Earthquake with magnitude of Md 3.1 on date 25-01-1998 and time 03:48:36 (Italy) in region 12 km NE Grottole (MT)

A magnitude Md 3.1 earthquake occured in region: 12 km NE Grottole (MT), on

  • 25-01-1998 02:48:36 (UTC)
  • 25-01-1998 03:48:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.698, 16.444 at 52 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
Grottole MT 12 2208 2208
Matera MT 14 60436 62644
Gravina in Puglia BA 14 43872 106516
Grassano MT 15 5189 111705
Miglionico MT 15 2510 114215
Altamura BA 17 70396 184611
Irsina MT 18 4960 189571

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km W of Matera (60436 inhabitants)
17 Km SW of Altamura (70396 inhabitants)
51 Km SW of Bitonto (55540 inhabitants)
54 Km E of Potenza (67122 inhabitants)
58 Km S of Molfetta (59874 inhabitants)
60 Km SW of Bari (326344 inhabitants)
60 Km S of Andria (100440 inhabitants)
61 Km S of Bisceglie (55422 inhabitants)
64 Km S of Trani (56217 inhabitants)
71 Km S of Barletta (94814 inhabitants)
71 Km W of Taranto (201100 inhabitants)
78 Km SE of Cerignola (58396 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 3.1 1998-01-25
02:48:36
40.698 16.444 52 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 321379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-01-25 02:48:36 ± 0.895
Latitude 40.6980 ± 0.0504
Longitude 16.4440 ± 0.0706
Depth (km) 52 ± 22 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 321379

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 8175.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00575
Epicentral distance of station farthest from the epicenter (degree) 0.01708
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 321379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:01:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CRVI.Z. 1998-01-25T02:49:06.60 10.0 undecidable manual P 302 0.0171 -0.85 0.2
--.SMB1.Z. 1998-01-25T02:49:01.44 10.0 undecidable manual P 298 0.0133 0.38 0.8
--.MRB1.Z. 1998-01-25T02:48:57.57 10.0 undecidable manual P 290 0.0107 0.33 1
--.CI9.Z. 1998-01-25T02:48:56.42 10.0 undecidable manual P 278 0.0097 0.6 0.6
--.FG5.Z. 1998-01-25T02:48:55.32 10.0 undecidable manual P 303 0.0096 -0.16 1.4
--.SGO.Z. 1998-01-25T02:48:53.00 10.0 undecidable manual P 260 0.0079 0.02 1.5
--.CA9.Z. 1998-01-25T02:48:52.00 10.0 undecidable manual P 284 0.007 0.16 1.4
--.MU9.Z. 1998-01-25T02:48:51.80 10.0 undecidable manual P 274 0.0065 0 1.5
--.ORI.Z. 1998-01-25T02:48:50.25 10.0 undecidable manual P 179 0.0057 0.17 1.4
--.SL9.Z. 1998-01-25T02:48:49.90 10.0 undecidable manual P 243 0.0062 -0.7 0.4
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