-06T07:56:19.90 0.3 undecidable manual S 199 14.3745 131 0 73
IV.MF5.EHZ. 2021-06-06T07:56:18.68 0.1 undecidable manual P 12 26.5512 110 0.11 95
IV.MC2.EHZ. 2021-06-06T07:56:18.06 0.3 undecidable manual P 317 24.0537 113 -0.15 70
IV.MTRA.EHZ. 2021-06-06T07:56:18.08 0.3 undecidable manual S 51 0.4995 178 -0.15 75
IV.TERO.HHZ. 2021-06-06T07:56:17.91 0.3 undecidable manual P 130 22.5552 115 -0.1 71
IV.T1299.HNZ. 2021-06-06T07:56:17.22 0.1 undecidable manual P 214 15.9729 127 0.09 96
IV.SMA1.EHN. 2021-06-06T07:56:16.95 0.1 undecidable manual P 199 14.3745 131 0.01 98
IV.MTRA.EHZ. 2021-06-06T07:56:15.90 0.1 undecidable manual P 51 0.4995 178 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.0 0.00009855 0.1 AML other m 2021-06-06T07:56:18.17
IV.MTRA.EHN. ML:0.8 0.000057999999999999994 0.08 AML other m 2021-06-06T07:56:18.13
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download