Earthquake with magnitude of ML 3.1 on date 27-10-2011 and time 03:00:38 (Italy) in region 2 km S Sant'Angelo Le Fratte (PZ)

A magnitude ML 3.1 earthquake occured in region: 2 km S Sant'Angelo Le Fratte (PZ), on

  • 27-10-2011 01:00:38 (UTC)
  • 27-10-2011 03:00:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.5260, 15.5660 at 9 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
Sant'Angelo Le Fratte PZ 2 1429 1429
Savoia di Lucania PZ 5 1127 2556
Polla SA 6 5279 7835
Satriano di Lucania PZ 6 2374 10209
Brienza PZ 8 4078 14287
Caggiano SA 8 2765 17052
Atena Lucana SA 8 2336 19388
Sant'Arsenio SA 9 2815 22203
Vietri di Potenza PZ 10 2832 25035
Pertosa SA 10 690 25725
San Pietro al Tanagro SA 10 1695 27420
Sasso di Castalda PZ 10 835 28255
Tito PZ 12 7332 35587
Salvitelle SA 12 560 36147
Auletta SA 13 2336 38483
San Rufo SA 13 1754 40237
Picerno PZ 14 5985 46222
Sala Consilina SA 14 12664 58886
Balvano PZ 15 1830 60716
Romagnano al Monte SA 16 368 61084
Teggiano SA 16 7976 69060
Petina SA 17 1159 70219
Ricigliano SA 17 1144 71363
Baragiano PZ 17 2671 74034
Corleto Monforte SA 18 592 74626
Marsico Nuovo PZ 19 4098 78724
Pignola PZ 19 6962 85686

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Potenza (67122 inhabitants)
50 Km E of Battipaglia (50786 inhabitants)
70 Km E of Salerno (135261 inhabitants)
75 Km E of Cava de' Tirreni (53659 inhabitants)
78 Km SE of Avellino (54857 inhabitants)
87 Km SW of Cerignola (58396 inhabitants)
89 Km W of Matera (60436 inhabitants)
90 Km W of Altamura (70396 inhabitants)
91 Km E of Scafati (50787 inhabitants)
94 Km E of Castellammare di Stabia (66466 inhabitants)
94 Km SE of Benevento (60091 inhabitants)
99 Km SW of Andria (100440 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.9
ML 3.1
2011-10-27
01:00:38
40.526 15.566 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1301399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-10-27 01:00:38 ± 0.12
Latitude 40.5260 ± 0.0045
Longitude 15.5660 ± 0.0071
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1301399

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 546
Semi-minor axis of confidence ellipse (meter) 397
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 82
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.56
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.24196
Number of stations at which the event was observed 65
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1301399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:48:28

Md:2.9

Field Value
Value 2.9
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1301399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:48:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSRU.HHN. 2011-10-27T01:01:42.29 10.0 undecidable manual Sn 0 0 0
IV.MESG.HHN. 2011-10-27T01:01:35.84 10.0 undecidable manual Sn 0 0 0
IV.GALF.HHZ. 2011-10-27T01:01:32.79 10.0 undecidable manual Pn 0 0 0
IV.MCSR.HHN. 2011-10-27T01:01:25.64 10.0 undecidable manual Sn 0 0 0
IV.CIGN.HHE. 2011-10-27T01:01:22.95 10.0 undecidable manual Pn 0 0 0
IV.SOI.EHZ. 2011-10-27T01:01:22.79 10.0 undecidable manual Pn 0 0 0
IV.FAGN.HHZ. 2011-10-27T01:01:21.89 10.0 undecidable manual Pn 0 0 0
IV.MCSR.HHN. 2011-10-27T01:01:20.20 10.0 undecidable manual Pn 0 0 0
IV.ATN.BHZ. 2011-10-27T01:01:19.45 10.0 undecidable manual Pn 0 0 0
IV.MPNC.HHZ. 2011-10-27T01:01:19.29 10.0 undecidable manual Pn 0 0 0
IV.GMB.BHN. 2011-10-27T01:01:17.87 10.0 undecidable manual Pn 0 0 0
IV.MTGR.SHZ. 2011-10-27T01:01:17.45 10.0 undecidable manual Pn 0 0 0
IV.VVLD.HHE. 2011-10-27T01:01:16.51 10.0 undecidable manual Pn 0 0 0
IV.JOPP.HHE. 2011-10-27T01:01:16.84 10.0 undecidable manual Pn 0 0 0
IV.IFIL.EHE. 2011-10-27T01:01:16.70 10.0 undecidable manual Pn 0 0 0
IV.MSRU.HHN. 2011-10-27T01:01:16.26 10.0 undecidable manual Pn 0 0 0
IV.MILZ.HHZ. 2011-10-27T01:01:16.93 10.0 undecidable manual Pn 0 0 0
IV.GIUL.HHN. 2011-10-27T01:01:15.97 10.0 undecidable manual Pn 0 0 0
IV.GRI.EHN. 2011-10-27T01:01:14.06 10.0 undecidable manual Sg 0 0 0
IV.INTR.HHZ. 2011-10-27T01:01:13.92 10.0 undecidable manual Pn 0 0 0
IV.MESG.HHN. 2011-10-27T01:01:12.39 10.0 undecidable manual Pn 0 0 0
IV.SERS.HHN. 2011-10-27T01:01:12.52 10.0 undecidable manual Pn 0 0 0
IV.USI.HHN. 2011-10-27T01:01:11.89 10.0 undecidable manual Pn 0 0 0
IV.OC9.EHZ. 2011-10-27T01:01:10.15 10.0 undecidable manual Sg 0 0 0
IV.MIDA.HHE. 2011-10-27T01:01:10.44 10.0 undecidable manual Pn 0 0 0
IV.FRES.HHN. 2011-10-27T01:01:10.39 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHN. 2011-10-27T01:01:09.72 10.0 undecidable manual Pg 0 0 0
IV.PIPA.HHZ. 2011-10-27T01:01:08.07 10.0 undecidable manual Pg 0 0 0
IV.BSSO.HHZ. 2011-10-27T01:01:08.44 10.0 undecidable manual Sg 0 0 0
IV.CERA.HHN. 2011-10-27T01:01:08.14 10.0 undecidable manual Pg 0 0 0
IV.MODR.HHZ. 2011-10-27T01:01:06.51 10.0 undecidable manual Pg 0 0 0
IV.OC9.EHZ. 2011-10-27T01:01:05.21 10.0 undecidable manual Pg 0 0 0
IV.VAGA.HHZ. 2011-10-27T01:01:04.76 10.0 undecidable manual Pg 0 0 0
IV.MSC.EHZ. 2011-10-27T01:01:03.58 10.0 undecidable manual Pg 0 0 0
IV.CAR1.HHZ. 2011-10-27T01:01:03.50 10.0 undecidable manual Pg 0 0 0
IV.POZ.EHZ. 2011-10-27T01:01:02.00 10.0 undecidable manual Pg 0 0 0
IV.MIGL.HHZ. 2011-10-27T01:01:01.64 0.6 undecidable manual Sg 83 74.2701 0.863 35
IV.BSSO.HHZ. 2011-10-27T01:01:01.00 10.0 undecidable manual Pg 0 0 0
IV.SGG.HHZ. 2011-10-27T01:01:01.43 0.6 undecidable manual Pg 314 137.862 0.434 37
IV.GATE.HHZ. 2011-10-27T01:01:00.23 1.0 undecidable manual Pg 334 122.4885 1.603 11
IV.PTRJ.HHZ. 2011-10-27T01:00:59.72 0.6 undecidable manual Pg 317 127.1727 0.357 38
IV.MSAG.HHN. 2011-10-27T01:00:59.63 0.6 undecidable manual Pg 12 134.5653 -0.871 31
IV.SGRT.HHN. 2011-10-27T01:00:59.95 0.6 undecidable manual Pg 6 137.0628 -0.926 30
IV.NOCI.HHZ. 2011-10-27T01:00:59.49 0.6 undecidable manual Pg 77 129.3705 -0.208 39
IV.SACR.HHZ. 2011-10-27T01:00:58.98 0.3 undecidable manual Pg 324 120.4905 0.647 53
IV.CAFE.HHN. 2011-10-27T01:00:57.58 0.6 undecidable manual Sg 334 62.0934 0.029 46
IV.PAOL.HHZ. 2011-10-27T01:00:56.06 0.3 undecidable manual Pg 304 100.8213 0.76 53
IV.MOCO.HHZ. 2011-10-27T01:00:55.45 0.3 undecidable manual Pg 340 99.6225 0.34 61
IV.SNAL.HHZ. 2011-10-27T01:00:55.96 0.1 undecidable manual Sg 326 53.502 0.722 78
IV.SCHR.EHZ. 2011-10-27T01:00:55.99 0.1 undecidable manual Sg 130 56.2992 -0.013 94
IV.BULG.HHZ. 2011-10-27T01:00:55.58 0.1 undecidable manual Sg 198 52.2033 0.678 80
IV.PSB1.HHZ. 2011-10-27T01:00:54.55 0.3 undecidable manual Pg 321 99.9222 -0.612 56
IV.AMUR.HHZ. 2011-10-27T01:00:54.59 0.6 undecidable manual Pg 64 96.9252 -0.107 43
IV.ORI.HHZ. 2011-10-27T01:00:54.09 0.3 undecidable manual Pg 125 91.5417 0.225 63
GE.MATE.HHZ. 2011-10-27T01:00:54.57 0.6 undecidable manual Pg 82 96.8253 -0.112 43
IV.SALB.HHE. 2011-10-27T01:00:54.06 0.6 undecidable manual Pg 137 97.7244 -0.759 35
IV.SIRI.HHZ. 2011-10-27T01:00:53.58 0.3 undecidable manual Sg 146 45.9207 0.359 67
IV.ACER.HHZ. 2011-10-27T01:00:52.25 0.3 undecidable manual Sg 48 42.8238 -0.156 70
IV.MRB1.HHZ. 2011-10-27T01:00:52.14 0.3 undecidable manual Pg 323 83.0502 -0.413 62
IV.MGR.HHZ. 2011-10-27T01:00:52.18 0.6 undecidable manual Sg 181 43.1235 -0.304 45
IV.MMN.HHZ. 2011-10-27T01:00:51.55 0.3 undecidable manual Pg 153 79.1652 -0.402 62
IV.SGTA.HHZ. 2011-10-27T01:00:50.04 0.3 undecidable manual Pg 346 69.5748 -0.44 63
IV.MIGL.HHZ. 2011-10-27T01:00:50.97 0.6 undecidable manual Pg 83 74.2701 -0.225 44
IV.OFFI.HHE. 2011-10-27T01:00:50.61 10.0 undecidable manual Pg 0 0 0
IV.MTSN.HHZ. 2011-10-27T01:00:50.50 0.1 undecidable manual Sg 151 32.8449 0.771 80
MN.CUC.HHZ. 2011-10-27T01:00:49.10 0.1 undecidable manual Pg 160 62.7927 -0.327 87
IV.CAFE.HHN. 2011-10-27T01:00:49.22 0.1 undecidable manual Pg 334 62.0934 -0.113 91
IV.SCHR.EHZ. 2011-10-27T01:00:48.08 0.1 undecidable manual Pg 130 56.2992 -0.359 88
IV.MRLC.HHZ. 2011-10-27T01:00:48.56 0.3 undecidable manual Sg 346 26.3514 0.771 60
IV.BULG.HHZ. 2011-10-27T01:00:47.87 0.1 undecidable manual Pg 198 52.2033 0.067 94
IV.PALZ.HHZ. 2011-10-27T01:00:47.93 0.1 undecidable manual Pg 35 56.8986 -0.603 82
IV.SNAL.HHZ. 2011-10-27T01:00:47.67 0.1 undecidable manual Pg 326 53.502 -0.328 89
IV.CDRU.HHZ. 2011-10-27T01:00:46.39 0.1 undecidable manual Sg 260 22.4553 -0.141 97
IV.MGR.HHZ. 2011-10-27T01:00:46.19 0.1 undecidable manual Pg 181 43.1235 -0.217 92
IV.ACER.HHZ. 2011-10-27T01:00:46.33 0.1 undecidable manual Pg 48 42.8238 -0.032 96
IV.SIRI.HHZ. 2011-10-27T01:00:46.65 0.1 undecidable manual Pg 146 45.9207 -0.183 93
IV.MCRV.HHZ. 2011-10-27T01:00:45.91 0.3 undecidable manual Pg 310 43.9227 -0.613 62
BA.PZUN.HHZ. 2011-10-27T01:00:44.15 0.1 undecidable manual Pg 57 24.2535 0.848 78
IV.MTSN.HHZ. 2011-10-27T01:00:44.99 0.1 undecidable manual Pg 151 32.8449 0.173 95
IV.CMPR.HHZ. 2011-10-27T01:00:44.48 0.1 undecidable manual Pg 224 32.0457 -0.219 94
IV.MRLC.HHZ. 2011-10-27T01:00:43.60 0.1 undecidable manual Pg 346 26.3514 -0.096 98
IV.CDRU.HHZ. 2011-10-27T01:00:42.96 0.1 undecidable manual Pg 260 22.4553 -0.01 100
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