Earthquake with magnitude of ML 0.7 on date 01-12-2021 and time 02:17:22 (UTC) in region 5 km S Acquasanta Terme (AP)

A magnitude ML 0.7 earthquake occured in region: 5 km S Acquasanta Terme (AP), on

  • 01-12-2021 02:17:22 (UTC)
  • 01-12-2021 03:17:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7270, 13.4020 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 5 2916 2916
Valle Castellana TE 8 977 3893
Arquata del Tronto AP 10 1178 5071
Rocca Santa Maria TE 11 537 5608
Accumoli RI 13 667 6275
Montegallo AP 14 523 6798
Amatrice RI 14 2657 9455
Cortino TE 15 656 10111
Roccafluvione AP 16 2010 12121
Venarotta AP 19 2066 14187
Campotosto AQ 19 542 14729
Palmiano AP 20 196 14925

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Teramo (54892 inhabitants)
42 Km N of L'Aquila (69753 inhabitants)
62 Km E of Foligno (57155 inhabitants)
64 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
73 Km W of Pescara (121014 inhabitants)
75 Km NW of Chieti (51815 inhabitants)
93 Km E of Perugia (166134 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NE of Tivoli (56533 inhabitants)
100 Km S of Ancona (100861 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 0.7 2021-12-01
02:17:22
42.7268 13.402 17 2022-03-30
13:04:34
Bollettino Sismico Italiano INGV 100558061
Reviewed
Rev100
ML 2.1 2021-12-01
02:17:22
42.7263 13.4018 16 2021-12-01
02:26:17
Sala Sismica INGV-Roma 97993421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-01 02:17:22 ± 0.14
Latitude 42.7268 ± 0.0045
Longitude 13.4020 ± 0.0061
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 100558061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 428
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 22
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) 0.38581
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 100558061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-11 14:01:26

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 97993421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-01 02:26:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SL.LJU.BHZ. 2021-12-01T02:19:09.82 3.0 undecidable manual Sg 10.39 0
IV.MTTG.HHZ. 2021-12-01T02:18:42.07 3.0 undecidable manual Pn 1.71 0
IX.CMP3.EHZ.02 2021-12-01T02:18:31.67 3.0 undecidable manual Sn -5.3 0
IT.ORP.HGZ. 2021-12-01T02:18:26.74 3.0 undecidable manual Sg -0.03 0
IX.SCL3.EHZ.02 2021-12-01T02:18:07.73 3.0 negative manual Pg 1.11 0
IV.CPGN.EHZ. 2021-12-01T02:18:03.66 3.0 undecidable manual S -4.36 0
IV.LAV9.HHZ. 2021-12-01T02:18:02.05 3.0 undecidable manual S -3.48 0
IV.TRTR.HHZ. 2021-12-01T02:17:49.20 3.0 undecidable manual P 0
IV.EL6.EHZ. 2021-12-01T02:17:45.68 3.0 undecidable manual S -1.05 0
IV.FRON.EHZ. 2021-12-01T02:17:41.54 3.0 undecidable manual P -0.15 0
IV.FDMO.HHZ. 2021-12-01T02:17:36.07 0.6 undecidable manual S 323 42.8238 102 -0.1 47
IV.LNSS.HNE. 2021-12-01T02:17:33.70 0.6 undecidable manual S 245 32.5452 107 0.19 47
IV.GIGS.HHZ. 2021-12-01T02:17:33.70 0.6 undecidable manual S 155 33.4443 106 -0.04 49
IV.MF5.EHZ. 2021-12-01T02:17:33.34 0.6 undecidable manual S 9 29.3484 110 0.64 42
IV.MC2.EHN. 2021-12-01T02:17:32.25 0.6 undecidable manual S 320 26.8509 112 0.17 48
IV.RM33.EHZ. 2021-12-01T02:17:32.65 0.6 undecidable manual S 212 28.6491 110 0.13 48
IV.NRCA.HHZ. 2021-12-01T02:17:31.63 0.6 undecidable manual S 297 26.2515 113 -0.3 47
IV.TERO.HHZ. 2021-12-01T02:17:30.55 0.3 undecidable manual S 125 20.0688 121 0.08 74
IV.ASCOL.EHN. 2021-12-01T02:17:30.46 0.3 undecidable manual S 48 20.5683 120 -0.12 74
IV.MMO1.EHZ. 2021-12-01T02:17:30.13 0.6 undecidable manual S 342 20.0688 121 -0.34 47
IV.FDMO.HHZ. 2021-12-01T02:17:30.02 0.3 undecidable manual P 323 42.8238 102 -0.21 69
IV.MF5.EHZ. 2021-12-01T02:17:28.54 0.1 positive manual P 9 29.3484 110 0.32 93
IV.LNSS.HNE. 2021-12-01T02:17:28.88 0.3 undecidable manual P 245 32.5452 107 0.19 71
IV.MC2.EHN. 2021-12-01T02:17:28.03 0.3 undecidable manual P 320 26.8509 112 0.17 72
IV.GIGS.HHZ. 2021-12-01T02:17:28.46 0.6 undecidable manual P 155 33.4443 106 -0.36 45
IV.SMA1.EHZ. 2021-12-01T02:17:28.81 0.6 undecidable manual S 207 11.9769 139 0.01 50
IV.RM33.EHZ. 2021-12-01T02:17:28.09 0.1 undecidable manual P 212 28.6491 110 -0.03 98
IV.TERO.HHZ. 2021-12-01T02:17:27.03 0.3 undecidable manual P 125 20.0688 121 0.09 74
IV.NRCA.HHZ. 2021-12-01T02:17:27.55 0.3 undecidable manual P 297 26.2515 113 -0.23 71
IV.MMO1.EHZ. 2021-12-01T02:17:26.76 0.3 undecidable manual P 342 20.0688 121 -0.17 73
IV.ASCOL.EHN. 2021-12-01T02:17:26.77 0.3 undecidable manual P 48 20.5683 120 -0.23 72
IV.SMA1.EHZ. 2021-12-01T02:17:26.04 0.1 undecidable manual P 207 11.9769 139 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.8 0.000047172625000000005 0.1184 AML other m 2021-12-01T02:17:28.89
IV.SMA1.EHE. ML:0.6 0.000036245094999999996 0.0992 AML other m 2021-12-01T02:17:28.99
IV.MMO1.EHN. ML:0.5 0.0000224640665 2.6592 AML other m 2021-12-01T02:17:30.92
IV.MMO1.EHE. ML:0.4 0.0000146677615 1.2608 AML other m 2021-12-01T02:17:30.02
IV.TERO.HHN. ML:0.7 0.000031151053 0.0816 AML other m 2021-12-01T02:17:30.66
IV.TERO.HHE. ML:1.2 0.000082914275 1.08 AML other m 2021-12-01T02:17:30.34
IV.NRCA.HHN. ML:0.7 0.00002392089 0.0992 AML other m 2021-12-01T02:17:31.78
IV.NRCA.HHE. ML:0.7 0.000025015475000000003 0.08 AML other m 2021-12-01T02:17:32.04
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
Waveforms Seismic signals in miniseed + resp format Download