Earthquake with magnitude of ML 3.1 on date 16-08-2021 and time 13:44:35 (Italy) in region Austria (AUSTRIA)

A magnitude ML 3.1 earthquake occured in region: Austria (AUSTRIA), on

  • 16-08-2021 11:44:35 (UTC)
  • 16-08-2021 13:44:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 47.0210, 13.3460 at 10 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.1 2021-08-16
11:44:35
47.0212 13.3455 10 2021-12-29
11:12:23
Bollettino Sismico Italiano INGV 94666381
Reviewed
Rev100
ML 2.2 2021-08-16
11:44:37
47.0052 13.1468 11 2021-08-16
12:46:26
Sala Sismica INGV-Roma 94254081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-16 11:44:35 ± 0.65
Latitude 47.0212 ± 0.0333
Longitude 13.3455 ± 0.0475
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 94666381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4850
Semi-minor axis of confidence ellipse (meter) 1650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 4850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 243
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.27259
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.4
Num. used stations 39
Type of magnitude ML
Reference to an origin 94666381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-17 20:34:26

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 13
Type of magnitude ML
Reference to an origin 94254081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-16 12:46:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.DGI.HHZ. 2021-08-16T11:46:48.56 3.0 undecidable manual Pg 16.860001 0
IV.MGR.HHZ. 2021-08-16T11:46:39.02 3.0 undecidable manual Pn -1.35 0
IV.MMUR.HNZ. 2021-08-16T11:46:36.78 3.0 undecidable manual Sg 6.73 0
IV.ICAI.EHZ. 2021-08-16T11:46:35.25 3.0 negative manual Pg 8.09 0
IV.ATFO.HHZ. 2021-08-16T11:46:35.06 3.0 undecidable manual Sg 5.12 0
IV.PIEI.HHZ. 2021-08-16T11:46:27.91 3.0 undecidable manual Sg 2.15 0
IV.MURB.HNZ. 2021-08-16T11:46:21.48 3.0 undecidable manual Sn -9.99 0
IV.CERT.HHZ. 2021-08-16T11:46:19.23 3.0 negative manual Pg 10.71 0
IV.VVLD.HHZ. 2021-08-16T11:46:17.84 3.0 undecidable manual Pg 6.67 0
IV.AGLI.HHZ. 2021-08-16T11:46:16.56 3.0 undecidable manual Pn -5.55 0
IV.SRES.HHZ. 2021-08-16T11:46:05.27 3.0 positive manual Pn 1.47 0
GU.ENR.HHZ. 2021-08-16T11:45:53.63 3.0 negative manual Pn -1.52 0
IV.MMUR.HNZ. 2021-08-16T11:45:49.67 3.0 undecidable manual Pg 0.97 0
GU.CANO.HHZ. 2021-08-16T11:45:48.40 3.0 negative manual Pn -1.06 0
GU.GRAM.HHZ. 2021-08-16T11:45:40.91 3.0 undecidable manual Pg 5.14 0
IV.ZEN8.EHZ. 2021-08-16T11:45:16.03 0.6 undecidable manual P 233 252.2586 38 2.79 4
IV.MAGA.HHZ. 2021-08-16T11:45:15.96 0.3 undecidable manual P 237 249.5613 38 3.04 2
IV.MABI.HHZ. 2021-08-16T11:45:14.08 0.3 undecidable manual P 245 241.1808 38 2.21 16
ST.RONC.EHZ. 2021-08-16T11:45:13.53 0.3 undecidable manual P 242 237.7842 38 2.08 19
OX.SABO.HNZ. 2021-08-16T11:45:10.55 0.6 undecidable manual S 169 116.7942 50 1.62 31
OE.WTTA.HHE. 2021-08-16T11:45:10.34 1.0 undecidable manual S 282 131.7681 50 -2.59 6
SI.LUSI.HHZ. 2021-08-16T11:45:10.91 0.3 undecidable manual P 238 218.0151 38 1.93 24
ST.DOSS.HHZ. 2021-08-16T11:45:09.15 0.3 undecidable manual P 233 207.8364 38 1.43 36
ST.CARE.EHZ. 2021-08-16T11:45:09.28 0.3 undecidable manual P 253 212.1321 38 1.02 44
ST.GAGG.HHZ. 2021-08-16T11:45:09.09 0.3 undecidable manual P 241 209.7345 38 1.14 42
IV.BRES.EHZ. 2021-08-16T11:45:09.92 1.0 undecidable manual S 254 127.3725 50 -1.84 13
ST.OZOL.EHZ. 2021-08-16T11:45:05.49 0.1 undecidable manual P 249 187.368 38 0.31 88
IV.ASOL.HNN. 2021-08-16T11:45:05.03 0.3 undecidable manual P 220 174.6918 50 1.48 43
IV.CTI.HHZ. 2021-08-16T11:45:03.12 0.3 undecidable manual P 231 168.5091 50 0.53 69
ST.ZIAN.EHZ. 2021-08-16T11:45:01.04 0.3 undecidable manual P 239 158.9187 50 -0.07 80
OX.MPRI.HHN. 2021-08-16T11:45:01.04 0.6 undecidable manual S 198 90.7425 50 -0.95 47
SI.KOSI.HHZ. 2021-08-16T11:45:01.27 0.1 undecidable manual P 248 161.9157 50 -0.3 100
SI.ABSI.HHZ. 2021-08-16T11:45:00.02 0.1 undecidable manual P 259 156.9207 50 -0.79 87
OX.VARN.HNN. 2021-08-16T11:44:59.75 0.3 undecidable manual P 220 148.3404 50 0.27 80
IV.FREG.EHE. 2021-08-16T11:44:58.92 0.3 undecidable manual P 215 136.9629 50 1.19 58
SI.ROSI.HHE. 2021-08-16T11:44:58.57 0.3 undecidable manual P 267 146.742 50 -0.66 72
OX.CAE.HHZ. 2021-08-16T11:44:58.24 0.3 undecidable manual P 212 131.9679 50 1.28 56
NI.POLC.HHE. 2021-08-16T11:44:57.94 0.3 undecidable manual P 211 127.7721 50 1.62 46
OX.AGOR.HHN. 2021-08-16T11:44:56.15 0.3 undecidable manual P 231 128.3715 50 -0.26 84
OE.WTTA.HHE. 2021-08-16T11:44:56.19 0.1 undecidable manual P 282 131.7681 50 -0.73 97
IV.BRES.EHZ. 2021-08-16T11:44:55.54 0.1 undecidable manual P 254 127.3725 50 -0.71 98
OX.SABO.HNZ. 2021-08-16T11:44:54.93 0.3 undecidable manual P 169 116.7942 50 0.31 85
OX.PRED.HNZ. 2021-08-16T11:44:54.31 0.6 undecidable manual S 165 66.2781 50 -1.15 45
OX.MLN.HNE. 2021-08-16T11:44:53.77 0.3 undecidable manual P 210 111.5994 50 -0.05 91
OX.DRE.HNZ. 2021-08-16T11:44:51.40 0.3 undecidable manual P 166 96.8253 50 -0.14 92
OX.CIMO.HHZ. 2021-08-16T11:44:51.73 0.3 undecidable manual P 221 104.4177 50 -0.98 68
OX.ACOM.HNE. 2021-08-16T11:44:51.10 0.6 undecidable manual S 166 54.0015 50 -1.08 48
OX.MPRI.HHN. 2021-08-16T11:44:50.72 0.3 undecidable manual P 198 90.7425 50 0.11 93
IV.STAL.HHE. 2021-08-16T11:44:50.67 0.3 undecidable manual P 210 97.3248 50 -0.94 71
OX.PRED.HNZ. 2021-08-16T11:44:46.20 0.3 undecidable manual P 165 66.2781 50 -0.64 86
OX.ACOM.HNE. 2021-08-16T11:44:44.45 0.6 undecidable manual P 166 54.0015 50 -0.5 62
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CIMO.HHN. ML:2.2 0.0001596033 0.3008 AML other m 2021-08-16T11:45:04.27
OX.CIMO.HNN. ML:2.2 0.00015751874999999998 0.32 AML other m 2021-08-16T11:45:04.27
OX.CIMO.HHE. ML:2.1 0.00010836525 0.3584 AML other m 2021-08-16T11:45:04.94
OX.CIMO.HNE. ML:2.0 0.00010128451 1.1424 AML other m 2021-08-16T11:45:05.37
ST.ZIAN.EHN. ML:1.9 0.00004224688 0.3776 AML other m 2021-08-16T11:45:18.53
ST.ZIAN.HNE. ML:2.1 0.000058835104999999995 1.4432 AML other m 2021-08-16T11:45:19.76
ST.ZIAN.HNN. ML:2.1 0.000055564385 0.8 AML other m 2021-08-16T11:45:19.51
IV.ZEN8.HNN. ML:3.3 0.00040110404999999996 0.4544 AML other m 2021-08-16T11:45:19.19
ST.ZIAN.EHE. ML:2.1 0.000056236309999999996 0.8224 AML other m 2021-08-16T11:45:19.50
IV.CTI.HHN. ML:2.7 0.0002086865 1.7056 AML other m 2021-08-16T11:45:25.94
ST.OZOL.EHN. ML:3.1 0.000398 0.24 AML other m 2021-08-16T11:45:28.19
ST.OZOL.HNN. ML:3.0 0.000379 1.54 AML other m 2021-08-16T11:45:28.82
ST.OZOL.EHE. ML:3.1 0.000432 0.42 AML other m 2021-08-16T11:45:29.26
ST.OZOL.HNE. ML:3.1 0.00042337561000000003 0.4608 AML other m 2021-08-16T11:45:29.71
ST.GAGG.HHN. ML:3.2 0.00039994695000000003 0.6976 AML other m 2021-08-16T11:45:37.75
ST.GAGG.HNE. ML:3.2 0.00044762020000000004 0.6208 AML other m 2021-08-16T11:45:37.75
ST.DOSS.HHN. ML:3.4 0.00076250375 0.4032 AML other m 2021-08-16T11:45:38.69
ST.DOSS.HNE. ML:3.4 0.000766 0.42 AML other m 2021-08-16T11:45:38.70
IV.ZEN8.HNE. ML:3.3 0.00033850229999999996 0.7392 AML other m 2021-08-16T11:45:38.88
ST.DOSS.HHE. ML:3.2 0.00048018815000000004 0.7232 AML other m 2021-08-16T11:45:39.95
SI.LUSI.HHE. ML:3.4 0.0006180000000000001 1.5 AML other m 2021-08-16T11:45:39.00
ST.DOSS.HNN. ML:3.2 0.00045781995 0.7232 AML other m 2021-08-16T11:45:39.59
SI.LUSI.HHN. ML:3.4 0.0006722569000000001 0.3008 AML other m 2021-08-16T11:45:40.02
ST.GAGG.HHE. ML:3.3 0.0005695 0.48 AML other m 2021-08-16T11:45:40.68
ST.GAGG.HNN. ML:3.3 0.0005669999999999999 0.5 AML other m 2021-08-16T11:45:40.68
IV.MABI.HHN. ML:2.5 0.000072384805 0.2816 AML other m 2021-08-16T11:45:42.73
IV.MABI.HHE. ML:2.7 0.00009759999999999999 0.38 AML other m 2021-08-16T11:45:43.82
ST.RONC.HNE. ML:3.6 0.00079483925 0.544 AML other m 2021-08-16T11:45:44.11
ST.RONC.HNN. ML:3.2 0.00035407687 0.3392 AML other m 2021-08-16T11:45:44.95
ST.RONC.EHE. ML:3.4 0.0005340000000000001 0.48 AML other m 2021-08-16T11:45:45.48
IV.MAGA.HHE. ML:3.7 0.0008821947999999999 0.4992 AML other m 2021-08-16T11:45:48.64
ST.RONC.EHN. ML:3.5 0.0006855991999999999 0.5824 AML other m 2021-08-16T11:45:48.72
IV.MAGA.HHN. ML:3.5 0.0005895 0.4 AML other m 2021-08-16T11:45:49.80
IV.ZEN8.EHE. ML:2.6 0.00007105 0.3 AML other m 2021-08-16T11:45:49.74
IV.ZEN8.EHN. ML:2.8 0.00011199999999999998 0.4 AML other m 2021-08-16T11:45:51.57
IV.VOBA.HNE. ML:3.3 0.00034450370000000004 0.3904 AML other m 2021-08-16T11:45:53.24
IV.VOBA.EHE. ML:3.0 0.00016613745 0.2176 AML other m 2021-08-16T11:45:56.42
IV.VOBA.EHN. ML:2.9 0.00013900000000000002 0.18 AML other m 2021-08-16T11:45:56.70
IV.VOBA.HNN. ML:3.3 0.00036116885 0.2112 AML other m 2021-08-16T11:45:56.70
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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