Earthquake with magnitude of ML 1.2 on date 27-10-2021 and time 08:10:21 (UTC) in region 12 km S San Giovanni Rotondo (FG)

A magnitude ML 1.2 earthquake occured in region: 12 km S San Giovanni Rotondo (FG), on

  • 27-10-2021 08:10:21 (UTC)
  • 27-10-2021 10:10:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.599, 15.7 at 2 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
San Giovanni Rotondo FG 12 27184 27184
Rignano Garganico FG 13 2117 29301
San Marco in Lamis FG 14 13831 43132
Manfredonia FG 19 57279 100411
Foggia FG 20 151991 252402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Manfredonia (57279 inhabitants)
20 Km NE of Foggia (151991 inhabitants)
28 Km E of San Severo (53905 inhabitants)
41 Km NW of Cerignola (58396 inhabitants)
57 Km NW of Barletta (94814 inhabitants)
65 Km NW of Andria (100440 inhabitants)
70 Km NW of Trani (56217 inhabitants)
78 Km NW of Bisceglie (55422 inhabitants)
87 Km NW of Molfetta (59874 inhabitants)
93 Km NE of Benevento (60091 inhabitants)
99 Km NW of Bitonto (55540 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 1.2 2021-10-27
08:10:21
41.5992 15.7005 3 2021-10-27
08:18:35
Sala Sismica INGV-Roma 97017341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-27 08:10:21 ± 0.15
Latitude 41.5992 ± 0.0072
Longitude 15.7005 ± 0.0048
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97017341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 740
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.19695
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 97017341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-27 08:18:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSAG.HHZ. 2021-10-27T08:10:29.04 0.6 undecidable manual S 54 0.1925 97 0.24 47
IV.APRC.HHZ. 2021-10-27T08:10:28.59 0.6 undecidable manual S 323 0.197 97 -0.38 46
OT.OT04.EHZ. 2021-10-27T08:10:27.07 0.6 undecidable manual S 323 0.1502 99 -0.1 49
IV.SGRT.HHZ. 2021-10-27T08:10:27.39 0.6 undecidable manual S 12 0.1583 98 -0.11 49
OT.OT12.EHZ. 2021-10-27T08:10:27.60 0.6 undecidable manual S 78 0.1583 98 0.11 49
OT.OT03.EHZ. 2021-10-27T08:10:26.23 0.6 undecidable manual S 341 0.1187 101 0.23 48
OT.OT06.EHZ. 2021-10-27T08:10:26.35 0.6 undecidable manual S 317 0.1169 101 0.42 46
OT.OT05.EHZ. 2021-10-27T08:10:25.54 0.6 undecidable manual S 309 0.0944 104 0.46 46
IV.APRC.HHZ. 2021-10-27T08:10:25.43 0.3 undecidable manual P 323 0.197 97 -0.31 70
IV.MSAG.HHZ. 2021-10-27T08:10:25.64 0.3 undecidable manual P 54 0.1925 97 0 74
OT.OT12.EHZ. 2021-10-27T08:10:24.93 0.3 undecidable manual P 78 0.1583 98 0.04 74
OT.OT03.EHZ. 2021-10-27T08:10:24.11 0.3 undecidable manual P 341 0.1187 101 0.08 74
OT.OT04.EHZ. 2021-10-27T08:10:24.57 0.3 undecidable manual P 323 0.1502 99 -0.13 73
IV.SGRT.HHZ. 2021-10-27T08:10:24.80 0.3 undecidable manual P 12 0.1583 98 -0.09 73
OT.OT06.EHZ. 2021-10-27T08:10:24.07 0.3 undecidable manual P 317 0.1169 101 0.08 74
OT.OT05.EHZ. 2021-10-27T08:10:23.45 0.1 undecidable manual P 309 0.0944 104 -0.05 100
OT.OT07.EHZ. 2021-10-27T08:10:22.12 0.3 undecidable manual P 32 0.0261 131 0.01 77
OT.OT07.EHZ. 2021-10-27T08:10:22.44 0.6 undecidable manual S 32 0.0261 131 -0.23 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT05.EHN. ML:1.5 0.0005105 1.18 AML other m 2021-10-27T08:10:27.71
OT.OT05.EHE. ML:-0.1 1.74E-5 0.26 AML other m 2021-10-27T08:10:28.52
IV.MSAG.HHE. ML:0.9 6.20345E-5 0.3456 AML other m 2021-10-27T08:10:30.73
IV.SGRT.HHE. ML:1.3 0.00019166365 0.4608 AML other m 2021-10-27T08:10:30.39
IV.SGRT.HHN. ML:1.3 0.00020846835 0.4608 AML other m 2021-10-27T08:10:30.92
IV.MSAG.HHN. ML:1.2 0.00011345 1.66 AML other m 2021-10-27T08:10:31.90
IV.APRC.HHN. ML:1.4 0.00019484955 0.4032 AML other m 2021-10-27T08:10:33.47
OT.OT12.EHE. ML:0.7 5.1221725E-5 0.3008 AML other m 2021-10-27T08:10:33.23
OT.OT12.EHN. ML:1 0.000106089925 0.4608 AML other m 2021-10-27T08:10:31.81
IV.APRC.HNE. ML:1.4 0.00018583445 0.4736 AML other m 2021-10-27T08:10:35.08
IV.MSAG.HNE. ML:1.3 0.0001480886 0.3456 AML other m 2021-10-27T08:10:30.73
IV.MSAG.HNN. ML:1.5 0.00027105985 0.3392 AML other m 2021-10-27T08:10:31.90
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