Earthquake with magnitude of ML 1.1 on date 27-07-2021 and time 23:44:31 (Italy) in region 3 km N Corleto Monforte (SA)

A magnitude ML 1.1 earthquake occured in region: 3 km N Corleto Monforte (SA), on

  • 27-07-2021 21:44:31 (UTC)
  • 27-07-2021 23:44:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.469, 15.392 at 10 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
Corleto Monforte SA 4 592 592
Sant'Angelo a Fasanella SA 4 635 1227
Ottati SA 6 618 1845
San Rufo SA 7 1754 3599
Petina SA 7 1159 4758
Sant'Arsenio SA 8 2815 7573
San Pietro al Tanagro SA 8 1695 9268
Roscigno SA 9 817 10085
Bellosguardo SA 9 794 10879
Pertosa SA 10 690 11569
Sacco SA 10 492 12061
Polla SA 10 5279 17340
Auletta SA 10 2336 19676
Aquara SA 12 1545 21221
Sicignano degli Alburni SA 13 3519 24740
Castelcivita SA 14 1739 26479
Piaggine SA 14 1311 27790
Valle dell'Angelo SA 14 248 28038
Caggiano SA 14 2765 30803
Atena Lucana SA 14 2336 33139
Salvitelle SA 15 560 33699
Castel San Lorenzo SA 15 2471 36170
Laurino SA 15 1548 37718
Teggiano SA 16 7976 45694
Felitto SA 16 1283 46977
Controne SA 17 875 47852
Sant'Angelo Le Fratte PZ 17 1429 49281
Postiglione SA 17 2151 51432
Roccadaspide SA 17 7209 58641
Vietri di Potenza PZ 18 2832 61473
Savoia di Lucania PZ 18 1127 62600
Romagnano al Monte SA 18 368 62968
Buccino SA 18 5047 68015
Sala Consilina SA 18 12664 80679
Magliano Vetere SA 19 695 81374
Monte San Giacomo SA 19 1572 82946
Campora SA 20 439 83385

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Battipaglia (50786 inhabitants)
40 Km SW of Potenza (67122 inhabitants)
58 Km E of Salerno (135261 inhabitants)
63 Km E of Cava de' Tirreni (53659 inhabitants)
71 Km SE of Avellino (54857 inhabitants)
79 Km E of Scafati (50787 inhabitants)
81 Km E of Castellammare di Stabia (66466 inhabitants)
90 Km SE of Benevento (60091 inhabitants)
94 Km E of Torre del Greco (86275 inhabitants)
96 Km E of Portici (55274 inhabitants)
96 Km E of Ercolano (53709 inhabitants)
99 Km SW of Cerignola (58396 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
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 the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-07-27
21:44:31
40.4687 15.3922 10 2021-07-27
21:50:32
Sala Sismica INGV-Roma 93283161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-27 21:44:31 ± 0.13
Latitude 40.4687 ± 0.0090
Longitude 15.3922 ± 0.0095
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93283161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1160
Semi-minor axis of confidence ellipse (meter) 461
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 36
Circular confidence region, given by single value of horizontal uncertainty (meter) 1160
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.35703
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 93283161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-27 21:50:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTSN.HHZ. 2021-07-27T21:44:44.56 0.6 undecidable manual S 126 0.3399 50 0.3 66
IX.SNR3.EHZ.02 2021-07-27T21:44:42.82 0.6 undecidable manual S 331 0.3067 50 -0.45 64
IX.STN3.HNZ.01 2021-07-27T21:44:40.01 0.6 undecidable manual S 73 0.2068 113 0.02 71
IV.MCEL.HHZ. 2021-07-27T21:44:39.22 0.6 negative manual P 115 0.3435 50 0.35 65
IV.MCRV.HHZ. 2021-07-27T21:44:39.05 0.6 undecidable manual P 332 0.357 50 -0.05 69
IX.PGN3.HHZ.02 2021-07-27T21:44:38.74 0.6 positive manual P 71 0.3247 50 0.2 67
IX.SNR3.EHZ.02 2021-07-27T21:44:38.37 0.6 negative manual P 331 0.3067 50 0.12 69
IV.MGR.HHZ. 2021-07-27T21:44:38.60 0.3 negative manual P 160 0.3525 50 -0.43 96
IV.MTSN.HHZ. 2021-07-27T21:44:38.76 0.6 undecidable manual P 126 0.3399 50 -0.06 69
IX.STN3.HNZ.01 2021-07-27T21:44:36.37 0.6 negative manual P 73 0.2068 113 0.02 71
IX.SCL3.EHZ.02 2021-07-27T21:44:36.96 0.6 positive manual P 22 0.2437 109 -0.16 69
IV.SGO.HHZ. 2021-07-27T21:44:36.90 0.6 undecidable manual S 325 0.1124 127 0.09 72
IV.SGO.HHZ. 2021-07-27T21:44:34.95 0.3 undecidable manual P 325 0.1124 127 0.44 100
IX.SRN3.HHZ.02 2021-07-27T21:44:34.82 0.6 undecidable manual S 71 0.0531 148 -0.44 67
IX.SRN3.HHZ.02 2021-07-27T21:44:33.60 0.6 undecidable manual P 71 0.0531 148 -0.01 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.SRN3.HHE.02 ML:2.1 0.0021 1.76 AML other m 2021-07-27T21:44:34.95
IX.SRN3.HHN.02 ML:2.2 0.002395 0.4 AML other m 2021-07-27T21:44:35.62
IV.SGO.HHE. ML:1.2 0.0001655 0.64 AML other m 2021-07-27T21:44:37.07
IV.SGO.HHN. ML:1.5 0.000346 0.4 AML other m 2021-07-27T21:44:37.16
IX.SCL3.EHE.02 ML:1.2 8.59E-5 0.98 AML other m 2021-07-27T21:44:42.49
IX.SNR3.EHE.02 ML:0.8 3.08E-5 0.12 AML other m 2021-07-27T21:44:44.26
IX.SNR3.EHN.02 ML:1.2 6.21E-5 0.12 AML other m 2021-07-27T21:44:44.49
IV.MCRV.HHE. ML:0.5 1.1675E-5 1.16 AML other m 2021-07-27T21:44:45.28
IX.PGN3.HHE.02 ML:1 4.215E-5 0.78 AML other m 2021-07-27T21:44:45.78
IX.SCL3.EHN.02 ML:1.4 0.0001445 0.3 AML other m 2021-07-27T21:44:45.73
IX.PGN3.HHN.02 ML:1 3.88E-5 0.86 AML other m 2021-07-27T21:44:46.44
IV.MCEL.HHE. ML:1 3.27E-5 1.54 AML other m 2021-07-27T21:44:47.04
IV.MCEL.HHN. ML:1 3.97E-5 0.46 AML other m 2021-07-27T21:44:47.32
IV.MTSN.HHE. ML:1 4.07E-5 0.22 AML other m 2021-07-27T21:44:47.53
IV.MGR.HHE. ML:0.8 2.71E-5 1 AML other m 2021-07-27T21:44:47.72
IV.MTSN.HHN. ML:1.2 5.3E-5 0.66 AML other m 2021-07-27T21:44:48.63
IV.MGR.HHN. ML:0.9 3.195E-5 0.6 AML other m 2021-07-27T21:44:49.69
IV.MCRV.HHN. ML:0.8 2.27E-5 0.52 AML other m 2021-07-27T21:44:51.55
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