Earthquake with magnitude of ML 1.3 on date 25-11-2021 and time 03:21:32 (Italy) in region 3 km E Anzi (PZ)

A magnitude ML 1.3 earthquake occured in region: 3 km E Anzi (PZ), on

  • 25-11-2021 02:21:32 (UTC)
  • 25-11-2021 03:21:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.5190, 15.9550 at 14 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
Anzi PZ 3 1696 1696
Laurenzana PZ 7 1797 3493
Trivigno PZ 8 678 4171
Castelmezzano PZ 8 800 4971
Pietrapertosa PZ 9 1032 6003
Albano di Lucania PZ 10 1435 7438
Calvello PZ 10 1948 9386
Brindisi Montagna PZ 10 908 10294
Campomaggiore PZ 12 811 11105
Abriola PZ 12 1531 12636
Pignola PZ 16 6962 19598
Corleto Perticara PZ 17 2511 22109
Vaglio Basilicata PZ 17 2047 24156
Accettura MT 17 1856 26012
Potenza PZ 19 67122 93134
Marsicovetere PZ 19 5546 98680
Tricarico MT 19 5388 104068
Oliveto Lucano MT 20 450 104518
Tolve PZ 20 3251 107769

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SE of Potenza (67122 inhabitants)
57 Km W of Matera (60436 inhabitants)
61 Km SW of Altamura (70396 inhabitants)
83 Km E of Battipaglia (50786 inhabitants)
83 Km S of Cerignola (58396 inhabitants)
84 Km SW of Andria (100440 inhabitants)
91 Km SW of Bitonto (55540 inhabitants)
93 Km SW of Trani (56217 inhabitants)
93 Km SW of Bisceglie (55422 inhabitants)
93 Km S of Barletta (94814 inhabitants)
94 Km SW of Molfetta (59874 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
Reviewed
Rev100
ML 1.3 2021-11-25
02:21:32
40.5187 15.9547 14 2021-11-25
02:26:52
Sala Sismica INGV-Roma 97769881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-25 02:21:32 ± 0.1
Latitude 40.5187 ± 0.0045
Longitude 15.9547 ± 0.0071
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97769881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 658
Semi-minor axis of confidence ellipse (meter) 252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.08094
Epicentral distance of station farthest from the epicenter (degree) 0.37951
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:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 97769881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 02:26:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTSN.HHZ. 2021-11-25T02:21:43.92 0.3 undecidable manual S 212 0.2959 98 0.17 72
IV.ACER.HHZ. 2021-11-25T02:21:43.33 0.6 undecidable manual S 358 0.2680 100 0.4 46
IV.SLCN.HHZ. 2021-11-25T02:21:43.14 0.3 undecidable manual S 242 0.2761 99 -0.04 74
IV.MCEL.HNZ. 2021-11-25T02:21:42.10 0.6 undecidable manual S 211 0.2257 103 0.4 46
IV.MIGL.HHZ. 2021-11-25T02:21:40.11 0.6 negative manual P 77 0.3795 96 -0.29 47
IV.SLCN.HHZ. 2021-11-25T02:21:38.82 0.6 negative manual P 242 0.2761 99 0.17 48
IX.PGN3.HHZ. 2021-11-25T02:21:38.97 0.6 undecidable manual S 294 0.1313 121 -0.12 50
IV.PTRP.HHZ. 2021-11-25T02:21:38.08 0.6 undecidable manual S 88 0.0809 139 0.14 49
IV.MTSN.HHZ. 2021-11-25T02:21:38.98 1.0 negative manual P 212 0.2959 98 0 25
IV.ACER.HHZ. 2021-11-25T02:21:38.53 0.1 positive manual P 358 0.2680 100 0.02 100
IV.MCEL.HNZ. 2021-11-25T02:21:37.49 0.1 undecidable manual P 211 0.2257 103 -0.31 95
IX.PGN3.HHZ. 2021-11-25T02:21:36.10 0.1 undecidable manual P 294 0.1313 121 -0.19 99
IV.PTRP.HHZ. 2021-11-25T02:21:35.61 0.6 positive manual P 88 0.0809 139 -0.02 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTRP.HHN. ML:0.8 0.00006945 0.92 AML other m 2021-11-25T02:21:38.37
IV.PTRP.HHE. ML:0.8 0.0000751 0.42 AML other m 2021-11-25T02:21:39.03
IV.ACER.HHN. ML:1.4 0.00011899999999999999 0.24 AML other m 2021-11-25T02:21:43.85
IV.ACER.HNN. ML:1.4 0.0001315 1.36 AML other m 2021-11-25T02:21:43.05
IV.ACER.HHE. ML:1.4 0.00011650000000000001 0.24 AML other m 2021-11-25T02:21:43.92
IV.ACER.HNE. ML:1.4 0.0001083 0.24 AML other m 2021-11-25T02:21:43.92
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, http://terremoti.ingv.it/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